HP Dc7600 HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference
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- HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 2
Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft, MS-DOS, Windows, and Windows . Technical Reference Guide HP Compaq dx7200 and dc7600Series Business Desktop Computers First Edition (May 2005) Document Part Number: 391758-001 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 4
Support 4-8 4.2.6 PCI Connectors 4-9 4.3 System Resources 4-11 4.3.1 Interrupts 4-11 4.3.2 Direct Memory Access 4-16 4.4 Real-Time Clock and Configuration Memory 4-19 4.4.1 Clearing CMOS 4-19 4.4.2 Standard CMOS Parallel Interface Programming 5-15 6 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 5
Support 5-37 5.9.3 Power Management Support 5-37 5.9.4 NIC Programming 5-38 5.9.5 NIC Connector 5-38 5.9.6 NIC Specifications 5-39 6 Integrated Graphics Subsystem 6.1 Introduction 6-1 6.2 Functional Description 6-2 6.3 Display Modes 6-4 6.4 Upgrading Technical Reference Guide www.hp.com 7 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 7
1 Introduction 1.1 About this Guide This guide provides technical information about HP Compaq dx7200 and dc7600 series personal computers that feature the Intel Pentium 4 processor and the Intel 945G chipset. This document describes in detail the system's design and operation for programmers, - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 9
number is also written into firmware and may be read with HP Diagnostics or Insight Manager utilities. 1.5 Notational Conventions The notational guidelines used in this guide and Usage This guide uses standard Intel naming conventions in discussing the microprocessor's (CPU) internal registers. - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 10
modem commands) 2. 286-based PC architecture ATA AT attachment (IDE protocol) ATAPI ATA w/packet interface extensions AVI audio-video interleaved AVGA Advanced VGA AWG American Wire Gauge (specification) BAT Basic assurance test BCD binary-coded decimal BIOS basic input/output system - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 12
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 interrupt request industry standard architecture www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 13
PAL PATA Technical Reference Guide Introduction Table 1-1 display 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 15
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 standard parallel port static RAM - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 18
/100/1000Base T support ■ Plug 'n Play compatible (with ESCD support) ■ Intelligent Manageability support ■ Energy Star compliant ■ Security features including: ❏ Flash ROM Boot Block ❏ Diskette drive disable, boot disable, write protect ❏ Power-on password ❏ Administrator password ❏ Serial/parallel - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 19
different PC series based on form factor: Table 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 20
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-type - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 21
2.3.1 Cabinet Layouts Front Views 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 23
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 drive activity - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 24
panel components of the microtower (uT) 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 USB ports 7, 8 Item 7 8 9 10 11 12 Figure 2-5. HP Compaq dx7200 MT Front View Decription CD - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 27
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 card cage Processor - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 28
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 sockets ■ Two configuration available: ❏ Without card cage - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 29
Figure 2-9 shows the layout for the Microtower (MT) chassis used for the HP Compaq dx7200 models. Features include layout SDVO slot [1] Chassis fan -- -- NOTE: [1] Accepts PCI-E graphics or normal-layout ADD2 card. Figure 2-9. MT Chassis Layout, Left Side View Technical Reference Guide www.hp - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 30
Overview Convertible Minitower Figure 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 31
is a custom board specifically designed for that particular form factor. 12 345 6 7 8 p o i 9 u y - t r e wq Item 1 Description Hood sense header 2 Serial port option header 3 Parallel port option header 4 CMOS clear button 5 SATA #0 header 6 Password clear jumper header 7 PCI - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 32
