HP Dc7700 HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1
HP Dc7700 - Compaq Business Desktop Manual
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- HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 1
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. - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 2
HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP . Technical Reference Guide HP Compaq dx7300 and dc7700 Series Business Desktop Computers First Edition - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 4
Power Management 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 Parallel Port Mode 5-11 5.5.3 Extended Capabilities Port Mode 5-12 6 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 6
8-6 8.5 Client Management Functions 8-15 8.5.1 System ID and ROM Type 8-15 8.5.2 Temperature Status 8-15 8.5.3 Drive Fault Prediction 8-15 8.6 SMBIOS 8-17 8.7 USB Legacy Support 8-17 A Error Messages and Codes B ASCII Character Set C Keyboard Index 8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 7
of this guide primarily describe the hardware and firmware elements and primarily deal with the system board and the power supply assembly. the latest edition of this guide is available for downloading in .pdf file format at the URL listed below: www.hp.com Viewing the file requires a copy of Adobe - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 8
Introduction 1-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 9
cabinet. The serial 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 are described in the following subsections. 1.5.1 Values Hexadecimal values are indicated by a numerical - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 10
programming interface APIC Advanced Programmable Interrupt Controller APM advanced power management AOL ASIC ASF Alert-On-LAN™ application-specific compact disk compact disk read-only memory compact disk system CGA color graphics adapter 1-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 11
(connector type) dual inline package direct memory access Desktop management interface dots per inch dynamic random access memory data request Digital video interface Double word (32 bits) extended display identification data extended data out (RAM type) electrically eraseable PROM enhanced graphics - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 12
frequency modulation fast page mode (RAM type) Floating point unit (numeric or math coprocessor) Frames per second Foot/feet gigabyte Graphics/memory controller hub ground general purpose I/O Data Association interrupt request industry standard architecture www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 13
NMI NRZI ns NT NTSC NVRAM OS PAL PATA Technical Reference Guide Introduction Table 1-1 Acronyms and Abbreviations Description kilobits/kilobytes (x 1024 logical unit (SCSI) Meter Memory controller hub multimedia extensions Motion non-volatile random access memory operating system 1. programmable array - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 14
per minute real time clock Read/Write Serial ATA small computer system interface Singles data rate (memory) Synchronous Dynamic RAM Serial digital video output Single Edge-Connector sequential colour avec memoire (sequential color with memory) sign flag www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 15
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 locator microsecond Universal Serial Bus unshielded twisted pair volt www.hp.com Introduction 1-9 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 18
PC2-5300 DIMM support on all models ■ Serial ATA (SATA) interfaces supporting transfer rates up Power-on password ❏ Administrator password ❏ Serial/parallel port disable ❏ hood (cover) sense ❏ USB port disable ■ PS/2 enhanced keyboard ■ PS/2 scroll mouse 2-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 19
SFF ST MT CMT Power Supply: Power rating PFC type Auto-ranging 200-watt Active Yes 240-watt Active Yes 240-watt Active Yes 365-watt Active Yes 365-watt Active Yes NOTES: [1] Supported support. Full-height dimensions: height = 4.2 in., length = 6.875 in Technical Reference Guide www.hp - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 20
System 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 22
Figure 2-3 shows the front panel components of the Small Form Factor (SFF). and Slim Tower (ST) Item 1 2 3 4 5 6 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 23
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 button Power LED Hard drive activity LED Headphone audio Out jack Microphone audio In jack Technical Reference - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 24
Overview Figure 2-5 shows the front panel components of the Convertable Minitower (CMT) form factor. Item 1 2 3 4 5 6 Description CD Item 7 8 9 10 11 12 Figure 2-5. HP Compaq dc7700 CMT Front View Decription CD-ROM drive open/close button Power button Power LED USB ports 7, 8 Headphone audio Out - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 25
, 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 26
