Compaq dc7700 HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid
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- Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 1
Reference Guide HP Compaq dx7300 and dc7700 Series Business Desktop Computers Document Part Number: 433473-001 September 2006 This document provides information on the design, architecture, function, and capabilities of the HP Compaq dx7300 and dc7700 Series Business Desktop Computers. This - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 2
Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft, MS-DOS, Windows, and Windows may be helpful. Technical Reference Guide HP Compaq dx7300 and dc7700 Series Business Desktop Computers First Edition (September 2006) Document - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 3
2.4.4 System Memory 2-21 2.4.5 Mass Storage 2-22 2.4.6 Serial and Parallel Interfaces 2-22 2.4.7 Universal Serial Bus Interface 2-22 2.4.8 Network Interface Controller 2-22 2.4.9 Graphics Subsystem 2-23 2.4.10Audio Subsystem 2-23 2.5 Specifications 2-24 Technical Reference Guide www.hp.com - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 4
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 4-8 4.2.6 PCI www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 5
Connector 6-6 7 Power and Signal Distribution 7.1 Introduction 7-1 7.2 Power Supply Assembly/Control 7-1 7.2.1 Power Supply Assembly 7-2 7.2.2 Power Control 7-4 7.2.3 Power Management 7-7 7.3 Power Distribution 7-8 7.4 Signal Distribution 7-10 Technical Reference Guide www.hp.com 7 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 8
Introduction 1-2 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 10
Interrupt Controller APM advanced power management AOL ASIC ASF Alert-On-LAN™ application-specific integrated circuit Alert Standard Format AT 1. attention (modem commands) 2. 286-based PC architecture ATA AT attachment (IDE protocol) ATAPI AVI ATA w/packet interface extensions audio-video - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 11
/memory controller complimentary metal-oxide semiconductor (configuration memory) controller control 1. coder/decoder 2. compressor/decompressor Compaq central processing unit Continuity (blank) RIMM cathode ray tube 1. Compaq system management 2. Compaq server management digital-to-analog converter - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 12
(RAM type) Floating point unit (numeric or math coprocessor) Frames per second Foot/feet gigabyte Graphics/memory controller controller inch interrupt input/output initial program loader Infrared Data Association interrupt request industry standard architecture www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 13
Reference Guide Introduction Memory controller window variable parameter/value network interface card/controller nickel-metal hydride non-maskable interrupt Non-return-to-zero inverted nanosecond nested task flag National Television Standards Committee non-volatile random access memory - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 14
Printed circuit assembly peripheral component interconnect 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 15
TPI TTL TV TX UART UDMA URL us/µs USB UTP V Technical Reference Guide Table 1-1 Acronyms and Abbreviations Description Synchronous Graphics RAM Single instruction multiple data single in-line memory module Self Monitor Analysis Report Technology system management interrupt system management mode - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 16
Acronyms and Abbreviations Description Volts alternating current 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 17
USDT HP Compaq dc7700 SFF HP Compaq dc7700 CMT Figure 2-1. HP Compaq dx7300and dc7700 Series Business Desktop Computers This chapter includes the following topics: ■ Features (2.2) ■ Mechanical design (2.3) ■ System architecture (2.4) ■ Specifications (2.5) Technical Reference Guide www.hp.com - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 18
■ Network interface controller providing 10/100/1000Base 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 19
different PC series based on form factor: Table 2-1 Difference Matrix by Form Factor USDT SFF ST MT CMT Series dc7700 dc7700 dx7300 dx7300 dc7700 System Board Type custom custom custom µATX µATX Serial and parallel ports Optional [1] Standard Standard Standard Standard Memory - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 20
Overview 2.3 Mechanical Design This guide covers five form factors: ■ Ultra-slim Desktop (USDT)-Very slim design that can be used in a tradition desktop (horizontal) orientation or as a small tower mounted in the supplied tower stand. ■ Small Form Factor (SFF)-A small footprint design that can be - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 21
the Ultra Slim Desktop (USDT) format factor. 12 3 4 5678 Item 1 2 3 4 Description Slimline drive bay CD-ROM eject button Microphone audio In jack Headphone audio Out jack Item 5 6 7 8 Figure 2-2. HP Compaq dc7700 USDT Front View Decription USB ports 7, 8 HD activity LED Power LED Power button - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 22
media tray CD-ROM drive open/close button Item 7 8 9 10 11 12 Decription Microphone audio In jack Headphone audio Out jack USB ports 7, 8 Hard drive activity LED Power LED Power button Figure 2-3. HP Compaq dc7700 SFF (left)/dx7300 ST (right) Front View 2-6 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 23
(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 2-4. HP Compaq dx7300 MT Front View Decription CD-ROM drive open/close button Power - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 24
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 2-5. HP Compaq dc7700 CMT Front View Decription CD - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 25
