Compaq DC7600 HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer
Compaq DC7600 - HP Manual
UPC - 882780682009
View all Compaq DC7600 manuals
Add to My Manuals
Save this manual to your list of manuals |
Compaq DC7600 manual content summary:
- Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 1
Technical Reference Guide HP Compaq dx7200 and dc7600 Series Business Desktop Computers Document Part Number: 391758-001 January 2005 This document provides information on the design, architecture, function, and capabilities of the HP Compaq dx7200 and dc7600 Series Business Desktop Computers. This - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 2
Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft, MS-DOS, Windows, and Windows loss of information. Technical Reference Guide HP Compaq dx7200 and dc7600Series Business Desktop Computers First Edition (May 2005) Document Part - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 3
2.4.4 System Memory 2-22 2.4.5 Mass Storage 2-23 2.4.6 Serial and Parallel Interfaces 2-23 2.4.7 Universal Serial Bus Interface 2-23 2.4.8 Network Interface Controller 2-23 2.4.9 Graphics Subsystem 2-24 2.4.10Audio Subsystem 2-24 2.5 Specifications 2-25 Technical Reference Guide www.hp.com - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 4
Upgrading 3-3 3.3 Memory Subsystem 3-4 4 System Support 4.1 Introduction 4-1 4.2 PCI Bus Overview 4-1 4.2.1 PCI 2.3 Bus Operation 4-2 4.2.2 PCI Express Bus Operation 4-6 4.2.3 Option ROM Mapping 4-8 4.2.4 PCI Interrupts 4-8 4.2.5 PCI Power Management Support hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 5
Cable Data 5-29 5.8 Audio Subsystem 5-30 5.8.1 HD Audio Controller 5-31 5.8.2 HD Audio Link Bus 5-31 5.8.3 Audio Codec 5-32 5.8.4 Audio Programming 5-33 5.8.5 Audio Specifications 5-35 5.9 Network Interface Controller 5-36 5.9.1 Wake-On-LAN Support 5-37 5.9.2 Alert Standard Format Support - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 6
Contents 8 BIOS ROM 8.1 Introduction 8-1 8.2 ROM Flashing 8-2 8.2.1 Upgrading 8-2 8.2.2 Changeable Splash Screen 8-3 8.3 Boot Functions 8-3 8.3.1 Boot Device Order 8-3 8.3.2 Network Boot (F12) Support 8-4 8.3.3 Memory Detection and Configuration 8-4 8.3.4 Boot Error Codes 8-5 8.4 Setup - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 7
and the power supply assembly. The appendices contain general data such as error codes and information about standard peripheral devices such as keyboards, graphics cards, and communications adapters. This guide can be used either as an online document or in hardcopy form. 1.1.1 Online Viewing - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 8
Introduction 1.3 Model Numbering Convention The model numbering convention or HP systems is as follows: 1-2 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 9
read with HP Diagnostics or Insight Manager utilities. 1.5 Notational Conventions The notational guidelines used in this guide are described Register Notation and Usage This guide uses standard Intel naming conventions in discussing the microprocessor's (CPU) internal registers. Registers that are - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 10
Analog-to-digital converter ADD or ADD2 Advanced digital display (card) AGP Accelerated graphics port API application programming interface APIC Advanced Programmable Interrupt Controller APM advanced power management AOL Alert-On-LAN™ ASIC application-specific integrated circuit ASF - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 11
tube 1. Compaq system management 2. Compaq server management digital-to-analog converter direct current DOS compatibility hole Display Data Channel Double data rate (memory) dual inline memory module Deutche IndustriNorm (connector type) dual inline package direct memory access Desktop management - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 12
Data (format) Environmental Variable (data) Exchangeable Card Architecture first in/first out flag (register) frequency modulation fast page mode (RAM type) Floating point unit (numeric or math coprocessor) Frames per second Foot/feet gigabyte Graphics/memory controller hub ground general purpose - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 13
byte logical unit (SCSI) Meter Memory controller hub multimedia extensions Motion Picture Experts Group millisecond most significant bit/most significant byte multiplex motion video acceleration motion video window variable parameter/value network interface card/controller nickel-metal hydride non - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 14
PCI Express pulse code modulation Personal Computer Memory Card International Association PCI express graphics Power factor correction personal identification number Programmed I/O Part number power-on self test programmable read-only memory pointer random access memory row address strobe - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 15
and Abbreviations Description Single instruction multiple data single in-line memory module Self Monitor Analysis Report Technology system management interrupt system management mode system management RAM serial presence detect Sony/Philips Digital Interface (IEC-958 specification) Spare part number - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 16
WRAM ZF ZIF Table 1-1 Acronyms and Abbreviations Description Volts direct current Video Electronic Standards Association video graphics adapter very large scale integration Video RAM watt Wake-On-LAN Windows RAM zero flag zero insertion force (socket) 1-10 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 17
Compaq dc7600 USDT HP Compaq dc7600 SFF HP Compaq dc7600 CMT Figure 2-1. HP Compaq dx7200and dc7600 Series Business Desktop Computers This chapter includes the following topics: ■ Features (2.2), page 2-2 ■ Mechanical design (2.3), page 2-4 ■ System architecture (2.4), page 2-16 ■ Specifications - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 18
on all models ■ Serial ATA (SATA) interfaces supporting transfer rates up to 3.0 Gbps ■ Parallel ATA (PATA or Ultra ATA 100/66/33) interface ■ PCI 2.3 and PCI Express interfaces ■ Hard drive fault prediction ■ Eight USB 2.0 ports ■ High definition (HD) audio processor with one headphone output, at - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 19
2-1 Difference Matrix by Form Factor USDT SFF ST MT CMT Series dc7600 dc7600 dx7200 dx7200 dc7600 System Board Type custom custom custom µATX µATX Serial and parallel ports Optional [1] Standard Standard Standard Standard Memory: # of sockets Maximum memory Memory type 3 3 GB - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 20
in the supplied tower stand. ■ Small Form Factor (SFF)-A small-footprint desktop requiring minimal desk space. ■ Slim Tower (ST)-Slim design that can be used in a tradition desktop (horizontal) orientation or as a small tower mounted in the supplied tower stand. ■ Convertible Minitower (CMT) -an ATX - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 21
Figure 2-2 shows the front panel components of the Ultra Slim Desktop (USDT) format factor. Item 1 2 3 4 Description MultiBay device bay MultiBay device eject lever Microphone audio In jack Headphone audio Out jack Item 5 6 7 8 Figure 2-2. HP Compaq dc7600 USDT Front View Decription USB ports - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 22
components of the Small Form Factor (SFF). Item 1 2 3 4 5 6 Description Diskette drive activity LED Diskette drive media door CD-ROM drive acitvity LED Diskette drive eject button CD-ROM media tray CD-ROM drive open/close button Item 7 8 9 10 11 12 Figure 2-3. HP Compaq dc7600 SFF Front View - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 23
shows the front panel components of the Slim Tower (ST) form factor. Item 1 2 3 4 5 6 Description Microphone audio in jack Headphone audio out jack USB ports 7, 8 hard drive activity LED Power LED Power button Item 7 8 9 10 11 12 Figure 2-4. HP Compaq dx7200 ST Front View Decription Diskette - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 24
drive CD-ROM drive activity LED Diskette drive media door Diskette drive activity LED Diskette drive eject button USB ports 7, 8 Item 7 8 9 10 11 12 Figure 2-5. HP Compaq dx7200 MT Front View Decription CD-ROM drive open/close button Power button Power LED Hard drive activity LED Headphone audio - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 25