Serial port B header CMOS clear button SATA #0 header (dark blue) SATA #1 header (white) Password clear jumper PCI Express x1 slot PCI Express x16 graphics/reversed-layout SDVO slot PCI 2.3 slots Power supply (VccP) connector Processor socket Processor fan connector Chassis fan conenctor Item 13 14 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 33
PCI 2.3 slots Battery PCI Express x1 slot PCI Express x16 graphics/normal-layout SDVO slot Chassis fan header Power supply Password clear jumper header 20 Power LED/button, HD LED header 21 CMOS clear switch 22 SATA #1 connector (white) 23 Internal speaker connector 24 Auxiliary audio - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 34
ATA (SATA) hard drive. The USDT models feature support for a MultiBay device through a legacy parallel ATA 100 interface. Table 2-3 lists the differences between models. Table 2-3. Architectural Differences By Form Factor Model USDT SFF ST MT Memory sockets 3 4 4 4 Graphics upgrade PCI - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 35
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, Block diagram Technical Reference Guide www.hp.com - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 36
instructions. form factors. Always use the same assembly or one of the same type when replacing the processor. Refer to the applicable Service Reference Guide for detailed removal and replacement procedures of the heatsink/fan assembly and the processor. 2-20 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 37
of a Graphics Memory Controller Hub (GMCH SATA and PATA 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: [1] Or equivalent component. Technical Reference Guide www.hp - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 38
three DIMM sockets supporting up to 3 GB of memory while all other form factors provide four DIMM sockets and support a total of four gigabytes of memory. ✎ The maximum memory amounts stated above are with 1-GB memory modules using 1-Gb technology DIMMs. 2-22 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 on the rear panel. Technical Reference Guide www.hp.com 2-23 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 40
Express Memory Amount Memory Type 8 MB pre-allocated DVMT 3.0 DAC Speed 400 MHz Maximum 2D Res. Software Compatibility Outputs 2048x1536 @ 85 Hz Quick Draw, DirectX 9.0, Direct Draw, Direct Show, Open GL 1.4, MPEG 1-2, Indeo 1 RGB The graphics subsystem of all form factors supports upgrading - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 41
or SFF MT CMT 200 watts 240 watts 300 watts 365 watts 4 A @ 100 VAC 5 A @ 100 VAC 5.4 A @ 100 VAC 6 A @ 100 VAC . International 100-240 VAC 90-264 VAC 50-60 Hz 47-63 Hz 200 watts 240 watts 300 watts 365 watts 2 A @ 200 VAC 2.5 A @ 200 VAC 2.7 A @ 200 VAC 3.0 A @ 200 VAC Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 42
System Overview Table 2-9 Physical Specifications Parameter USDT ST SFF MT CMT [3] Height 2.95 in (7.49 cm) 13.3 in 3.95 in device installed. [3] Minitower configuration. For desktop configuration, swap Height and Width dimensions. [4] Applicable to unit in desktop orientation only and - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 43
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 Track: High Density 18 Low Density 9 Tracks per Side: High Density 80 Low Density 80 Read/Write Heads 2 Average Access Time: Track - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 44
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 ms 0.7 Vrms 128 KB - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 45
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 SATA 300 Gb/s Yes 0.8 ms 9 ms 17 ms 320,173,056 7200 RPM SMART III Technical Reference Guide www.hp.com 2-29 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 46
System Overview 2-30 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 49
, such a condition could still result in damage to the processor component. Refer to the applicable Service Reference Guide for processor installation instructions. Ä CAUTION: Installing a processor that is not supported by the system board may cause damage to the system board and/or the processor - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 51
Subsystem Table 3-1 shows suggested memory configurations for these systems. NOTE: Table 3-1 does not 1-GB none 1-GB 1-GB 1-GB none 1-GB 1-GB 1-GB 1-GB NOTE: [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- - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 52
[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. CLK Cycle Time at CL - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 54
Processor/Memory Subsystem 3-8 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 56
LPC HD 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, accepts - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 57
. A Type 1 cycle is targeted 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 58