and/or the maintenance and service guide for these systems. UIltra Slim Desktop Chassis The Ultra Slim Desktop (USDT) chassis used for the HP Compaq 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 27
HP Comapq dx7300 models are shown in Figure 2-8. Features include: ■ Tilting drive cage assembly for easy access to processor and memory 2 3 4 5 Description Power supply assembly DIMM sockets (4) PCI Express SFF / ST Chassis Layout, Top / Right Side Views Technical Reference Guide www.hp.com 2-11 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 28
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 Layout, Left Side View 2-12 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 29
desktop (horizontal) position. ■ Easy access to expansion slots and all socketed system board components. 1 23 4 5 6 w q - 7 9 8 Item Description 1 Power supply ADD2 card. Figure 2-9. CMT Chassis Layout, Left Side View (Minitower configuration) Technical Reference Guide www.hp.com 2-13 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 30
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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 33
Table 2-3. Architectural Differences By Form Factor Model USDT SFF ST MT Memory sockets 3 4 4 4 PCI Express x16 graphics slot [6] Standard [6] SATA interfaces 1 3 3 4 CMT 4 Yes Yes 4 Standard [6] 4 Notes: [1] Supports an ADD2 card in the reverse-layout. or a Guide www.hp.com 2-17 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 34
(s) [3] Keyboard Floppy Mouse Notes: NIC I/F PCI Express x1 slot Power Supply [1] USDT: reverse-layout ADD2 card or PCIe x16 graphics card (with PCIe riser card installed). SFF/ST: reverse layout graphics, ADD2, SDVO card. CMT: normal-layout graphics, ADD2, SDVO card. [2] USDT only [3] USDT - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 36
Service Reference Guide supporting power state or operating system. AMT capabilities include: ■ System asset recovery (hardware and software configuration data) ■ OS-independent system wellness and healing ■ Software (virus) protection/management 2-20 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 37
Power supply voltage 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. Technical Reference Guide www.hp - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 38
drive SFF/ST: three SATA interfaces MT/CMT: four 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 , and supports bi-directional systems support USB local area network and includes power-down, wake-up, - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 39
Memory Type DVMT 3.0 DAC Speed 400 MHz Maximum 2D Res. 2048x1536 @ 85 Hz Software Compatibility Quick Draw, DirectX 9.0, Direct Draw, Direct Show, Open GL 1.4, MPEG 1-2, Indeo Outputs 1 RGB The IGC supports dual independent display for expanding the desktop Reference Guide www.hp.com 2-23 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 41
System Overview Table 2-9 Physical Specifications Parameter USDT ST SFF MT CMT [2] Height 2.95 in (7.49 cm) 13.3 in 3.95 in . [2] Minitower configuration. For desktop configuration, swap Height and Width dimensions [3] Applicable to unit in desktop orientation only and assumes reasonable - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 42
Time: Track-to-Track (high/low) Average (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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 43
8/12 cm 8/12 cm Disc Thickness 1.2 mm 1.2 mm Track Pitch 1.6 um 1.6 um Laser Beam Divergence Output Power Type Wave Length +/- 1.5 ° 0.14 mW GaAs 790 +/- 25 nm 53.5 + 1.5° 53.6 0.14 mW : [1] IDE interface on USDT models (through SATA bridge) Technical Reference Guide www.hp.com 2-27 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 44
Drive Size 3.5 in 3.5 in Interface SATA SATA Transfer Rate 300 Gb/s 300 Gb/s Drive Protection System Support? Yes Yes Typical Seek Time (w/settling) Single Track Average Full Stroke 0.8 ms 9 ms 17 ms ms 18 ms 488,397,168 7200 RPM SMART III 2-28 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 46
Processor/Memory Subsystem 3.2 Intel Pentium Processors These systems to the SSE support provided by previous Pentium processors, the Pentium 4 processor includes an additional 144 MMX instructions, further enhancing: times that of earlier processors. 3-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 47
Memory Subsystem Figure 3-2 illustrates the basic internal architecture of an Intel Pentium single-core processor. Dual-core processors feature two cores operating in parallel. The table below provides a representative listing of supported processors. Other models may also be supported instructions - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 48
, such a condition could still result in damage to the processor component. Refer to the applicable Service Reference Guide for processor installation instructions. ïCAUTION: Installing a processor that is not supported by the system board may cause damage to the system board and/or the processor - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 49