components of the Convertable Minitower (CMT) form factor. Item 1 2 3 4 5 6 Description CD-ROM drive CD-ROM drive activity LED Diskette drive media door Diskette drive activity LED Diskette drive eject button Hard drive activity LED Item 7 8 9 10 11 12 Figure 2-6. HP Compaq dc7600 CMT Front View - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 26
rear panels of the dx7200 and dc7600 models. Note that not all connectors listed are provided on all form factors. Table 2-2 Rear Panel Signal Connections Connector & Icon Description (no icon) AC input connector. PS/2 female connector (color-coded purple) for keyboard interface. PS/2 female - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 27
and/or the maintenance and service guide for these systems. UIltra Slim Desktop Chassis The Ultra Slim Desktop (USDT) chassis used for the HP Compaq dc7600 models uses a compact, space-saving form factor. 1 2 3 7 4 6 5 Item 1 2 3 4 Description Power supply assembly DIMM sockets (3) PCI - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 28
Form Factor / Slim Tower Chassis The chassis layouts for the Small Form Factor (SFF) used for the HP Compaq dc7600 models and the Slim Tower (ST) used for the HP Comapq dx7200 models are shown in Figure 2-8. Features include: ■ Tilting drive cage assembly for easy access to processor and memory - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 29
(MT) chassis used for the HP Compaq dx7200 models. Features include: ■ Externally accessible drive bay assembly. ■ Easy access to expansion slots and all socketed system board components. 1 23 4 5 6 q - 9 7 8 Item 1 2 3 4 Description Power supply assembly Processor socket DIMM sockets - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 30
2-10 shows the layout for the Convertible Minitower (CMT) chassis in the minitower configuration used for HP Compaq dc7600 models. Features include: ■ Externally accessible drive bay assembly may be configured for minitower (vertical) or desktop (horizontal) position. ■ Easy access to expansion - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 31
speaker connector Front panel audio connector Chassis fan, secondary Front panel USB port connector Chassis fan connector Processor fan connctor DIMM sockets (3) MultiBay riser connector Battery Power supply connector Figure 2-11. USDT System Board Technical Reference Guide www.hp.com 2-15 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 32
Front panel USB port connector DIMM sockets (4) Diskette drive connector PATA (primary IDE) connector Auxiliary audio input connector Battery Power supply connector Cover lock (solenoid) connector Cover sensor connector NOTE: See SFF and ST rear chassis illustrations for externally accessible - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 33
Description PCI 2.3 slots Battery PCI Express x1 slot PCI Express x16 graphics/normal-layout SDVO slot Chassis fan header Power supply (VccP) connector Serial port B header [2] Processor socket Processor fan connector DIMM sockets (4) Power supply connector Diskette drive connector Primary IDE (PATA - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 34
(DMI). The SFF, ST, MT, and CMT form factors use the integrated graphics controller of the 82945G that may be upgraded through a PCI Express x16 graphics slot. All systems include at least one PCI 2.3 slot, and feature as standard a serial ATA (SATA) hard drive. The USDT models feature support for - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 35
NIC I/F PCI Express x1 slot [1] Power Supply [1] USDT: reverse-layout ADD2 card only. SFF/ST: reverse layout graphics, ADD2, SDVO card. CMT: normal-layout graphics, ADD2, SDVO card. [2] Option for USDT form factor, standard on SFF, ST, MT, and CMT form factors. Figure 2-14. System Architecture - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 36
models covered in this guide feature the Intel Pentium the use of multimedia extension (MMX) instructions. Also included are streaming SIMD extensions ( form factors. Always use the same assembly or one of the same type when replacing the processor. Refer to the applicable Service Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 37
Overview 2.4.2 Chipset The chipset consists of a Graphics Memory Controller Hub (GMCH), an enhanced I/O controller hub support HD audio interface RTC/CMOS IRQ controller Power management logic USB 1.1/2.0 controllers supporting eight (8) ports 82802 FWH [1] Loaded with HP/Compaq BIOS NOTE - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 38
Controller 10/100/1000 Fast Ethernet network interface controller. ALC260 HD Audio Codec Audio mixer One digital-to-analog 2-channel converter Two analog-to-digital 2-channel converters Analog I/O 2-channel audio support 2.4.4 System Memory These systems implement a dual-channel Double Data Rate - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 39
form factor may be upgraded with an adapter to provide serial and parallel ports. The SFF, ST, MT, and CMT form factors may be upgraded with an optional second serial port. The serial interface is RS-232-C/16550-compatible and supports area network and includes power-down, wake-up, and Alert-On-LAN ( - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 40
the PCI 2.3 slot. ✎ The PCI Express x16 slot of the USDT form factor only supports a reverse-layout SDVO ADD2 card. A full graphics controller upgrade on the USDT form factor is only possible through the PCI 2.3 slot 2.4.10 Audio Subsystem These systems use the integrated HDaudio controller of the - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 41
2-8 Electrical Specifications Parameter U.S. Input Line Voltage: Nominal: Maximum: 100-240 VAC 90-264 VAC Input Line Frequency Range: Nominal: Maximum: 50-60 Hz 47-63 Hz Power Supply: Maximum Continuous Power: USDT ST or SFF MT CMT Maximum Line Current Draw: USDT SF or SFF MT CMT 200 watts - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 42
drives/peripherals. [2] Without MultiBay device installed. [3] Minitower configuration. For desktop configuration, swap Height and Width dimensions. [4] Applicable to unit in desktop orientation only and assumes reasonable type of load such as a monitor. 2-26 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 43
Table 2-10 Diskette Drive Specifications Parameter Measurement Media Type 3.5 in 1.44 MB/720 KB diskette Height 1/3 bay (1 in) Bytes per Sector 512 Sectors per ) Settling Time Latency Average 3 ms/6 ms 94 ms/169 ms 15 ms 100 ms System Overview Technical Reference Guide www.hp.com 2-27 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 44
Disc Diameter Disc Thickness Track Pitch Laser Beam Divergence Output Power Type Wave Length Average Access Time: Random Full Stroke Audio Output Level Cache Buffer Table 2-11 Optical Drive Specifications 48x CD-ROM 48/24/28x CD-RW Drive IDE IDE Mode 1,2, Mixed Mode, CD-DA, Mode 1,2, Mixed - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 45
System Overview Table 2-12 Hard Drive Specifications Parameter 40 GB 80 GB Drive Size 3.5 in 3.5 in Interface SATA SATA Transfer Rate 300 Gb/s 300 Gb/s Drive Protection System Support? Yes Yes Typical Seek Time (w/settling) Single Track Average Full Stroke 1.2 ms 8.0 ms 18 ms 0.8 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 46
System Overview 2-30 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 47
(Figure 3-1). The dx7200 and dc7600 models support PC2-4200 DDR2 DIMMs. Pentium 4 Processor FSB I/F 82945G SDRAM GMCH Cntrl Note: [1] SFF, ST, and CMT models only. XMM1 Ch A DIMM XMM2 [1] Ch A DIMM Ch B DIMM XMM3 Ch B DIMM XMM4 Figure 3-1. Processor/Memory Subsystem Architecture This chapter - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 48
Streaming SIMD extensions (SSE2)-In addition to the SSE support provided by previous Pentium processors, the Pentium 4 processor includes an additional 144 MMX instructions, further enhancing: ❏ Streaming video/audio processing ❏ Photo/video editing ❏ Speech recognition ❏ 3D processing ❏ Encryption - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 49
is compatible with software written for x86 processors. 3.2.2 Processor Upgrading All models use the LGA775 ZIF (Socket T) mounting socket. to the applicable Service Reference Guide for processor installation instructions. Ä CAUTION: Installing a processor that is not supported by the system - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 50