. 1/8 inch, 3-conductor phone jack (color-coded blue) for stereo audio line input. 1/8-inch, 3-conductor phone jack (color-coded green) for stereo audio line output. 1/8-inch, 3-conductor phone jack (color-coded pink) for stereo audio microphone input. Technical Reference Guide www.hp.com 2-9 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 26
the maintenance and service guide for these systems. UIltra Slim Desktop Chassis The Ultra Slim Desktop (USDT) chassis used for the HP Compaq dc7700 models uses a compact, space-saving form factor. 12 3 7 4 6 5 Item 1 2 3 4 Description Power supply assembly DIMM sockets (3) PCI or PCIe riser - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 27
Form Factor / Slim Tower Chassis The chassis layouts for the Small Form Factor (SFF) used for the HP Compaq dc7700 models and the Slim Tower (ST) used for the HP Comapq dx7300 models are shown in Figure 2-8. Features include: ■ Tilting drive cage assembly for easy access to processor and memory - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 28
(MT) chassis used for the HP Compaq dx7300 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 29
Figure 2-9 shows the layout for the Convertible Minitower (CMT) chassis in the minitower configuration used for HP Compaq dc7700 models. Features include: ■ Externally accessible drive bay assembly may be configured for minitower (vertical) or desktop (horizontal) position. ■ Easy access to - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 30
LED, temp sensor header Chassis speaker connector Front panel audio connector Front panel USB port connector Chassis fan connector Processor fan connctor DIMM sockets (3) IDE (PATA) connector Battery Power supply connector Figure 2-10. USDT System Board 2-14 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 31
port connector DIMM sockets (4) Diskette drive connector IDE (PATA) connector Battery Power supply connector Hood lock header -- NOTE: See SFF and ST rear chassis illustrations for externally accessible I/O connectors. Figure 2-11. SFF/ST System Board Technical Reference Guide www.hp.com 2-15 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 32
Front panel audio connector -- NOTES: See CMT rear chassis illustration for externally accessible I/O connectors. [1] Applicable to CMT chassis only. [2] Not included on MT system boards. Figure 2-12. MT and CMT System Board and CMT PCI Expansion Board 2-16 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 33
. The USDT model supports a Slimline Optical Drive through a legacy parallel ATA 100 interface. Table 2-3 lists the differences between models by form factor. Table 2-3. Architectural Differences By Form Factor Model USDT SFF ST MT Memory sockets 3 4 4 4 PCI Express x16 graphics slot - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 34
card. CMT: normal-layout graphics, ADD2, SDVO card. [2] USDT only [3] USDT requires PCI riser card [4] Requires optional cable assembly for USDT form factor, standard on SFF, ST, MT, and CMT form factors. Figure 2-13. System Architecture, Block diagram 2-18 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 35
System Overview 2.4.1 Intel Processor Support The models covered in this guide support the following processor types: ■ Intel Pentium Processor Extreme Edition - dual-core design with Hyper-Threading (3) by the edges and lift straight up from the socket. Technical Reference Guide www.hp.com 2-19 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 36
800-, or 1066-MHz FSB PCI 2.3 bus I/F PCI Express x1 LPC bus I/F SMBus I/F IDE I/F with SATA and PATA support HD audio interface RTC/CMOS IRQ controller Power management logic USB 1.1/2.0 controllers supporting eight (8) ports Gigabit Ethernet Controller The I/O controller hub (ICH8-DO ) features - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 37
monitoring Fan control and monitoring Power supply voltage monitoring SMBus and Low Pin Count (LPC) bus I/F Intel 82566DM Network Interface 10/100/1000 Fast Ethernet network interface controller. Controller ALC262 HD Audio Codec Audio mixer One digital-to-analog 2-channel converter Two analog - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 38
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 standard baud rates up to 115,200 as well as two high-speed baud rates - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 39
upgrading through the PCI Express x16 graphics slot. ✎ The PCI Express x16 slot of the USDT form factor supports either a reverse-layout SDVO ADD2 card or a low-profile PCIe x16 graphics card. 2.4.10 Audio Subsystem These systems use the integrated High Definitions audio controller of the chipset - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 40
-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 240 watts 365 watts 4 A @ 100 VAC 5 A @ 100 VAC 6 A @ 100 VAC . International 100-240 VAC - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 41
2-9 Physical Specifications Parameter USDT ST SFF MT CMT [2] Height Minitower configuration. For desktop configuration, swap Height and Width dimensions [3] Applicable to unit in desktop orientation only and assumes reasonable type of load such as a monitor . Technical Reference Guide www.hp - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 42
System Overview 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 (high/low) Settling Time Latency Average 3 ms/6 ms 94 ms/169 ms 15 ms 100 ms 2-26 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 43
25 nm 53.5 + 1.5° 53.6 0.14 mW GaAs 790 +/- 25 nm Average Access Time: Random Full Stroke - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 44
Overview Table 2-12 Hard Drive Specifications Parameter 80 GB 160 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 18 ms 488,397,168 7200 RPM SMART III 2-28 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 45