Non-ECC memory only The SPD format supported by these systems complies with the JEDEC specification for 128-byte EEPROMs. This system also provides support for 256-byte EEPROMs to include additional HP-added features be displayed before the system hangs. Technical Reference Guide www.hp.com 3-5 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 50
factor provides only three DIMM sockets and therefore cannot match the SFF, ST, MT, and CMT form factors in maximum memory capacity. NOTE: Table 3-1 does not list all possible configurations. 1-GB 2-GB (dual-channel) 3-GB (dual-channel) 4-GB (dual-channel) 3-6 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 51
re-sent as highest order CAS# address. [4] Refer to memory manufacturer's datasheet [5] MSb is Self Refresh flag. If set (1), assembly supports self refresh. [6] Back-to-back random column addresses. [7] Intended as backup identifier (refer to note [10]). Technical Reference Guide www.hp.com 3-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 53
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 on PCI bus #2. Technical Reference Guide www.hp.com 4-1 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 54
System Support Memory Cntlr Function Q965 GMCH 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. (four bytes at a time). 4-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 55
System Support Configuration Cycles Devices on the Type 1 cycle unmodified if it is destined for a device being serviced by a downstream bridge. Figure 4-2 shows the configuration cycle format and how on Type 00 cycle. Figure 4-2. PCI Configuration Cycle Technical Reference Guide www.hp.com 4-3 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 56
System Support Table 4-1 shows the standard configuration of device numbers and IDSEL 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 57
Base U pper 32 Bits Prefetch. Mem. Limit Prefetch. Mem. Base Memory Limit Memory Base Secondar y Status I/O Limit I/O Base 2nd Lat.Tmr Sub. Bus Space Mapping PCI 2.3 Bus Master Arbitration The PCI bus supports a bus master/target arbitration scheme. A bus master is Guide www.hp.com 4-5 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 58
System 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 59
System Support Link Layer The link layer provides data integrity by adding a sequence Byte # x1 x4 x8 Transfer Transfer Transfer Lane # Lane # Lane # 0 0 0 0 1 0 1 1 2 0 2 2 3 0 3 3 4 0 0 4 5 0 1 5 6 0 2 6 7 0 3 7 Technical Reference Guide www.hp.com 4-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 60
Support This system complies with the PCI Power Management Interface Specification (rev 1.0). The PCI Power Management Enable (PME-) signal is supported by the chipset and allows compliant PCI peripherals to initiate the power management routine. 4-8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 AD13 AD11 GND AD09 Key Key C/BE0- +3.3 VDC AD06 AD04 GND AD02 AD00 +5 VDC REQ64+5 VDC +5 VDC Technical Reference Guide www.hp.com 4-9 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 PERp11 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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 63
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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 64
System Support 8259 Mode The 8259 mode handles interrupts IRQ0-IRQ15 in the legacy (AT-system) method using 8259-equivalent controller IRQ6 Diskette drive controller IRQ7 Parallel port (LPT1) IRQ2 NOT AVAILABLE (Cascade from interrupt controller 2) 4-12 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 65
System Support APIC Mode The Advanced Programmable Interrupt Controller (APIC) mode provides 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 66
System Support Maskable Interrupt processing is controlled and monitored non-maskable interrupt signals: the NMI- and the SMI-. These signals have service priority over all maskable interrupts, with the SMI- having top priority over to the microprocessor. 4-14 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 67
System Support The NMI Status System Management Interrupt) is typically used for power management functions. When power management is enabled, inactivity timers are monitored BIOS to service the SMI- according to the cause of the timeout. Although the SMI- is primarily used for power management the - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 68
System Support 4.3.2 Direct Memory Access Direct Memory Access (DMA) is a method by which a device accesses system memory without For detailed information regarding DMA operation, refer to the data manual for the Intel 82801 I/O Controller Hub. The 82801 ICH8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 69
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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 70
System Support The remaining address lines are in an undefined state during the refresh cycle. The refresh operations are 0C4h 0C6h 0C6h 0C8h 0C8h 0CAh 0CAh 0CCh 0CCh 0CEh 0CEh 0DAh 0D8h 0DAh 0DCh R/W R W W W W W W R W R W R W R W R W R W R W R R W W W 4-18 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 72