Support Table 4-1 shows the standard configuration of device numbers USB 2.0 Controller AC97 Audio Controller AC97 Modem 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 bus. Technical Reference Guide www.hp.com 4-5 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 61
System Board TX Device A RX PCI Express Card Device B Figure 4-4. PCI Express Bus Lane two PCI Express devices will negotiate for the number of lanes available and the speed the 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 66
number) is processed first. Priority 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -- Table 4-7. Maskable Interrupt Priorities and Assignments Signal Label Source (Typical) IRQ0 Interval timer 1, counter 0 IRQ1 Keyboard IRQ8- Real-time clock IRQ9 Unused IRQ10 PCI devices/slots IRQ11 Audio - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 68
System Support Maskable signals: the NMI- and the SMI-. These signals have service priority over all maskable interrupts, with the SMI- having top following actions: ■ Parity errors detected on a PCI bus (activating SERR- or PERR-). ■ Microprocessor internal error (activating IERRA or IERRB) - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 69
's SMI handler. 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 QuickLock/QuickBlank functions as well. Technical Reference Guide www.hp.com 4-15 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 70
with memory, freeing the CPU for other processing tasks. ✎ This section describes DMA in general. For detailed information regarding DMA operation, refer to the data manual for the Intel 82801 I/O Controller Hub. The 82801 ICH8 component includes the equivalent of two 8237 DMA controllers - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 72
System Support The Reset Mask Register (Command) 00Eh Controller 2 0D0h 0D0h 0D6h 0D4h 0DEh 0D2h 0C0h 0C0h 0C2h 0C2h 0C4h 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 73
Support 4.4 Real-Time Clock and Configuration Memory The Real-time clock (RTC) and configuration memory (also referred to as "CMOS") functions are provided by the 82801 component and is MC146818-compatible. As shown in the following figure, the 82801 ICH8 component provides 256 bytes of battery - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 74
17h 18h 19h 1Ah 1Bh 1Ch 1Dh 1Eh 1Fh Table 4-12. Configuration Memory (CMOS) Map Function Location Function Real-time clock 24h System board ID Diagnostic status 25h System architecture data System reset code 26h Auxiliary peripheral configuration Diskette drive type 27h Speed control - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 75
of the 82801 component. The battery-backed logic will record this "intrusion" event by setting a specific bit. This bit will remain set (even if the cover is replaced) until the system is powered up and the user completes the boot sequence successfully, at which time the bit will be cleared. Through - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 76
the "The computer's cover has been removed since the last system start up" message is displayed, time stamp in CMOS is updated, and the user is prompted for the administrator password. (A Setup password must be enabled in order to see this option). Smart Cover Lock (Optional) Some systems support an - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 77
Invalid ROM checksum error Blinks red 8 times @ I Hz [1] 8 [2] Reflash BIOS ROM Boot failure (after power on) Blinks red 9 times @ I Hz [1] 9 [2] Check power supply, processor, sys. bd Bad option card Blinks red 10 times @ I Hz [1] None Replace option card NOTES: Beeps are repeated for - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 78
System Support 4.6 Register Map Reset Generator DMA Controller Interrupt Controller 2 APM Control/Status Ports Interrupt Controller DMA Controller 2 Coprocessor error Port (LPT3) PCI Configuration Address (dword access only ) Reset Control Register PCI Configuration Data (byte, word, or dword access - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 79
System Support 4.6.2 SCH5307 I/O Controller these systems, hardware strapping selects I/O addresses 02Eh and 02Fh at reset as the Index/Data ports for accessing the logical devices within the (Low Byte) Configuration Address (High Byte) Reserved Reset Value 00h 00h 56h -- 00h 00h 04h NOTE: - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 80
) removal. ■ Hood lock/unlock-Supported on SFF, ST, and CMT form factors, logic internal to the SCH5307 controls reset through a cold boot is required to gain access to the disabling (Device Disable) register. ■ Processor present/speed detection-One of the battery hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 81
specifically Audio subsystem (5.8), page 5-30 ■ Network interface controller (5.9), page 5-36 5.2 PATA/SATA 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 82