Processor/Memory Subsystem 3.3 Memory Subsystem All models support PC2-4200 DDR2 (533-MHz) memory. The USDT form factor supports up to 3 gigabytes of memory while the SFF, ST, MT, and CMT form factors support up to 4 gigabytes of memory. ✎ The DDR SDRAM "PCxxxx" reference designates bus bandwidth - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 51
[1] Present on SFF, ST, MT, and CMT form factors only. Total 128-MB 256-MB (dual-channel) 384-MB (dual-channel) 512-MB (dua- channel) 256-MB 512-MB (dual-channel) 512-MB 1-GB (dual-channel) 1-GB 2-GB (dual-channel) 3-GB (dual-channel) 4-GB (dual-channel) Technical Reference Guide www.hp.com 3-5 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 52
Mem. Device 99125 [4] 126 OEM Specific Data Intel frequency check CAS Latencies Supported [4] 127 Reserved CS# Latency [4] 128 - 131 Compaq header "CPQ1" Write Latency [4] 132 Header checksum DIMM Attributes 133 - 145 Unit serial number Memory Device Attributes 146 DIMM ID Min - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 53
locations in memory are cacheable. Base memory is always mapped to DRAM. The next 128 KB fixed memory area can, through the north bridge, be mapped to DRAM or to PCI space. Graphics RAM area is mapped to PCI or AGP locations. Figure 3-3. System Memory Map Technical Reference Guide www.hp.com 3-7 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 54
Processor/Memory Subsystem 3-8 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 55
Support 4.1 Introduction This chapter covers subjects dealing with basic system architecture and covers the following topics: ■ PCI bus overview (4.2), page 4-1 ■ System resources (4.3), page 4-11 ■ Real-time clock and configuration memory this guide. For detailed information on specific components - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 56
Support Memory Audio Cntlr Cntlr Cntlr Bridge Cntlr Function Function Function Function Function NIC Cntlr PCI Express x1 slot [1] PCI 2.3 slot(s) Notes: Only implemented functions are shown. [1] In USDT form factor, accepts reverse-layout SDVO card only. In SFF, ST, MT, and CMT form factors - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 57
to a device on a downstream PCI bus as identified by bus number bits . With three or more PCI buses, a PCI bridge may convert a Type 1 to a Type 0 if it's destined for a device being serviced by that bridge or it may forward the Type 1 cycle unmodified if it is destined for a device being - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 58
Support 2.0 Controller AC97 Audio Controller AC97 Modem Controller Network Interface Controller PCI ---- AD20 AD25 AD27 AD29 NOTES: [1] Function not used in these systems. [2] SFF, ST, & CMT form factors only. [3] CMT form factor with PCI expansion board. 4-4 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 59
Card Bus CIS Pointer Base Address Registers Index FCh 40h 3Ch 38h 34h 30h 2Ch 28h 10h BIST Hdr. T ype Lat. Timer Line Size 0Ch Class Code Revision ID 08h Status Command 04h Device ID Vendor ID 00h 31 24 23 16 15 8 7 0 Device-Specific PCI bus supports a bus Guide www.hp.com 4-5 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 60
Slot 4 REQ4/GNT4 Note [1] [2] [2] NOTE: [1] SFF, ST, MT, and CMT form factors only. [2] CMT form factor with PCI expansion board PCI bus arbitration is based on a round-robin scheme that complies with the fairness algorithm specified by the PCI specification. The bus parking policy allows for the - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 61
Support for receive (Figure 4-4). System Board TX Device A RX PCI Express Card Device B Figure 4-4. PCI Express Bus Lane Each byte is transferred Lane # 0 0 0 0 1 0 1 1 2 0 2 2 3 0 3 3 4 0 0 4 5 0 1 5 6 0 2 6 7 0 3 7 Technical Reference Guide www.hp.com 4-7 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 62
by the physical layer is transparent to the other layers and to software/drivers. The SFF, ST, MT, and CMT form factors provide two PCI Express slots: a PCI Express x16 (16-lane) slot specifically designed for a graphics controller, and a general purpose PCI Express x1 (1-lane) slot. 4.2.3 Option - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 63
4.2.6 PCI Connectors PCI 2.3 Connector A1 System Support A49 A52 A62 B2 B49 B52 B62 Figure 4-5. PCI 2.3 Bus Connector (32-Bit, 5.0-volt Type) Table 4-5. PCI 2.3 AD31 AD30 41 +3.3 VDC SBO- 62 +5 VDC +5 VDC 21 AD29 +3.3 VDC 42 SERR- GND Technical Reference Guide www.hp.com 4-9 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 64
System Support PCI Express Connectors A1 A11 A12 A18 x1 Connector A82 x16 Connector B1 B11 B12 B82 Figure 4-6. PCI Express Bus Connectors Pin PERn11 GND GND PERp12 PERn12 GND GND PERp13 PERn13 GND GND PERp14 PERn14 GND GND PERp15 PERn15 GND 4-10 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 65
System Support the microprocessor by the use of the STI and CLI instructions. A nonmaskable interrupt cannot be masked off within the to determine the source of the interrupt and then services the peripheral as appropriate. Most IRQs are routed through Technical Reference Guide www.hp.com 4-11 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 66
System Support 8259 Mode The 8259 mode handles interrupts IRQ0-IRQ15 in the legacy ( port (COM1) IRQ5 Network interface controller IRQ6 Diskette drive controller IRQ7 Parallel port (LPT1) IRQ2 NOT AVAILABLE (Cascade from interrupt controller 2) 4-12 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 67
using INTA. CMT form factors only. SFF, ST, CMT form factors only. The PCI interrupts can be configured by PCI Configuration Registers 60h..63h to share the standard ISA interrupts (IRQn). ✎ The APIC mode is supported by the Windows NT, Windows 2000, and Windows XP operating systems. Systems - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 68
System Support Maskable Interrupt processing is controlled and monitored non-maskable interrupt signals: the NMI- and the SMI-. These signals have service priority over all maskable interrupts, with the SMI- having top priority over to the microprocessor. 4-14 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 69
System Support The NMI Status Register at I/O port 061h contains NMI source and status data as follows: The SMI- handler works with the APM BIOS to service the SMI- according to the cause of the timeout. Although the SMI- is primarily used for power management the interrupt is also employed for the - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 70
channel 4) configurable to a specific device. Table 4-9 lists the default configuration of the DMA channels. Table 4-9. Default DMA Channel Assignments DMA Channel Device ID Controller 1 (byte transfers) 0 Spare 1 Audio subsystem 2 Diskette drive 3 Parallel port Controller 2 (word - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 71
on each of the 512 row addresses in the DRAM memory space. Refresh operations are used to refresh memory on the 32-bit memory bus and the ISA bus. The refresh address is provided on lines SA00 through SA08. Address lines LA23..17, SA18,19 are driven low. Technical Reference Guide www.hp.com 4-17 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 72
System Support The remaining address lines are in an undefined state during the refresh cycle. The refresh operations are 0C4h 0C6h 0C6h 0C8h 0C8h 0CAh 0CAh 0CCh 0CCh 0CEh 0CEh 0DAh 0D8h 0DAh 0DCh R/W R W W W W W W R W R W R W R W R W R W R W R R W W W 4-18 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 73
is used for maintaining the RTC and configuration memory while the system is powered down. During system operation a wire-Ored circuit allows the RTC and configuration memory to draw power from the power supply. The battery is located in a battery holder on the system board and has a life expectancy - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 74
Hard drive 2, primary controller 33h Miscellaneous flags set by BIOS Hard drive 1, secondary controller 34h International language Hard drive 2, secondary controller 35h APM status flags Enhanced hard drive support 36h ECC POST test single bit Reserved 37h-3Fh Power-on password Power - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 75
system is powered up and the user completes the boot sequence successfully, at which time the bit will be cleared. Through Setup, the user can set this function to be used by Alert-On-LAN and or one of three levels of support for a "cover removed" condition: Technical Reference Guide www.hp.com - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 76