A DIMM XMM2 Ch A DIMM Note: [1] Not present on USDT form factor. Ch B DIMM XMM3 Ch B DIMM XMM4 [1] Figure 3-1. Processor/Memory Subsystem Architecture This chapter includes the following topics: ■ Intel Pentium processor (3.2) ■ Memory subsystem (3.3) Technical Reference Guide www.hp.com 3-1 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 46
SIMD extensions (SSE2 andSSE3)-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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 47
of micro-ops (decoded instructions dealing with branching sequences) that are checked when re-occurring branches are processed. Code that is not executed ( also support the Intel Celeron D processors and the energy-efficient Intel CoreT M 2 Duo processors. Technical Reference Guide www.hp. - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 48
rated above 95 watts are not recommended. 3.3 Memory Subsystem All models support non-ECC PC2-5300 and PC2-6400 DDR2 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 49
specification for 128-byte EEPROMs. This system also provides support for 256-byte EEPROMs to include additional HP-added features such as part number and serial number. The SPD format as supported in this system (SPD rev. 1) is shown in Table 3-1. If BIOS detects an unsupported DIMM, a "memory - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 50
form factor provides only three DIMM sockets and therefore cannot match the SFF, ST, MT, and CMT form factors in maximum memory 1-GB 1-GB 1-GB none 1-GB 1-GB 1-GB 1-GB NOTE: [1] Not present on USDT form factor. Total 128-MB 256-MB (dual-channel) 384-MB (dual-channel) 512-MB (dual- channel - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 51
Burst Lengths Supported No. of Banks For Each Mem. Device CAS Latencies Supported CS# Latency Write Latency DIMM Attributes Memory Device Attributes Min Code DIMM OEM Location OEM's Part Number OEM's Rev. Code Manufacture Date OEM's Assembly S/N OEM Specific Data Intel frequency check Reserved Compaq - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 52
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 3-8 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 53
as well as information unique to the systems covered in this guide. For detailed information on specific components, refer to the applicable manufacturer's documentation. 4.2 PCI Bus Overview ✎ This section describes the PCI bus in general and highlights bus implementation in this particular system - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 54
: Only implemented functions are shown. [1] In USDT SFF, and ST form factors, accepts reverse-layout graphics cards. In MT and CMT form factors, accepts nomal layout graphics card. Figure 4-1. PCI Bus Devices and Functions 4.2.1 PCI 2.3 Bus Operation The PCI 2.3 bus consists of a 32-bit path (AD31 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 55
the cycle is running. 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 56
these systems. [2] Mapping for USB 1.1 Controller #4 if USB ports 9 and 10 and USB 2.0 Controller #2 are disabled. Otherwise, mapping for USB 1.1 controller #4 is F0:D25. [3] SFF, ST, & CMT form factors only. [4] CMT form factor with PCI expansion board. 4-4 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 57
3Ch 38h 34h 30h 2Ch 28h 10h BIST Hdr. T ype Lat. Timer Line Size 0Ch Class Code Status Revision ID 08h Command 04h Device ID Vendor ID 00h 31 24 23 16 15 8 7 0 Device-Specific Area Brid ge Control Int. Pin Int. Line Ex pansion ROM Base Address Reserved I/O Limit Upper 16 Bits - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 58
Support Table 4-3. PCI Bus Mastering Devices Device REQ/GNT Line PCI Connector Slot 1 REQ0/GNT0 PCI Connector Slot 2 REQ1/GNT1 PCI Connector Slot 3 REQ2/GNT2 PCI Connector Slot 4 REQ3/GNT3 Note [1] [2] [2] NOTE: [1] SFF, ST, MT, and CMT form factors only. [2] CMT form factor with PCI - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 59
suffix to the packet created by the transaction layer. Flow-control methods ensure that a packet will only be transferred if the receiving device is ready to accomodate it. A corrupted packet will be automatically re-sent. Physical Layer The PCI Express bus uses a point-to-point, high-speed TX/RX - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 60
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 ROM Mapping During POST, the PCI bus is scanned for devices that - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 61
4.2.6 PCI Connectors PCI 2.3 Connector A1 System Support A49 A52 A62 B2 B49 B52 B62 Figure 4-5. 32-bit, 5.0-volt PCI 2.3 Bus Connector (J20, J21 on system board) Pin B Signal 01 -12 BE0- +3.3 VDC AD06 AD04 GND AD02 AD00 +5 VDC REQ64+5 VDC +5 VDC Technical Reference Guide www.hp.com 4-9 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 62
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 J31 (x1) and J41(x16) on system board Pin B Signal PERn13 GND GND PERp14 PERn14 GND GND PERp15 PERn15 GND 4-10 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 63
Support 4.3 System Resources This section describes the availability and basic control enabled or disabled within the microprocessor by the use of the STI and CLI instructions -H (PCI) or services the peripheral as appropriate. Most IRQs are routed through the I/O controller Guide www.hp.com 4-11 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 64
timer 1, counter 0 IRQ1 Keyboard IRQ8- Real-time clock IRQ9 Unused IRQ10 PCI devices/slots IRQ11 Audio codec IRQ12 Mouse IRQ13 Coprocessor (math) IRQ14 Primary IDE controller IRQ15 Sec. IDE I/F controller (not available on SATA units) IRQ3 Serial port (COM2) IRQ4 Serial port - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 65
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 running the Windows 95 or 98 operating system will need to run in 8259 mode. Technical Reference Guide www.hp - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 66