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: [1] ICH8 = 244Bh; ICH8 = 24CBh Reset Value 0's 1 0000h 0000h 0's 0's 00h 00h 0000h 00h 5-2 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 83
should not be written to. IDE (PATA) Connector The SFF, ST, MT, and CMT form factors provide a standard 40-pin connector for a primary IDE 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 84
Interfaces Table 5-3. 40-Pin IDE (PATA) Connector Pinout Pin Signal Description Pin Signal Description 1 RESET- Reset 21 DRQ DMA Request 2 GND Ground 22 GND Ground 3 DD7 Data Bit 23 IOW- SPSYNC/DACT-) when synchronous drives are connected. 5-4 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 85
8Ah 2E, 2Fh Subsystem ID 0000h 0Ah Sub-Class 01h 34h Capabilities pointer 80h 0Bh Base Class Code 01h 3Ch Interrupt Line 00h 0Dh Master Latency Timer 00h 3Dh Interrupt Pin 01h 0Eh Header Type 00h 40-57h Timing, Control All 0's Technical Reference Guide www.hp.com 5-5 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 86
7-Pin SATA Connector (on system board). 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 87
connector (SFF, ST, MT, and CMT form factors). Selected models come standard with a 3.5-inch 1.44-MB diskette drive installed as drive A. The diskette drive interface function is integrated into the SCH5307 super I/O component. The internal logic of the I/O controller is software-compatible with - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 88
table: Table 5-7. Diskette Drive Interface Configuration Registers Index Address Function R/W Reset Value 30h Activate R/W 01h 60-61h Base Address R/W 03F0h 70h Interrupt information refer to the SMSC data sheet for the SCH5307 I/O component. 5-8 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 90
execution (active high) Command busy (active high) Reserved Drive 1, 2 busy (active high) Data Rate Select Register (DRSR): Software reset (active high) Low power written data rate value to either DRSR or CCR will be in effect. 5-10 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 91
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 34 DSK CHG- Drive door opened indicator Technical Reference Guide www.hp.com 5-11 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 92
covered in this guide may include one SCH5307 I/O controller component that includes two NS16C550-compatible UARTs. The UART supports the standard baud rates up through 115200, and cable between the DTE (computer) and DCE (modem) should be followed to minimize transmission errors. Higher baud rates - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 94
coupled to EPP timing. A watchdog timer is used to prevent system lockup. Five additional registers are available in EPP mode to handle 16- and 32-bit CPU accesses with the parallel interface. Address decoding includes address lines A0, A1, and A2. 5-14 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 95
supported by ECP mode. The ECP mode includes a bi-directional FIFO buffer that can be accessed by the CPU using DMA or programmed I/O. For the parallel interface to be initialized for ECP mode, a negotiation phase is entered to detect whether or not the connected peripheral is compatible BIOS Reset - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 96
The BIOS function INT 17 provides simplified control of the parallel interface. Basic functions such as initialization, character printing, and printer status are provide by subfunctions of INT 17. The parallel interface is controllable by software through a set of I/O mapped registers. The number - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 97
9 D7 Data 7 22 GND Ground 10 ACK- Acknowledge / Interrupt [1] 23 GND Ground 11 BSY Busy / Wait [1] 24 GND Ground 12 PE Paper End / User defined [1] 25 GND Ground 13 SLCT Peripheral Req. [4] EPP mode: Reset ECP modes: Initialize or Reverse Req. Technical Reference Guide www.hp.com 5-17 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 98
component, which integrates 8042-compatible keyboard controller logic (hereafter referred to as simply the "8042") to communicate with the keyboard and pointing device using bi-directional serial data transfers. The 8042 handles scan code translation and password lock protection for the keyboard - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 99
and begin key scanning. F5h Resets keyboard to 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.com 5-19 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 100
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 8042 detected error in keyboard transmission. Reset FFh Resets program, runs BIOS during POST but can also be - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 101
codes into ASCII codes). The keyboard/pointing device interface is accessed by the CPU through I/O mapped ports 60h and 64h, which provide the following functions: ■ Output buffer reads ■ Input buffer writes ■ Status reads ■ Command writes Ports 60h and 64h can be accessed using the IN instruction - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 102