can then be brought back up ("wake-up") by events defined by the ACPI 2.0 specification. The ACPI wake-up events supported by this system are listed as follows: ACPI Wake-Up Event Power Button RTC Alarm Wake On LAN (w/NIC) PME Serial Port Ring USB Keyboard Mouse System Wakes From Suspend or soft - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 77
heatsink assembly. All systems also provide or support an auxiliary chassis fan. All fans are controlled through temperature sensing logic on the system board and/or in the power supply. There are some electrical differences between form factors and between some models, although the overall - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 78
System Support 4.6 Register Map and Miscellaneous Functions This is enabled for primary drive) Parallel Port (LPT1) Graphics Controller Parallel Port (LPT3) Serial Port (COM3) Diskette Drive Controller Primary Addresses IDE include reserved addresses. 4-24 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 79
Support Function Configuration Control Reserved Logical Device (Interface) Select: 00h = Diskette Drive I/F 01h = Reserved 02h = Reserved 03h = Parallel I/F 04h (SID) Revision Logical Device Power Control Logical Device Power Management PLL / Oscillator Control Reserved Guide www.hp.com 4-25 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 80
system events (refer to Table 4-14). ■ Intruder sensing-The battery-backed D-latch logic internal to the SCH5307 is connected to the hood sensor switch to record hood (cover) removal. ■ Hood lock/unlock-Supported on SFF, ST, and CMT form factors, logic internal to the SCH5307 controls the lock bar - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 81
as part of the MultiBay interface. The SFF, ST, MT, and CMT form factors include one 40-pin IDE connector on the system board. The controller can be configured for the following modes of operation: ■ Programmed I/O (PIO) mode-CPU controls drive transactions through standard I/O mapped registers of - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 82
ID 00h 30..3Fh Reserved 09h Programming 80h 40-43h Pri./Sec. IDE Timing 0Ah Sub-Class 01h 44h Slave IDE Timing 0Bh Base Class Code 01h 48h Sync. DMA Control 0Dh Master Latency Timer 00h 4A-4Bh Sync. DMA Timing 0Eh Header Type 00h 54h EIDE I/O Config.Register NOTE - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 83
is supplied through a separate connector. Figure 5-1. 40-Pin IDE (PATA) Connector. ✎ The USDT form factor does not include 40-pin IDE connctor. The IDE interface and hard drive power signals are both a part of the MultiBay interface used on the USDT form factor. Technical Reference Guide www.hp - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 84
DD5 Data Bit 27 IORDY I/O Channel Ready [3] 8 DD10 Data Bit 28 CSEL Cable Select 9 DD4 Data Bit 29 DAK- DMA Acknowledge 10 DD11 Data Bit 30 sync and drive activity (becomes SPSYNC/DACT-) when synchronous drives are connected. 5-4 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 85
to 3.0 Gb/s ■ Reduced wiring (smaller cable assemblies) The SATA interface duplicates most of the (non-Windows) operating systems may require using Setup (F10) for drive configuration. 01h 34h Capabilities pointer 80h 0Bh Base Class Code 01h 3Ch Interrupt Line 00h 0Dh Master Latency Timer - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 86
). Table 5-6. 7-Pin SATA Connector Pinout Pin Description Pin Description 1 Ground 6 RX positive 2 TX positive 7 Ground 3 TX negative A Holding clip 4 Ground B Holding clip 5 RX negative -- -- 5-6 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 87
Drive Interface The diskette drive interface in these systems support one diskette drive connected to either the MultiBay connector (USDT form factor) or to a standard 34-pin diskette drive connector (SFF, ST, MT, and CMT form factors bytes written in series from the CPU to the data register (3F5h/ - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 88
the configuration phase. The diskette drive I/F configuration registers are listed in the following table: Table 5-7. Diskette Drive Interface Configuration Registers Index Address information refer to the SMSC data sheet for the SCH5307 I/O component. 5-8 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 89
Motor 1, 0 enable (active high) DMA enable (active high) Reset (active low) Drive select (00 = Drive 1, 01 = Drive 2, 10 = Reserved, 11 = Tape drive) 3F3h 373h Tape Drive Register (available for compatibility) R/W R R R/W R/W Technical Reference Guide www.hp.com 5-9 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 90
(active high) Reserved Drive 1, 2 busy (active high) Data Rate Select Register (DRSR): Software reset (active high) Low power mode enable (active high) Reserved written data rate value to either DRSR or CCR will be in effect. 5-10 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 91
Input/Output Interfaces 5.3.2 Diskette Drive Connector The SFF, ST, MT, and CMT form factors use a standard 34-pin connector for diskette drives (refer to Figure 5-3 and Table 5-9 for the pinout). Drive power is supplied through a separate connector. ✎ The USDT form factor does not include 34-pin - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 92
be configured for a specific address range (COM1, COM2, etc.) and also must be activated before it can be used. Address selection and activation of the serial interface are affected through the PnP configuration registers of the SCH5307 I/O controller. 5-12 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 93
LSB Interrupt Select Mode Register R/W R/W R/W R/W R/W R/W Serial Interface Control The BIOS function INT 14 provides basic control of the serial interface. The serial interface can be Register 3FEh 2FEh Modem Status R/W R W W W R/W R W R/W R/W R R Technical Reference Guide www.hp.com 5-13 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 94
guide parallel interface supports three submodes) provide complete support as specified for CPU write data is simply presented on the eight data lines. A CPU data while allowing a CPU read to fetch data present and 1.9 are both supported. For the parallel interface CPU accesses with the parallel interface. Address decoding includes - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 95
supported by ECP mode. The ECP mode includes a bi-directional FIFO buffer that can be accessed by the CPU The parallel interface must be configured for a specific address range (LPT1, LPT2, etc.) and also are automatically done by the BIOS during POST but can also Guide www.hp.com 5-15 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 96
Input/Output Interfaces Parallel Interface Control The BIOS function INT 17 provides simplified control of the parallel interface. Basic LPT3 = 3BCh ECP Mode Ports LPT1,2,3 LPT1,2,3 LPT1,2,3 -----LPT1,2,3 LPT1,2,3 LPT1,2,3 LPT1,2,3 LPT1,2,3 LPT1,2,3 5-16 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 97
Feed or Host Acknowledge [3] EPP mode: user defined ECP modes:Fault or Peripheral Req. [4] EPP mode: Reset ECP modes: Initialize or Reverse Req. Technical Reference Guide www.hp.com 5-17 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 98
handles scan code translation and codes from the keyboard. A command can request an action or indicate status. The keyboard interface uses IRQ1 to get the attention of the CPU Figure 5-6. 8042-To-Keyboard Transmission of Code EDh, Timing Diagram Control of the code. If a parity error or timeout occurs, - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 99
Instructs the keyboard to select another set of scan codes power-on default state and halts scanning pending next 8042 command. F6h Resets keyboard to power-on default state and enable scanning. F7h Clears keyboard buffer and sets default scan code set. [1] Technical Reference Guide www.hp - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 100
default scan code set. [1] Set Keys-Make F9h Clears keyboard buffer and sets default scan code set. [1] Set Keys- Typematic/Make/Brake FAh Clears keyboard buffer and sets default scan code set. [1] set by the BIOS during POST but can also be accomplished with the Setup - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 101