: ■ Parity errors detected on a PCI bus (activating SERR- or PERR-). ■ Microprocessor internal error (activating IERRA or IERRB) The SERR- and PERR- signals are routed through the ICH8 component, which in turn activates the NMI to the microprocessor. 4-14 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 67
Support NMI Enable Register (070h, ) is used to enable/disable 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 68
space of the CPU. In addition to device configuration, each channel can be configured (through PCI Configuration Registers) for one of two modes of operation: ■ LPC DMA ■ PC/PCI DMA The LPC DMA mode uses the LPC bus to communicate DMA channel control and is implemented for devices using DMA - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 69
to 64 Kbytes of data per DMA transfer. DMA controller 2 can move up to 64 Kwords (128 Kbytes) of data per DMA transfer. Word DMA operations are only possible between 16-bit memory and 16-bit peripherals. The RAM refresh is designed to perform a memory read cycle on each of the 512 row addresses - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 70
Support The remaining address lines are in an undefined state during the refresh cycle. The refresh operations are driven by a 69.799-KHz clock generated by Interval Timer 1, Counter 1. The refresh rate is 128 refresh cycles in 2.038 ms. DMA Controller Registers Table 4-11 lists the DMA Controller - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 71
A lithium 3-VDC battery 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 72
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 management functions 40-FFh Feature Control/Status NOTES - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 73
Support Power-On / Setup Password These systems include a power-on and setup passwords, which may be enabled or disabled (cleared) through a jumper on the system board. The jumper controls a GPIO input to the 82801 ICH8 that is checked during POST. The password is stored in configuration memory - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 74
consuming components (processor, chipset, I/O controller, and fan) can be placed into a reduced power mode either automatically or by user control. The system 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 75
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 76
(dword access only ) Reset Control Register PCI Configuration Data (byte, word, or dword access) NOTE: Assume unmarked gaps are unused, reserved, or used by functions that employ variable I/O address mapping. Some ranges may include reserved addresses. 4-24 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 77
Device Power Management 00h PLL / Oscillator Control 04h Reserved Configuration Address (Low Byte) Configuration Address (High Byte) Reserved NOTE: For a detailed description of registers refer to appropriate documentation available from SMC Corporation. Technical Reference Guide www.hp - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 78
SCH5317 is connected to the hood sensor switch to record hood (cover) removal. ■ Hood lock/unlock-Supported on SFF, ST, MT, and CMT form factors, logic internal to the SCH5317 controls the lock bar mechanism. ■ I/O security-The parallel, serial, and diskette interfaces may be disabled individually - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 79
to that of the legacy IDE host adapter. 5.2.1 SATA Programming The SATA interface is configured as a PCI device during POST and controlled through I/O-mapped registers at runtime. Non-DOS (non-Windows) operating systems may require using Setup (F10) for drive configuration. Technical Reference - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 80
The SATA controller is configured as a PCI device with bus mastering capability. The PCI configuration registers for the SATA controller function (PCI device #31, function #2) are listed in Table 5-1. Table 5-1. SATA PCI Configuration Registers (82801, Device 31/Function 2) PCI Conf. Addr - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 81
data protection for configurations using dual drive arrays. A software solution is included that provides full management and status reporting of the RAID array, and the BIOS ROM also supports RAID creation, naming, and deletion of RAID arrays. Technical Reference Guide www.hp.com 5-3 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 82
and CMT form factors support a controller to the system. The Command phase consists of several bytes written in series from the CPU controller must be configured for a specific address and also must be enabled before it can be used. Address selection and enabling hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 83
Type R/W FFh F4h DD 0 R/W 00h F5h DD 1 R/W 00h For detailed configuration register information refer to the SMSC data sheet for the SCH5317 I/O component. Technical Reference Guide www.hp.com 5-5 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 84
Drive Interface Control The BIOS function INT 13 provides basic control of the diskette drive interface. The diskette drive interface can be controlled by software through the SCH5317's I/O-mapped registers listed in Table 5-5. The diskette drive controller of the SCH5317 operates in the PC/AT mode - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 85
busy (active high) Reserved Drive 1, 2 busy (active high) Data Rate Select Register (DRSR): Software reset (active high) Low power mode enable (records opposite value of pin) Reserved (0's) Configuration Control Register (CCR): Reserved Data rate select (00 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 86
SFF, ST, MT, and CMT form factors use a standard 34-pin connector for diskette drives (refer to Figure 5-2 and Table 5-6 for the pinout). Drive power is supplied Description Ground 18 DIR- Drive head direction control Low density select 19 GND Ground (KEY) hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 87