write). 0 = Data 1 = Command 2 General Purpose Flag. 1 Input Buffer Full. Set (to 1) upon a CPU write. Cleared by IN A, DBB instruction. 0 Output Buffer Full (if set). Cleared by a CPU read of the buffer. A CPU write to I/O port 64h places a command value into the input buffer and sets the CMD/DATA - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 (0 = pulse, 1 = don't pulse). Note that pulsing bit will reset the system. Technical Reference Guide www.hp.com 5-23 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 104
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.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 105
data transfers with compatible peripherals such as keyboards, printers, or modems. This high-speed interface supports hot-plugging of compatible devices, making possible Port 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 106
, in which a 1 is represented by no change (between bit times) in signal level and a 0 is represented by a change in acknowledge, stall, preamble) and the degree of error correction to be applied. ■ Address Field-7-bit field CRC error is generally completely ignored by the receiver. 5-26 www - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 107
Configuration Registers PCI Config. Address Register Reset PCI Config. Value Address Register Reset Value 00, 01h Vendor ID 8086h 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] - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 108
Address Register 00, 01h Command 02, 03h Status 04, 05h Interupt Enable 06, 07 Frame Number 08, 0B Frame List Base Address 0Ch Start of Frame Modify 10, 11h Port 1 Status/ 2 USB- Data (minus) 4 GND Description Data (plus) Ground 5-28 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 109
longer than sixteen feet for full-channel (12 MB/s) operation, depending on cable specification (see following table). Table 5-23. USB Cable Length Data Conductor Size Resistance ground loops. Color code Signal Insulation color Data + Green Data - White Vcc Red Ground - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 110
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 Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 111
: ■ Read/write access to audio codec registers ■ Support for greater than 48-KHz sampling ■ HD audio interface 5.8.2 HD Audio Interface The HD audio controller and the HD audio codec communicate over a five-signal HD Audio Interface (Figure 5-12). The HD Audio Interface includes two serial data - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 115
Output Interfaces 5.8.5 Audio Specifications The specifications for the HD Audio subsystem are listed in Table 5-26. Table 5-26. HD Audio Subsystem Specifications Parameter Measurement 000 Hz 450-4000 Hz NOTE: [1] Device driver limitation: 48 KHz Technical Reference Guide www.hp.com 5-35 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 116
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 The controller features high and low - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 117
Format Support Alert Standard Format (ASF) support Support The NIC features Wired-for-Management (WfM) support AC receptacle, allowing support of wake-up driver: ■ Magic Packet-Packet with node address repeated 16 times in data portion ✎ The following functions are supported in NDIS5 drivers Windows - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 118
registers mapped in variable I/O space. The BIOS for the BCM5782 is contained within the HP/Compaq BIOS in system ROM. Refer to Broadcom documentation + TransmitReceive+ ReceiveNot used Figure 5 15. Ethernet TPE Connector (RJ-45, viewed from card edge) 5-38 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 120
Input/Output Interfaces 5-40 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 121
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) card in the PCI-E slot - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 123
hz refresh ■ Video DVD support: The Intel graphics controller uses a portion of system memory for instructions, textures, and frame (display) buffering. Using a process called Dynamic Video Memory Technology (DVMT), the controller dynamically allocates display and texture memory amounts according to - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 126
Ground 13 HSync Horizontal Sync Red Analog Ground 14 VSync Vertical Sync Blue Analog Ground 15 SCL DDC2-B Clock Green Analog Ground -- -- -- NOTES: [1] Fuse automatically resets when excessive load is removed. 6-6 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 128
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 times to ensure normal operation and specification hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 129