BIOS function INT 16 is typically used for controlling interaction with the keyboard. Sub-functions of INT 16 conduct the basic routines of handling keyboard data (i.e., translating the keyboard's scan codes into ASCII codes). The keyboard/pointing device interface is accessed by the CPU CPU CPU - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 102
by the CPU. The 8042 uses IRQ1 for gaining the attention of the CPU. Value 20h 60h A4h A5h A6h A7h A8h Table 5-18. CPU Commands to to port 64h. 2. Write each character of the password in 9-bit scan code (translated) format to port 60h. 3. Write 00h to port 60h. .hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 103
) is generated if enabled. Echo pointing device data. Directs the 8042 to send back to the CPU the next byte written to port 60h as if it originated from the pointing device. An interrupt = don't pulse). Note that pulsing bit will reset the system. Technical Reference Guide www.hp.com 5-23 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 104
Device Interface Connector (as viewed from rear of chassis) Table 5-19. Keyboard/Pointing Device Connector Pinout Pin Signal Description Pin Signal Description 1 DATA Data 4 + 5 VDC Power 2 NC Not Connected 5 CLK Clock 3 GND Ground 6 NC Not Connected 5-24 www - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 105
or modems. This high-speed interface supports hot-plugging of compatible devices, making possible system configuration changes without powering down or even rebooting systems. As 6 Front Panel USB Port 7 USB Port 8 Figure 5-8. USB I/F, Block Diagram Technical Reference Guide www.hp.com 5-25 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 106
. A cyclic redundancy check (CRC) is applied to all packets (except a handshake packet). A packet causing a CRC error is generally completely ignored by the receiver. 5-26 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 107
00h 3Dh Interrupt Pin 03h 09h Programming I/F 00h 60h Serial Bus Release No. 10h 0Ah Sub Class Code 03h C0, C1h USB Leg. Kybd./Ms. Cntrl. 2000h 0Bh Base Class Code 0Ch C4h USB Resume Enable 00h Note: [1] USB 1.1 #1= 24D2h USB 1.1 #2 = 24D4h USB 1.1 #3 = 24D7h USB 1.1 #4 = 24DDh USB - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 108
Connector (Female) Table 5-22. USB Connector Pinout Pin Signal Description Pin Signal 1 Vcc +5 VDC 3 USB+ 2 USB- Data (minus) 4 GND Description Data (plus) Ground 5-28 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 109
/or necessary. The shield, chassis ground, and power ground should be tied together at the host end but left unconnected at the device end to avoid ground loops. Color code Signal Insulation color Data + Green Data - White Vcc Red Ground Black Technical Reference Guide www.hp.com 5-29 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 110
= Separate left and right channels (stereo). L+R = Combined left and right channels (mono). [1] CMT only [2] SSF, ST, MT, and CMT only. On USDT form facter, aux audio is routed through MultiBay interface. Figure 5-11. Audio Subsystem Functional Block Diagram 5-30 www.hp.com Technical Reference - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 111
by the 48-KHz SYNC signal, which is derived from the clock signal and driven by the audio controller. When asserted (typically during a power cycle), the RESET- signal (not shown) will reset all audio registers to their default values. Frame BCLK SYNC Frame Start Tag A Tag B Frame Start SDO - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 112
mixer provides the computer control-console functionality handling multiple audio inputs. Audio Format Mic Audio In CD Audio In Mux REC Gain ADC w/SRC Audio In Line Audio In PC Beep In REC Mux Gain Mux/Gain Line Audio Out PB Gain HP Audio Out PB Gain ADC w/SRC Audio In SDI HD - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 113
01h 40h HD Audio Control 0's 0Bh Base Class Code 04h 44h Traffic Audio Lower Base 4 50-14Fh -HD audio functions [1] Addr. NOTE: Values without "h" suffix (denoting hexidecimal value) are decimal. [1] Refer to Intel data sheet for more information. Technical Reference Guide www.hp - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 114
Set Beep Generator 70Ah Get Volume Knob Widget FOFh Set Converter Format 002h Get GPIO Data F15h Set Volume Knob Widget 70Fh Get Power State F05h Set GPIO Data 715h -- -- NOTE: Refer to vendor data sheet for more information. Get Converter Format 5-34 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 115
Audio Specifications The specifications for the HD Audio subsystem are listed in Table 5-26. Table 5-26. HD Audio Subsystem Specifications 0hms Signal-to-Noise Ratio (input to Line Out) 95 db (nom) Max. Subsystem Power Output to 4-ohm Internal Speaker (with 10% THD): 1.5 watts Gain Step - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 116
The Network Interface Controller includes the following features: ■ VLAN tagging with Windows 2000/XP, and Linux. ■ Multiple VLAN support with Windows 2000/XP. ■ Power management support for ACPI 1.1, PXE 2.0, WOL, ASF 1.0, IPMI ■ Cisco Etherchannel support ■ Link and Activity LED indicator drivers - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 117
Input/Output Interfaces 5.9.1 Wake-On-LAN Support The NIC supports the Wired-for-Management (WfM) standard of Wake-On-LAN (WOL) that allows the system to be booted up from a powered-down or low-power condition upon the detection of special packets received over a network. The NIC receives 3.3 VDC - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 118
mapped in variable I/O space. The BIOS for the BCM5782 is contained within the HP/Compaq BIOS in system ROM. Refer to 4, 7, 8 Description Transmit+ TransmitReceive+ ReceiveNot used Figure 5 15. Ethernet TPE Connector (RJ-45, viewed from card edge) 5-38 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 119
98, and 2000 Professional, XP Home, XP Pro MS Windows NT 3.51 & 4.0 Novell Netware 3.x, 4.x, 5x Novell Netware/IntraNetWare SCO UnixWare 7 Linux 2.2, 2.4 PXE 2.0 Intel PRO/100 Boot Agent (PXE 3.0, RPL) Yes PCI Express x1 ACPI, PCI Power Management Spec. Technical Reference Guide www.hp.com 5-39 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 120
Input/Output Interfaces 5-40 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 121
subsystem employs the use of system memory to provide efficient, economical 2D and 3D performance. The SFF, ST, MT, and CMT form factors may be upgraded by installing a graphics card into the PCI-E or the PCI 2.3 slot. The USDT form factor may be upgraded by installing an ADD2 (reverse layout - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 122
& SDVO Data PCI Expr. I/F SDRAM Controller NOTE: [1] In USDT form factor, accepts reverse-layout SDVO ADD2 card only. In SFF, ST, MT, and CMT form factors, accepts normal-layout cards. DDR2 SDRAM (System Memory) Figure 6-1. 945G-Based Graphics, Block diagram The Integrated Graphics Controller - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 123
SDRAM with the video BIOS set to 8 MB will be reported by MS Windows as having 120 MB. The IGC will use, in standard VGA/SVGA modes, pre-allocated memory as a true dedicated frame buffer. If the system boots with the OS loading the IGC Extreme Graphics drivers, the pre-allocated memory will then be - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 124
IGC supports most standard display modes for 2D video displays up to and including 2048 x 1536 @ 85 Hz , and 3D display modes up to 1600 x 1200 @ 85 Hz. The highest resolution available will be determined by the following factors: ■ Memory speed and amount ■ Single or dual channel memory ■ Number - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 125
installed ). Depending on accessory, upgrading through the PCI Express x16 slot can provide digital monitor support and/or dual-monitor support allowing display-cloning or extended desktop functionality. Software drivers may need to be downloaded for specific cards. ✎ Two SDVO channels are provided - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 126
Monitor Connector These systems includes a standard VGA connector (Figure 6-3) for attaching an analog monitor: 9 Figure 6 3. VGA Monitor Connector, (Female DB-15, as viewed from rear). Pin Signal 1R automatically resets when excessive load is removed. 6-6 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 127