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 SCH5317 I/O controller. Technical Reference Guide www.hp.com 5-9 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 88
Reg. Is set) Interrupt Enable Register 3FAh 2FAh Interrupt ID Register FIFO Control Register 3FBh 2FBh Line Control Register 3FCh 2FCh Modem Control Register 3FDh 2FDh Line Status Register 3FEh 2FEh Modem Status R/W R W W W R/W R W R/W R/W R R 5-10 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 89
on the eight data lines. A CPU read of the parallel port yields the last data byte that was written. The following steps define the standard procedure for communicating with a printing device: 1. The system checks the Printer Status register. If the Busy, Paper Out, or Printer Fault signals - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 90
decompression is supported by ECP mode. The ECP mode includes a bi-directional FIFO buffer that can be accessed by the CPU using DMA the SCH5317 I/O controller. Address selection and enabling are automatically done by the BIOS during POST but R/W 00h 5-12 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 91
Control 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 LPT1,2,3 Technical Reference Guide www.hp.com 5-13 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 92
GND Ground Ground 9 D7 10 ACK- Data 7 Acknowledge / Interrupt [1] 22 GND 23 GND Ground Ground 11 BSY Busy / Wait [1] 24 GND Ground 12 PE 13 SLCT Paper End / User defined [1] Select / User defined [1] Reset ECP modes: Initialize or Reverse Req. 5-14 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 93
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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 94
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] 5-16 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 95
default scan code set. [1] Set Keys-Make F9h Clears keyboard buffer and sets default scan code set. [1] controller. Enabling and speed control are automatically set by the BIOS during POST but can also be accomplished with the Setup utility and other software. Technical Reference Guide www.hp - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 96
Control The 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 97
scan code (translated) format to port 60h. 3. Write 00h to port 60h. Enable security. This command places the 8042 in password lock mode following the A5h command. The correct password must then be entered before further communication with the 8042 is allowed. Disable pointing device. This command - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 98
written to port 60h as if it originated from the keyboard. No 11-to-9 bit translation takes place but an interrupt (IRQ1) 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 99
Connector (as viewed from rear of chassis) Table 5-16. 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 Technical Reference Guide www.hp.com 5-21 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 100
interface supports hot-plugging of compatible devices, making possible system configuration changes without powering down 9N Table 5-17. ICH8 USB Port Mapping USB Connector Location USDT, SFF, ST Form Factors MT & CMT Form Factors Rear panel quad USB stack Rear panel quad USB stack Rear panel - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 101
. 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. Technical Reference Guide www.hp.com 5-23 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 102
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 2.0 = 24DDh 5-24 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 103
04, 05h Interupt Enable 06, 07 Frame Number 08, 0B Frame List Base Address 0Ch Start of Frame Modify 10, 11h Port 1 Status/Control 12, 13h Port 2 Status/Control 18h Test Data 3 USB+ Data (plus) 2 USB- Data (minus) 4 GND Ground Technical Reference Guide www.hp.com 5-25 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 104
the USB device should be no longer than sixteen feet for full-channel (12 MB/s) operation, depending on cable specification (see following 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 105
, or to powered speakers that contain amplifiers. 82801 ICH HD Audio Interface PC Beep HD Audio I/F Line In Front Panel Mic In Line Audio (L/R) Header P23 Mic Audio (L/R) Rear Panel Mic In [1] Mic Audio (L/R) Header P11 [2] Aux Audio In Audio In (L/R) Speaker Audio (mono) Audio Amp Header - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 106
a PCI Express device that is integrated into the 82801 ICH component and supports the following functions: ■ 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 107
one is typcially used. All audio lines represent both left and right channel information. [1] CMT form factor only. Figure 5-12. ALC262 HD Audio Codec Functional Block Diagram All functions are controlled through index-addressed registers of the codec. Technical Reference Guide www.hp.com 5-29 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 108
function of the 82801 ICH. Table 5-22 lists the PCI configuration registers of the audio subsystem. Table 5-22. HD Audio Controller PCI Configuration Registers (82801 Device 27/Function 0) PCI Config. Address Register PCI Value on Config. Reset Address Register Value on Reset 00-01h Vendor - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 109
00Ah 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 Technical Reference Guide www.hp.com - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 110
Audio Specifications The specifications for the HD Audio subsystem are listed in Table 5-24. Table 5-24. HD Audio Subsystem Specifications (nom) Total Harmonic Distortion (THD) ADC -82 DAC -87 Max. Subsystem Power Output to 4-ohm Internal Speaker (with 10% THD): 1.5 watts Gain Step - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 111