times to ensure normal operation and specification compliance. Table 7-4 lists the specifications for the 365-watt power supply used in the CMT form factor. Table 7-4. 365-Watt (CMT) Power Supply Assembly Specifications met at all times to ensure normal operation and specification compliance. [2] - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 130
resultant action of pressing the power button depends on the state and mode of the system at that time and is described as follows: System State Off On, ACPI Disabled On, ACPI Enabled Pressed Power Button PS On is negated, de-activating the power supply. 7-4 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 132
through the assertion of the PME- signal on the PCI bus. Refer to Chapter 5, "Network Support" for more information. Modem Ring A ring condition on a serial port can be detected by that the PCI card must be PCI ver. 2.2 compliant to support this function. 7-6 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 133
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 power up - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 134
shows the power supply cabling for the Ultra Slim Desktop form factor. Power Supply 379350 P2 P3 5 4321 4 P3 Pin 10 Tach +3.3 +3.3 Pin 11 RTN RTN Pin 12 Fan -12 NOTES: Connectors not shown to scale. All + and = Fan off FSpd = Fan speed FS = Fan Sink FC = Fan Command Vccp = +12 VDC for CPU [1] - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 136
5 4321 P8 432 1 P2-P6 12 34 P1 13 P7 24 13 24 1 12 Conn P1 P1 [1] P3 P4, 5, 9, 10 P6, 7, 11 P8 Pin 1 +3.3 +3.3 RTN +3.3 +12 +5 Pin 2 +3.3 -12 RTN RTN 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- - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 137
not shown to scale. All + and - values are VDC. RTN = Return (signal ground) GND = 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.com 7-11 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 138
(Figure 7-6) on the system board. Power Supply CPU 12 VDC PS 5 VDC PS Regulator Circuit VccP Aux Regulator 3.3 VDC AUX 2.5 VDC AUX Processor PCI, SATA, LPT, COM, Diskette logic USB, PS2 Kybd Chipset, logic Clk, S. Bridge, PCI, SIO, Audio, FWH logic Chipset DAC Chipset Processor Chipset - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 139
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, DVD, or Diskette Drive NOTES: See Figure 7-10 for header pinout. Figure 7-7. USDT Form Factor Signal Distribution Diagram Technical Reference Guide www.hp.com 7-13 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 140
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 Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 141
-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 Mouse Front Panel I/O Module Figure 7-9. MT / CMT Form Factor Signal Distribution Diagram Technical Reference Guide www.hp.com 7-15 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 142
CMT) HD LED Cathode 1 HD LED Anode 3 GND5 M Reset 7 +5 VDC 9 NC 11 GND 13 Chassis ID2 15 2 PS LED Cathode 4 PS LED Anode 6 Pwr Btn 8 GND 10 NC 12 GND 16 +5 VDC Chassis ID0 17 18 Chassis ID1 Front Panel Audio Header P23 Mic In Tip 1 Mic In Sleeve 3 HP Out Right 5 Front Audio Detect 7 HP - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 143
, 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 ■ Windows NT 4.0 (SP6 required for PnP support) ■ OS/2 ver 2.1 and OS/2 Warp ■ SCO Unix ■ DMI 2.1 ■ Intel - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 144
ROM device that can be re-written with new BIOS code using a flash utility locally (with F10 setup), with the HPQFlash program in a Windows environment, or with the FLASHBIN.EXE utility in a DOS or DOS-like environment. 8.2.1 Upgrading Upgrading the BIOS is not normally required but may be necessary - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 145
HP. The splash screen (image displayed during POST) is stored in the BIOS ROM and may be replaced are as follows: ■ Format = Windows bitmap with 4-bit RLE encoding ■ The BIOS supports various functions displayed only if the device is attached, except for USB devices. The USB option is displayed - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 146
on the following DIMM parameters: ■ Presence ■ Size ■ Type ■ Timing/CAS latency ■ PC133 capability ✎ Refer to Chapter 3, "Processor/Memory Subsystem" for the SPD format and DIMM data specific to this system. The BIOS performs memory detection and configuration with the following steps: 1. Program - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 148
system configuration settings as the default. Apply Defaults and Exit Applies the currently selected default settings and clears any established passwords. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 8-6 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 149
mode 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 150
mode 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 153