+12 VDC +12 VccP Fan PS On Spd [1] -12 VDC +3.3 VDC +5 VDC +12 VDC Power Supply Assembly Drives NOTE: [1] Not present on CMT. [2] Auto-sensing on USDT, SFF, ST, and CMT. Switch-selectable on MT. Figure 7-1. Power Distribution and Control, Block Diagram Technical Reference Guide www.hp.com 7-1 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 128
unit, a 240-watt power supply for the SFF and ST units, a 300-watt power supply for the MT unit, and a 365-watt power supply for the CMT unit. All power supplies feature active power factor correction (PFC). Tables 7-1 through 7-4 list the specifications of the power supplies. Note that output load - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 129
form factor. Table 7-4. 365-Watt (CMT) Power Supply Assembly Specifications Input Line Voltage: 115-230 VAC (auto-ranging) Line Frequency Input (AC) Current +3.3 VDC Output +5.08 VDC Output +5.08 AUX Output +12 VDC Output +12 VDC Output (Vcpu) -12 VDC Output Range or Tolerance Min. Current Max - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 130
Four Seconds Before Release: If the button is held in for at least four seconds and then released, PS On is negated, de-activating the power supply. 7-4 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 131
to RAM (S3) Processor thermal shut down. Check air flow, fan operation, and CPU heat sink. Processor not installed. Install or reseat CPU. Power failure (power supply is overloaded). Check voltage selector (if applicable), stroage devices, expansion cards and/or system board. Pre-video memory error - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 132
be asserted. Power Management Event A power management event that asserts the PME- signal on the PCI bus can be enabled to cause the power control logic to generate the PS On. Note that the PCI card must be PCI ver. 2.2 compliant to support this function. 7-6 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 133
. Monitor is blanked. G1, S2/3, C2, System on, CPU not executing, D2 (Standby/or cache data lost. Memory is suspend) holding data, display and I/O subsystems on low power. G1, S4, D3 (Hibernation) System off. CPU, memory, and most subsystems shut down. Memory image saved to disk for recall on - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 134
, +5 VDC, +5 VDC STB, +12 VC, and -12 VDC to the system board as well as to the individual drive assemblies. Figure 7-2 shows the power supply cabling for the Ultra Slim Desktop form factor. Power Supply 379350 P2 P3 5 4321 4 P3 6 P2 P1 13 1 3 P1 24 1 12 Conn P1 P1 [1] P2 P3 Pin 1 +5 aux - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 135
ground) sns = sense GND = Power ground RS = Remote sense FC = Fan command FO = Fan off FSpd = Fan speed FS = Fan Sink POK = Power OK (power good) VccP = +12 for CPU [1] This row represents pins 13-24 of connector P1 Figure 7-3. SFF/ST Power Cable Diagram Technical Reference Guide www.hp.com 7-9 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 136
7-4 shows the power supply cabling for the microtower systems. Power Supply 385576 P4 P9 Power ground RS = Remote sense POK = Power ok (power good) FC = Fan Command [1] This row represents pins 13-24 of connector P1. Figure 7-4. MT Power Cable Diagram 7-10 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 137
7-5 shows the power supply cabling for the convertible minitower systems. Power Supply 379294 P9 P10 Power ground RS = Remote sense POK = Power ok (power good) FC = Fan Command [1] This row represents pins 13-24 of connector P1. Figure 7-5. CMT Power Cable Diagram Technical Reference Guide www.hp - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 138
are produced through regulator circuitry (Figure 7-6) on the system board. Power Supply CPU 12 VDC PS 5 VDC PS Regulator Circuit VccP 5 VDC PS , SIO, Audio, FWH logic Chipset DAC Chipset Processor Chipset Figure 7-6. Low Voltage Supply and Distribution Diagram 7-12 www.hp.com Technical - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 139
P3 +3.3, +5, +5 Aux, +12 VDC P1 PS On, POK Power Supply Assembly System Board 376335-001 SATA I/F P60 IDE I/F., Diskette I/F., CD Audio P21 Kybd data J66 Mouse data J67 Mic In, HP Out Audio P23 USB 6,7 Tx/Rx P24 SATA Hard Drive MultiBay Daughter Board Keyboard Mouse Front Panel I/O Module CD - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 140
I/F P60 IDE I/F P20 SATA Hard Drive CD-ROM Kybd data J66 J67 P23 Mouse data Mic In, HP Out Audio USB 6,7 Tx/Rx P24 Keyboard Mouse Front Panel I/O Module NOTES: See Figure 7-7 for header pinout. Figure 7-8. SFF / ST Form Factor Signal Distribution Diagram 7-14 www.hp.com Technical Reference - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 141
P1 PS On, POK Power Supply Assembly Diskette I/F P10 Diskette System Board 375374-001 SATA I/F P60 IDE I/F. P20 SATA Hard Drive CD-ROM Kybd data J68 Mouse data Mic In, HP Out Audio P23 USB 6,7 Tx/Rx P24 J30 PCI 2.3 I/F PCI Expansion Daughter Board [1] NOTE: [1] CMT form factor only. Keyboard - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 142
and Signal Distribution Power Button/LED, HD LED Header P5 (USDT, SFF, ST) HD LED Cathode 1 HD LED Anode 3 GND5 Chassis ID0 9 GND 11 Therm Diode A 13 2 PS LED Cathode 4 PS LED Anode 6 Pwr Btn 8 GND 10 Chassis ID1 12 NC 14 Therm Diode C Aux Audio CD RHOeaMdeAr uPd11io Header 1 Audio (Left Channel - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 143
as Power-On Self Test (POST), PCI device initialization, Plug 'n Play support, power management activities, and the Setup utility. The firmware contained in the BIOS ROM supports the following operating systems and specifications: ■ DOS 6.2 ■ Windows 3.1, 95, 98SE, 2000, XP Professional, and XP Home - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 144
may be necessary if changes are made to the unit's operating system, hard drive, or processor. All BIOS ROM upgrades are available directly from HP. Flashing is done either locally thrugh F10 setup, the HPQFlash program in a Windows environment, or with the FLASHBIN.EXE utility in a DOS or DOS-like - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 145
occur during the Power On Self-Test (POST) routine. 8.3.1 Boot Device Order The default boot device order is as follows: 1. IDE CD-ROM drive (EL Torito CD images) 2. Diskette drive (A:) 3. MultiBay device (A: or CD-ROM) if applicable 4. USB device 5. Hard drive (C:) 6. Network interface controller - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 146
and DIMM data specific to this system. The BIOS performs memory detection and configuration with the following steps: 1. Program the buffer strength control registers based on SPD data and the DIMM slots that are populated. 2. Determine the common CAS latency that can be supported by the DIMMs - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 147
graphics card. 7 beeps PCA failure. Check/replace system board. 8 beeps Invalid ROM (checksum error). Reflash ROM using CD or replace system board. 9 beeps System powers on but fails to boot. Check power supply, CPU, system board. None Bad option card. Technical Reference Guide www.hp.com - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 148
computer's power memory size/speed, number of channels (single or dual Allows user to update the BIOS image from to emulate a diskette drive). Restore from Removable Support for specific Computer Setup options may vary depending on the hardware configuration. 8-6 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 149
is not compatible with the translation mode that was active when the disk was partitioned and formatted, the data on the disk will be inaccessible. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com 8-7 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 150
is not compatible with the translation mode that was active when the disk was partitioned and formatted, the data on the disk will be inaccessible. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 8-8 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 151
. Use this option with Microsoft Windows 98 and earlier operating systems. • PATA Primary Device 0 replaces SATA 1 • PATA Primary Device 1 replaces SATA 3 ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com 8-9 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 152
plug and play settings under Windows. See the Troubleshooting Guide on the Documentation CD for more information. Power-On Password Allows you to set and enable power-on password. See the Troubleshooting Guide for more information. ✎ Support for specific Computer Setup options may vary depending - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 153