the following features: ■ VLAN tagging with Windows XP and Linux. ■ Multiple VLAN support with Windows 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 priority queues - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 112
of system wake up is implemented through an ACPI-compliant OS and is the default power management mode. The following wakeup events may be individually enabled/disabled through the supplied software driver: ■ Magic Packet-Packet with node address repeated 16 times in data portion ✎ The following - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 113
a PCI device and controlled through registers mapped in variable I/O space. The BIOS for theNIC is contained within the HP/Compaq BIOS in Transmit+ TransmitReceive+ ReceiveNot used Figure 5 14. RJ-45 Ethernet TPE Connector (as viewed from rear of chassis) Technical Reference Guide www.hp.com 5-35 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 114
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. 5-36 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 115
employs the use of system memory to provide efficient, economical 2D and 3D performance. These systems may be upgraded/modified one of two ways: ■ Installing a DVI ADD2 or graphics card into the PCI-E x16 slot and either enabling or disabling the integrated controller or ■ Installing a graphics card - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 116
GMA 3000 Controller PCI Express x16 Graphics slot [1] PCI-E & 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. Q965 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 117
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 118
may be used to check the amount of video memory being used. The Display tab of the utility the "Approx. Total Memory" label will indicate the amount of video memory. The value will vary according to OS (In Windows XP, the video memory size reported by DirectX will always be 32 MB, even if the - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 119
card. 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 by - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 120
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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 121
, Logic, & Voltage Regulators 90 - 264 VAC +3.3 VDC 5 AUX +5 VDC +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. Figure 7-1. Power Distribution and Control, Block Diagram Technical Reference Guide www.hp.com 7-1 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 122
power supplies with power factor-correction logic. Four power supplies are used: a 200-watt power supply for the USDT 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 123
and Signal Distribution Table 7-3 lists the specifications for the 365-watt power supply used in the MT and CMT form factors Table 7-3. 365-Watt (M/T & CMT) Power Supply Assembly Specifications Input Line Voltage: 115-230 VAC (auto-ranging) Line Frequency Input (AC) Current +3.3 VDC Output +5.08 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 124
ACPI Disabled On, ACPI Enabled Pressed Power Button Results In: Negative pulse, of which the falling edge results in power control logic asserting PS On signal to Power Supply Assembly, which then , PS On is negated, de-activating the power supply. 7-4 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 125
suspend 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 storage devices, expansion cards and/or system board (CPU power connector P3). Pre-video memory error - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 126
. 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 (or later) compliant to support this function. 7-6 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 127
power button action - OS Restart Required No No No Yes Yes - NOTES: Gn = Global state. Sn = Sleep state. Cn = ACPI state. Dn = PCI state. [1] Power cord is disconnected for this condition. [2] Actual transition time dependent on OS and/or application software. Technical Reference Guide www.hp - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 128
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 403777 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 +12 +3.3 RTN Pin - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 129
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 130
power supply cabling for the microtower and convertible minitower systems. Power Supply 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/CMT Power Cable Diagram 7-10 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 131
LED P8 P6 P5 +12 VccP P3 +3.3, +5, +5 Aux, +12 VDC P1 PS On, POK Power Supply Assembly System Board 404233 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 8,9 Tx/Rx P24 SATA Hard Drive SATAPATA Interface Keyboard Slimline Optical - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 132
P60 SATA Hard Drive SATA I/F P61 Kybd data J66 Mouse data J67 Mic In, HP Out Audio P23 USB 8,9 Tx/Rx P24 CD-ROM Keyboard Mouse Front Panel I/O Module NOTES: See Figure 7-8 for header pinout. Figure 7-6. SFF / ST Form Factor Signal Distribution Diagram 7-12 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 133
: 404224-001 P61 SATA I/F SATA I/F. SATA Hard Drive CD-ROM Kybd data J68 Mouse data Keyboard Mouse Mic In, HP Out Audio P23 USB 8,9 Tx/Rx P24 J30 PCI 2.3 I/F Front Panel I/O Module PCI Expansion Daughter Board [1] NOTE: [1] CMT form factor only. [2] See Figure 7-8 for header pinouts. Figure - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 134
/LED, HD LED Header P5 (USDT, SFF, ST) HD LED + 1 HD LED - 3 GND5 Pwr Btn 7 Chassis ID0 9 GND 11 Therm Diode A 13 2 PS LED + 4 PS LED - 8 GND 10 Chassis ID1 12 NC 14 Therm Diode C Power Button/LED, HD LED Header P5 (MT, CMT) HD LED Cathode 1 HD LED Anode 3 GND5 M Reset 7 +5 VDC - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 135