ID numbers are 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 156
password. Execute Memory Test When selected, will reboot system and perform a complete memory test. BIOS Power-On Allows you to set the computer to turn on automatically at a time controller is installed. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 157
Displayed 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 158
BIOS functions supported by the systems covered in this guide. These functions, designed to support intelligent manageability applications, are Compaq-specific Get chassis serial number Real, 16-, & 32-bit Prot. E820h [1] Get system memory map Real E81Ah Write chassis serial number Real E81Bh - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 161
listed in Table A-1 apply only to HP-branded models. Beeps None None None 5 beeps 6 beeps 7 beeps 8 beeps 9 beeps None Table A-1. Beep/Power LED Codes Power LED Probable Cause Blinks red 2 times @ 1 Hz Processor thermal shut down. Check air flow, fan operation, and CPU heat sink Blinks red - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 162
time information in CMOS is not valid. 164-Memory Size Error Memory has been added or removed. 201-Memory Error Memory test failed. 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 163
Error Messages 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 164
Error Messages and 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 165
Time and date not set 108-03 CMOS not properly initialized (int.test) 164-xx Memory size 109-01 CMOS clock load data test failed 199-00 Installed devices test failed NOTES: [1] 102 message code may be caused by one of a variety of processor-related problems that may be solved by replacing - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 166
Memory Error Messages Probable Cause Real memory size changed Extended memory size changed Invalid memory configuration Extended memory size changed CLIM memory size changed Memory machine ID test failed Memory system ROM checksum failed Failed RAM/ROM map test Failed RAM/ROM protect test Memory - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 167
Messages and Codes Message 211-02 211-03 213-xx 214-xx 215-xx Table A-4. (Continued) Memory Error Messages Probable Cause Error while saving memory during random memory pattern test Error while restoring memory during random memory pattern test Incompatible DIMM in slot x Noise test failed Random - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 168
Error Messages and Codes A.7 Printer Error Messages (4xx-xx) Table A-6 Printer Error Error Messages Message Probable Cause Message Probable Cause 501-01 Video controller test failed 508-01 320x200 mode, color set 0 test failed 502-01 Video memory A-8 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 169
6xx-23 Failed to set drive type in ID media 6xx-05 Failed to reset controller 6xx-24 Failed to read diskette media 6xx-06 Fatal error while reading 6xx-25 Failed to verify diskette media 6xx-07 Fatal error while writing 6xx-26 Failed to read media in speed test 6xx-08 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 170
Error Messages and Codes A.10 Serial Interface Error Messages (11xx-xx) Table A-9. Serial Interface Error 05 UART cntrl. signal failure 1109-03 Clock reset failure 1101-06 UART THRE bit failure 1109-04 09 Interrupt circuit failure 1150-xx Comm port setup error (run Setup) 1101-10 COM1 set to - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 171
for remote connection 1202-03 Data block retry limit reached [1] 1206-XX Dial multi-frequency tone test 1202-11 Time-out waiting for SYNC [2] 1206-17 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 172
and Codes Table A-10. (Continued) Modem Communications Error Messages Message Probable Cause Message Probable Cause 1202-13 Data block retry limit reached [2] 1210-01 Time-out waiting for SYNC [6] 1202-21 Time-out waiting for SYNC [3] 1210-02 Time-out waiting for response [6] 1202-22 Time - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 173
17xx-54 limit Failed digital input register test 17xx-05 Failed to reset controller 17xx-55 Cylinder 1 error 17xx-06 Fatal error while reading 17xx-56 Failed controller RAM diagnostics 17xx-07 Fatal error while writing 17xx-57 Failed controller-to-drive diagnostics 17xx-08 Failed compare - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 174
Error Messages and Codes NOTE: xx = 00, Hard drive xx = 08, Hard drive format bad track test xx = 81, Disk 1 failure xx = 09, Hard drive reset controller test xx = 82, Pri. IDE controller failure xx = 10, Hard drive park head test xx = hard drive type A-14 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 175
Device fault 19xx-12 Tape not Servo Written 19xx-33 Illegal command 19xx-13 Tape not formatted 19xx-34 No data detected 19xx-14 Drive time-out error 19xx-35 Power-on reset occurred 19xx-15 Sensor error flag 19xx-36 Failed to set FLEX format mode 19xx-16 Block locate (block ID - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 176