normally set in the factory and are used to uniquely identify the system.) • Keyboard locale setting (for example, English or German) for System ID entry. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com 8-11 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 154
management enables or disables SATA bus and/or device power management. Thermal Fan idle mode - This bar graph controls the minimum permitted fan speed. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 8-12 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 155
will allow Microsoft Windows Operating Systems to run optimally. This feature must be disabled for certain non-Microsoft Operating Systems to work properly. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com 8-13 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 156
PCI VGA palette snooping, which sets the VGA palette snooping bit in PCI configuration space; only needed when more than one graphics controller is installed. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 8-14 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 157
only if there are multiple PCI video adapters in the system. Allows you to specify which VGA controller will be the "boot" or primary VGA controller. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com 8-15 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 158
Table 8-3 provides a partial list of the client management BIOS functions supported by the systems covered in this guide. These functions, designed to support intelligent manageability applications, are Compaq-specific unless otherwise indicated. Table 8-3. Client Management Functions (INT15 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 159
Table 8-4 System ID System (Form Factor) System ID USDT 09FCh SFF/ST: 09F8h uT: 09F4h CMT: 09F0h NOTE: All systems use BIOS ROM Family 786D1 and have a PnP ID of CPQ0968. The ROM family and version numbers can be verified with the Setup utility or the Compaq Insight Manager or Diagnostics - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 160
the data from the device and convert it to PS/2 data. The data will be passed to the keyboard controller and processed as in the PS/2 interface. Changing the delay and/or typematic rate of a USB keyboard though BIOS function INT 16 is not supported. 8-18 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 161
. Blinks red 8 times @ 1 Hz Invalid ROM (checksum error). Reflash ROM using CD or replace system board. Blinks red 9 times @ 1 Hz System powers on but fails to boot. Check power supply, CPU, system board. Blinks red 10 times @ 1 Hz Bad option card. Technical Reference Guide www.hp.com A-1 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 162
. 213-Incompatible Memory Module BIOS detected installed DIMM(s) as being not compatible. 214-DIM Configuration Warning A specific error has occurred in a memory device installed in the identified socket. 216-Memory Size Exceeds Max Installed memory exceeds the maximum supported by the system - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 163
and Codes Table A-2. (Continued) Power-On Self Test (POST) Messages Error Message Probable Cause 512-Chassis Fan Not Detected Chassis fan is not connected. 514-CPU or Chassis Fan not detected. CPU fan is not connected or may have malfunctioned. 601-Diskette Controller Error Diskette drive - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 164
Codes Table A-2. (Continued) Power-On Self Test (POST) Messages Error Message Probable Cause 1801-Microcode Patch Error A processor is installed for which the BIOS ROM has no patch. Check for ROM update. Invalid Electronic Serial Number Electronic serial number has become corrupted. Network - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 165
failed 107-01 CMOS RAM test failed 162-xx Sys. options failed (mismatch in drive type) 108-02 code may be caused by one of a variety of processor-related problems that may be solved by replacing the processor, although system board replacement may be needed. Technical Reference Guide www.hp - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 166
while restoring block in walking I/O test Increment pattern test failed ECC failure Memory increment pattern test Error while saving memory during increment pattern test Error while restoring memory during increment pattern test Memory random pattern test A-6 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 167
, 8042 self-test failed 304-04 No Make code observed 303-02 LED test, reset test failed 304-05 Cannot /disable repeat key feature 303-03 LED test, reset failed 304-06 Unable to return to Normal mode 303-04 LED test, LED command test failed -- -- Technical Reference Guide www.hp.com - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 168
Error Messages and Codes A.7 Printer Error Messages (4xx- 01 640x200 mode test failed 504-01 Video character set test failed 511-01 Screen memory page test failed 505-01 80x25 mode, 9x14 cell test failed 512-01 Gray scale video (graphics) messages. A-8 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 169
error limit 6xx-21 Failed to get change line status 6xx-03 Previously exceeded max soft limit 6xx-22 Failed to clear change line status 6xx-04 Previously exceeded max hard limit 6xx-23 Failed to set drive type in ID media 6xx-05 Failed to reset controller 6xx-24 Failed to read diskette - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 170
Error Messages and Codes A.10 Serial Interface Error Messages (11xx-xx) Table A-9. Serial Interface Error Messages Message Probable Cause Message Probable address conflict 1101-12 DRVR/RCVR cntrl. signal failure 1155-xx COM port address conflict A-10 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 171
Error Messages and Codes A.11 Modem Communications Error Messages (12xx-xx) Table A-10. Modem Communications Error Messages Message Probable Cause Tone detection failure 1202-12 Time-out waiting for response [2] 1210-XX Modem direct connect test Technical Reference Guide www.hp.com A-11 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 172
Error Messages and Codes Table A-10. (Continued) Modem Communications Error Messages Message Probable Cause Message Probable Cause 1202-13 Data block -xx 1611-xx Table A-11 System Status Error Messages Probable Cause Temperature violation Fan failure A-12 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 173
Codes A.13 Hard Drive Error Messages (17xx-xx) Table A-12 Hard Drive Error Messages Message Probable Cause Message Probable Cause 17xx-01 Exceeded max. soft error limit 17xx-51 Failed I/O read test 17xx-02 Exceeded max. Hard 17xx-48 Failed to move hard drive table to RAM 17xx-72 Bad track - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 174
Error Messages and Codes NOTE: xx = 00, Hard drive ID test xx = 19, Hard drive power mode test xx = 01, Hard drive format test xx = 20, SMART drive detects imminent failure xx = 02, Hard drive read test xx = 21, SCSI hard drive imminent failure xx = 03, Hard drive read/write compare test xx - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 175
18 Hard error limit exceeded 19xx-39 Data mismatch on track 0 19xx-19 Write (probably ID ) error 19xx-40 Failed self-test 19xx-20 NEC fatal error 19xx-91 Power lost during test 1900-xx = Tape ID test failed 1901-xx = Tape servo write failed 1902-xx = Tape format failed 1903-xx = Tape drive - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 176
Probable Cause Video memory test failed 2418-02 EGA shadow RAM test failed Video attribute memory test failed 2480-xx AVGA linedraw test failed A.16 Audio Error Messages (3206-xx) Message 3206-xx Table A-15 Audio Error Messages Probable Cause Audio subsystem internal error A-16 www.hp - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 177
and Codes A.17 DVD/CD-ROM Error Messages (33xx-xx) Message 3301-xx 3305-xx Table A-16 DVD/CD-ROM Error Messages Probable Cause Drive test failed Seek test failed A.18 Network Interface Error Messages (60xx-xx) Message 6000-xx 6014-xx 6016-xx 6028-xx 6029-xx Table A-17 Network Interface - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 178
Controller/drive not connected 6nyy-99 Autoloader reported tape not loaded properly n = 5, Hard drive = 6, CD-ROM drive = 7, Tape drive yy = 00, ID = 03, Power check = 05, Read = 06, SA/Media = 08, Controller = 23, Random read = 28, Media load/unload A-18 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 179