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 136
flashing of the system BIOS ROM. If the BIOS ROM fails the flash check, the boot block code provides the minimum amount of support necessary to allow booting the system from the diskette drive and re-flashing the system ROM with a CD, USB, or diskette. 8-2 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 137
into the ROM. 8.3 Boot Functions The BIOS supports various functions related to the boot process, including those that occur during the Power On Self-Test (POST) routine. 8.3.1 Boot Device Order The default boot device order is as follows: 1. CD-ROM drive (EL Torito CD images) 2. Diskette drive - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 138
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. 3. Determine the memory size for each DIMM and program the GMCH accordingly. 4. Enable refresh 8-4 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 139
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 8-5 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 140
System ROM Allows user to update the BIOS image from Setup. The binary file can be obtained from a USB, diskette, or CD removable media. Replicated Setup Save Support for specific Computer Setup options may vary depending on the hardware configuration. 8-6 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 141
Computer Setup. Storage Device Configuration Lists all installed BIOS-controlled storage devices. When a device No emulation options available CD-ROM drive No Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 142
IDE controller. 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. 8-8 www.hp.com Technical - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 143
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 144
Desktop Management Guide on the Documentation CD for more information. Enables/disables serial ports, parallel port, front USB ports, system audio, network controllers (some models), SMBus controller (some models), and SCSI controllers (some models). Enables/disables the computer's ability to boot - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 145
SATA power 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. Technical Reference Guide www.hp - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 146
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. 8-12 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 147
memory test. BIOS Power-On Allows you to set the computer to turn on automatically at a time you specify. Onboard Devices Allows you to set resources for or disable onboard system devices (diskette controller, serial port, or parallel port). PCI Devices • Lists currently installed PCI devices - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 148
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. 8-14 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 149
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 150
System (Form Factor) Subsystem System ID Device ID USDT 0A5Ch 2803h SFF/ST: 0A54h 2801h MT: 0A50h 2800h CMT: 0A58h 2802h NOTE: For all systems, BIOS ROM or Critical condition. 8.5.3 Drive Fault Prediction The BIOS directly supports Drive Fault Prediction for IDE (ATA)-type hard drives - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 151
Log Information Physical Memory Array Memory Devices Memory Array Mapped Addresses Memory Device Mapped Addresses Boot Integrity Service Entry Point System Boot Information ✎ System information on these systems is handled exclusively through the SMBIOS. 8.7 USB Legacy Support The BIOS ROM checks - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 152
BIOS ROM 8-18 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 153
. 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 154
. 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 155
Error Messages and Codes Table A-2. (Continued) Power-On Self Test (POST) Messages Error Message Probable Cause 514-CPU or Chassis Fan not detected. CPU fan is not connected or may have malfunctioned. 601-Diskette Controller Error Diskette drive removed since previous boot. 605-Diskette - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 156
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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 157
106-01 Keyboard controller test failed 116-xx Way 0 read/write test failed 107-01 CMOS RAM test failed 162- 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 158
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 159
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 A-7 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 160
Error Messages and Codes A.7 Printer Error Messages (4xx- Cause Message Probable Cause 501-01 Video controller test failed 508-01 320x200 mode, color set 0 test failed 502-01 Video memory test failed 509-01 320x200 mode, video (graphics) messages. A-8 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 161
Error Messages and Codes A.9 Diskette Drive Error Messages (6xx-xx 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- /media ID error (run Setup) Technical Reference Guide www.hp.com A-9 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 162
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 163
Messages and Codes A.11 Modem Communications Error Messages (12xx-xx) Table A-10. Modem Communications Error Messages line fault 1204-07 Dial number string too long 1201-05 UART control signal failure 1204-08 Modem time-out waiting for remote response 1201 Reference Guide www.hp.com A-11 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 164