tst failed, invalid resp. 2478-xx AVGA BitBLT test failed EGA 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.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 177
6056-xx Token ring reset test failed Ethernet reset test failed 6068-xx Token ring int. loopback test failed Ethernet int. loopback test failed 6069-xx Token ring ext. loopback test failed Ethernet ext. loopback test failed 6089-xx Token ring open Technical Reference Guide www.hp.com A-17 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 178
BSY stayed busy 6nyy-18 No data detected 6nyy-60 Controller CONFIG-1 register fault 6nyy-21 Drive command aborted 6nyy-61 Controller CONFIG-2 register fault 6nyy-24 Media hard error 6nyy-65 Media not unloaded 6nyy-25 Reserved 6nyy-90 Fan failure 6nyy-30 Controller timed out 6nyy - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 179
Messages and Codes A.20 Pointing Device Interface Error Messages (8601-xx) Message 8601-01 8601-02 8601-03 8601-04 8601-05 8601-06 Table A-19 Pointing Device Interface Error Messages Probable 8602-xx I/F test failed Left block not selected -- -- Technical Reference Guide www.hp.com A-19 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 180
Error Messages and Codes A-20 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 183
159 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 and decimal digit(s) of desired character Technical Reference Guide www.hp.com B-3 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 184
ASCII Character Set B-4 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 185
-Saver Windows-version keyboard featuring additional keys for specific support of the Windows operating drivers every 10 ms for pressed keys while at the same time monitoring communications with the keyboard interface of the system unit. When a key is pressed, a Make code is generated. A Break code - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 186
-On Reset (POR) signal after a period of 150 ms to 2 seconds. The keyboard undergoes a Basic Assurance Test (BAT) that checks for shorted keys and basic operation of the keyboard processor. The BAT takes from 300 to 500 ms to complete. If the keyboard fails the BAT, an error code is sent to the CPU - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 Layouts Figures C-3 through C-8 show the key layouts for keyboards shipped with HPsystems. Actual styling details including location of the HP logo as well as the numbers - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 191
a BIOS routine that turns on the num lock LED and shifts into upper case key positions 55-57, 72-74, 88-90, 100, and 101. When pressed and released again, these keys revert to the lower case state and the LED is turned off. The following keys provide special functions that require specific support - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 192
they are held down at the time the third key is pressed. The Ctrl, Alt, and Delete keystroke combination (required twice if in the Windows environment) initiates a system reset (warm boot) that is handled by the BIOS. C.2.4.3 Windows Keystrokes Windows-enhanced keyboards include three additional - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 194
the keyboard can send to the system (specifically, to the 8042-type logic). Command Table C-1. Keyboard-to-System Commands Value Description Key Detection Error/Over/run 00h [1] Indicates to the system bytes. Note: [1] Modes 2 and 3. [2] Mode 1 only. C-10 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 195
compatible with 8088-/8086-based systems. To enter Mode 1, the scan code translation function of the keyboard controller must be disabled. Since translation is not performed, the scan codes generated in Mode 1 are identical to the codes required by BIOS na Technical Reference Guide www.hp.com C-11 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 201
Keyboard C.3 Connectors Two types of keyboard interfaces may be used in HP/Compaq systems: PS/2-type and USB-type. System units that provide a PS/2 connector will ship with a PS/2-type keyboard but may also support simultaneous connection of a USB keyboard. Systems that do not provide a PS/2 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 202
Keyboard C-18 www.hp.com Technical Reference Guide - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 203
) 6-2 APIC Mode 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 - HP Dc7600 | HP Compaq dx 7200 and dc7600 Personal Computers, Technical Reference - Page 204
Connector 5-12 serial number 1-3 Setup utility 8-6 Smart Cover Lock 2-22 Smart Cover Sensor 2-21 SMBIOS 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
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.