Error Messages and Codes A.20 Pointing Device Interface Error Messages (8601-xx) Message 8601-01 8601-02 8601-03 8601-04 8601-05 8601 device is inoperative Right mouse button is stuck closed 8602-xx I/F test failed Left block not selected -- -- Technical Reference Guide www.hp.com A-19 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 180
Error Messages and Codes A-20 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 181
B.1 Introduction This appendix lists, in Table B-1, the 256-character ASCII code set including the decimal and hexadecimal values. All ASCII symbols may be P 112 70 17 11 3 49 31 1 81 51 Q 113 71 Symbol ' a b c d e f g h I j k l m n o p q Technical Reference Guide www.hp.com B-1 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 182
8E Ä 174 AE « 206 CE 238 EE 143 8F Å 175 AF » 207 CF 239 EF 144 90 É 176 B0 208 D0 240 F0 Symbol r s t u v w x y z { | } ~ [1] ß µ B-2 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 183
9F ƒ 191 BF 223 DF 255 FF Symbol ± ÷ ° · · ² Blank NOTES: [1] Symbol not displayed. Keystroke Guide: Dec # Keystroke(s) 0 Ctrl 2 1-26 Ctrl A thru Z respectively 27 Ctrl [ 28 Ctrl 29 Ctrl ] 30 and decimal digit(s) of desired character Technical Reference Guide www.hp.com B-3 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 184
ASCII Character Set B-4 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 185
-version keyboard featuring additional keys for specific support of the Windows operating system. ■ Easy Access keyboard with additional buttons for internet accessibility functions. Only one type of keyboard is supplied with each system. Other types may be available as an option. ✎ This appendix - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 186
in an overrun condition and the overrun code replaces the scan code byte and any additional scan code data (and the respective key strokes) are lost. Multi-byte sequences must fit entirely into the buffer before the respective keystroke can be registered. C-2 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 187
of the system unit responds to scan code reception by asserting IRQ1, which is processed by the interrupt logic and serviced by the CPU with an interrupt service routine. The service routine takes the appropriate action based on which key was pressed. Technical Reference Guide www.hp.com C-3 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 188
keyboard) to comply with the USB I/F specification (discussed in chapter 5 of this guide). Packets received at the system's USB I/F key layouts for keyboards shipped with HPsystems. Actual styling details including location of the HP logo as well as the numbers lock, caps lock, and scroll lock LEDs - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 189
98 99 35 36 37 38 55 56 57 72 73 74 58 88 89 90 100 101 91 Figure C-5. U.S. English Windows (101W-Key) Keyboard Key Positions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 88 89 90 100 101 91 Figure C-6. National Windows (102W-Key) Keyboard Key Positions Technical Reference Guide www.hp.com C-5 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 190
Easy Access Keyboard The Easy Access keyboard is a Windows Enhanced-type keyboard that includes special buttons allowing quick 6 Btn 7 Btn 8 ✎ Main key positions same as Windows Enhanced (Figures C-5 or C-6). Figure C-7. 8-Button Easy Access Keyboard Layout C-6 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 191
code BIOS. Typematic keys, when held down longer than 500 ms, send the Make code and released, invokes a BIOS routine that turns on and released, invokes a BIOS routine that turns on the that require specific support by the application This keystroke is always serviced by the BIOS (as indicated by BIOS - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 192
handled by the BIOS. C.2.4.3 Windows Keystrokes Windows-enhanced keyboards include three additional key positions. Key positions 110 and 111 (marked with the Windows logo ) have the same functionality and are used by themselves or in combination with other keys to perform specific "hot-key" type - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 193
Industry specification info 6 Market Monitor Launches Bloomberg market monitor 7 Meeting Center Links to user's project center 8 News/PC Lock News retrieval service All buttons may be re-programmed by the user through the Easy Access utility. Technical Reference Guide www.hp.com - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 194
Keyboard Commands Table C-1 lists the commands that the keyboard can send to the system (specifically, to the 8042-type logic). Command Table C-1. Keyboard-to-System Commands Value Description two IDS bytes. Note: [1] Modes 2 and 3. [2] Mode 1 only. C-10 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 195
for keyboard operation. In this mode, the 8042 logic translates the make codes from the keyboard processor into the codes required by the BIOS. This mode was made necessary with the development of the Enhanced III keyboard 13 F12 58/D8 07/F0 07 5E/na Technical Reference Guide www.hp.com C-11 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 196
Keyboard Table C-2. (Continued) Keyboard Scan Codes Key Pos. Legend Mode 1 Make/Break Codes (Hex) Mode 2 Mode 3 14 Print Scrn E0 2A E0 37/E0 B7 E0 AA E0 2A E0 7C/E0 F0 7C E0 7D E0 12 [5] E0 2A E0 49/E0 C9 E0 AA [6] E0 12 E0 7D/E0 F0 7D E0 F0 12 [6] C-12 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 197
Keyboard Table C-2. (Continued) Keyboard Scan Codes Key Pos. Legend Mode 1 Make/Break Codes (Hex) Mode 2 Mode 3 35 Num Lock 45/C5 77/F0 77 76/na 36 / E0 35 /na [6] 56 8 48/C8 [6] 75/F0 75 [6] 75/na [6] 57 9 49/C9 [6] 7D/F0 7D [6] 7D/na [6] Technical Reference Guide www.hp.com C-13 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 198
31/B1 82 M 32/B2 83 , 33/B3 84 . 34/B4 Table C-2. (Continued) Keyboard Scan Codes Make/Break Codes (Hex) Mode 2 79/F0 79 [6] 58/F0 58 1C/F0 1C 1B/F0 1B 23/F0 23 32 31/F0 31 3A/F0 3A 41/F0 41 49/F0 49 C-14 www.hp.com Mode 3 7C/F0 7C 14/F0 14 1C/F0 1C 1B/F0 1B /F0 49 Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 199
Keyboard Table C-2. (Continued) Keyboard Scan Codes Key Pos. Legend Mode 1 Make/Break Codes (Hex) Mode 2 Mode 3 85 / 35/B5 4A/F0 4A 4A/F0 4A 86 Shift (right) 36/B6 59/F0 59 59/ 103 na 2B/AB 5D/F0 5D 53/F0 53 104 na 36/D6 61/F0 61 13/F0 13 Technical Reference Guide www.hp.com C-15 - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 200
for B6/36 codes. [5] Left Shift key active. For active right Shift key, substitute F0 12/12 make/break codes for F0 59/59 codes. [6] Num Lock key active. [7] Windows keyboards only. [8] 7-Button Easy Access keyboard. [9] 8-Button Easy Access keyboard. C-16 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 201
but may also support simultaneous connection of a USB keyboard. Systems that do not provide a PS/2 interface will ship with a USB keyboard. For a detailed description of the PS/2 and USB interfaces refer to Chapter 5 "Input/Output" of this guide. The keyboard cable connectors and their pinouts - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 202
Keyboard C-18 www.hp.com Technical Reference Guide - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 203
4-13 audible (beep) indications 4-23 audio codec 5-32 Audio Specifications 5-35 B beep indications 4-23 BIOS upgrading 8-2 boot device order 8-3 Boot Error Codes 8-5 C CMOS 4-19 CMOS, clearing 4-9 Computer Setup 8-6 configuration memory 4-19 D Direct Memory Access (DMA) 4-16 Diskette Drive Connector - Compaq DC7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 204
8-18 SPD address map 3-6 specifications physical 2-26 system ID 8-17 T Temperature Status 8-17 U Universal Serial Bus (USB) interface 5-25 upgrading BIOS 8-2 upgrading graphics 6-5 USB 5-25 V VGA connector 6-6 W Web sites Adobe Systems, Inc. 1-1 HP 1-1 Intel Corporation 1-1 Standard Microsystems
Technical Reference Guide
HP Compaq dx7200 and dc7600 Series
Business Desktop Computers
Document Part Number: 391758-001
January 2005
This document provides information on the design, architecture, function,
and capabilities of the HP Compaq dx7200 and dc7600 Series Business
Desktop Computers. This information may be used by engineers,
technicians, administrators, or anyone needing detailed information on
the products covered.