Error Messages and Codes Table A-10. (Continued) Modem Communications Error Messages Message Probable Cause Message Probable Cause 1202-13 Data block retry limit A-11 System Status Error Messages Probable Cause Temperature violation Fan failure A-12 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 165
Codes Failed controller RAM diagnostics 17xx-07 Fatal error while writing 17xx-57 Failed controller-to 17xx-67 Failed to write long 17xx-44 Failed controller diagnostics 17xx-68 Failed to read long 17xx-45 -48 Failed to move hard drive table to RAM 17xx-72 Bad track limit exceeded 17xx-49 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 166
Codes NOTE: xx = 00, Hard drive ID test xx = 19, Hard drive power 1 failure xx = 09, Hard drive reset controller test xx = 82, Pri. IDE controller failure xx = 10, Hard drive park head 92, Se. controller failure xx = 16, Hard drive conditional format test xx = 93, Sec. Controller or disk - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 167
Codes 23 Change line unset 19xx-04 Drive busy erro 19xx-24 Write-protect error 19xx 19xx-27 Drive not compatible with controller 19xx-08 Unable to Servo Write 19xx Failed self-test 19xx-20 NEC fatal error 19xx-91 Power lost during test 1900-xx = Tape ID test failed Guide www.hp.com A-15 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 168
Cause Video memory test failed 2418-02 EGA shadow RAM test failed 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 169
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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 170
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 171
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 Mouse loopback test failed Right mouse button is inoperative 8601-10 Pointing device is inoperative Right mouse button is stuck closed 8602-xx I/F - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 172
Error Messages and Codes A-20 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 173
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 174
¬ 202 CA 234 EA 139 8B ï 171 AB ½ 203 CB 235 EB 140 8C î 172 AC ¼ 204 CC 236 EC 141 8D ì 173 AD ¡ 205 CD 237 ED 142 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 175
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 176
ASCII Character Set B-4 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 177
Standard enhanced keyboard. ■ Space-Saver Windows-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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 178
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 179
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 180
USB I/F specification (discussed in chapter 5 of this guide). Packets controller where normal (legacy) keyboard processing takes place. C.2.3 Keyboard Layouts Figures C-3 through C-8 show the key layouts for keyboards shipped with HPsystems. Actual styling details including location of the HP - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 181
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 2345 6 789 10 11 12 13 14 15 16 17 18 19 74 58 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 182
allowing quick internet navigation. The Easy Access Keyboard uses the PS/2-type connection. Btn 1 Btn 2 Btn 3 Btn 4 Btn 5 Btn 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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 183
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 184
boot) that is 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 185
Community 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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 186
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 187
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. Mode 1 is initiated 13 F12 58/D8 07/F0 07 5E/na Technical Reference Guide www.hp.com C-11 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 188
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 189
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 190
Enter 1C/9C 72 4 4B/CB [6] 73 5 4C/CC [6] 74 6 4D/CD [6] 75 Shift (left) 2A/AA 76 Z 2C/AC 77 X 2D/AD 78 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 41 49/F0 49 C-14 www.hp.com Mode 3 7C/F0 7C 14/F0 Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 191
Keyboard Table C-2. (Continued) Keyboard Scan Codes Key Pos. Legend Mode 1 Make/Break Codes (Hex) Mode 2 Mode 3 85 / 35/B5 E0 F0 72 E0 F0 12[6] 99 E0 4D/E0 CD E0 74/E0 F0 74 6A/F0 6A E0 AA E0 4D/E0 CD E0 2A [4] E0 F0 12 E0 74/E0 F0 61 13/F0 13 Technical Reference Guide www.hp.com C-15 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 192
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 dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 193
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 - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 194
Keyboard C-18 www.hp.com Technical Reference Guide - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 195
(ADD2) 6-2 APIC Mode 4-13 audible (beep) indications 4-23 audio codec 5-32 Audio Specifications 5-32 B BIOS upgrading 8-2 boot device order 8-3 Boot Error Codes 8-5 C CMOS 4-19 CMOS, clearing 4-19 Computer Setup (Utility)8-6 configuration memory 4-19 D Direct Memory Access (DMA) 4-16 Diskette Drive - Compaq dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guid - Page 196
address map 3-7 specifications physical 2-26 system ID 8-16 T Temperature Status 8-16 U Universal Serial Bus (USB) interface 5-22 upgrading BIOS 8-2 upgrading graphics 6-5 USB 5-22 V VGA connector 6-6 W Web sites Adobe Systems, Inc. 1-1 HP 1-1 Intel
Technical Reference Guide
HP Compaq dx7300 and dc7700 Series
Business Desktop Computers
Document Part Number: 433473-001
September 2006
This document provides information on the design, architecture, function,
and capabilities of the HP Compaq dx7300 and dc7700 Series Business
Desktop Computers. This information may be used by engineers,
technicians, administrators, or anyone needing detailed information on
the products covered.