Support 4.4.2 Standard CMOS Locations Table 4-12 describes standard configuration memory locations 0Ah-3Fh. These locations are accessible through using OUT/IN assembly language instructions support 36h ECC POST test single bit Reserved 37h-3Fh Power-on password Power , power management supported - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 73
following procedure: 1. Turn off the system and disconnect the AC power cord from the outlet and/or system unit. 2. Remove the cover (hood) as described in the appropriate User Guide or Maintainance And Service Reference Guide. Insure that all system board LEDs are off (not illuminated). 3. Locate - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 74
support an Power Button RTC Alarm Wake On LAN (w/NIC) PME Serial Port Ring USB Keyboard Mouse System Wakes From Suspend or soft-off Suspend or soft-off Suspend or soft-off Suspend or soft-off Suspend or soft-off Suspend only Suspend only Suspend only 4-22 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 75
presence/seating Power supply overload failure Blinks red 4 times @ I Hz [1] 4 Check system board problem [3], Memory error (pre support an auxiliary chassis fan. All fans are controlled through temperature sensing logic on the system board and/or in the power supply Guide www.hp.com 4-23 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 76
System Support 4.6 Register Map and Miscellaneous Functions This section contains the system I/O map and information on general-purpose functions of 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 77
Support 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 78
Support guide utilize the following specialized functions built into the LPC SCH5317 I/O Controller: ■ Power . ■ Hood lock/unlock-Supported on SFF, ST, MT, and CMT form factors, logic internal to /ACPI power button mode control-The SCH5317 receives the pulse signal from the system's power button - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 79
Interfaces These systems provide one, three, or four serial ATA (SATA) interfaces that support tranfer rates up to 3.0 Gb/s and RAID data protection functionality. The SATA interface duplicates systems may require using Setup (F10) for drive configuration. Technical Reference Guide www.hp.com 5-1 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 80
IDE Command (Secondary) 2 Bus Master IDE Status (Secondary) 4 Bus Master IDE Descriptor Pointer (Secondary Default Value 00h 00h 0000 0000h 00h 00h 0000 0000h 5-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 81
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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 82
Input/Output Interfaces 5.3 Diskette Drive Interface The MT and CMT form factors support a diskette drive through a standard 34-pin diskette drive connector. Selected (this activates the interface). Writing AAh to 2Eh deactivates the configuration phase. 5-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 84
(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 5-6 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 85
(active high) Data Rate Select Register (DRSR): Software reset (active high) Low power mode enable (active high) Reserved (0) Precompensation select (default = 000) Data data rate value to either DRSR or CCR will be in effect. Technical Reference Guide www.hp.com 5-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 86
Diskette Drive Connector The 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 through a separate connector DSK CHG- Drive door opened indicator 5-8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 87
is provided by the SCH5317 I/O controller component that includes two NS16C550-compatible UARTs. The UART supports the standard baud rates up through 115200, and also special high speed rates of 239400 and registers of the SCH5317 I/O controller. Technical Reference Guide www.hp.com 5-9 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 88
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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 89
a hardware protocol that provides automatic address and strobe generation. EPP revisions 1.7 and 1.9 are both supported. For the parallel interface to be initialized for EPP mode, a negotiation phase is entered to includes address lines A0, A1, and A2. Technical Reference Guide www.hp.com 5-11 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 90
Port (ECP) mode, like EPP, also uses a hardware protocol-based design that supports transfers up to 2 MB/s. Automatic generation of addresses and strobes as well as Run Select R/W 04h F0h Mode Register R/W 00h F1h Mode Register 2 R/W 00h 5-12 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 91
,2 LPT1,2 LPT1,2 LPT1,2 ------- Base Address: LPT1 = 378h LPT2 = 278h LPT3 = 3BCh ECP Mode Ports LPT1,2,3 LPT1,2,3 LPT1,2,3 -----LPT1,2,3 LPT1,2,3 LPT1,2,3 LPT1,2,3 LPT1,2,3 LPT1,2,3 Technical Reference Guide www.hp.com 5-13 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 92
Feed or Host Acknowledge [3] EPP mode: user defined ECP modes:Fault or Peripheral Req. [4] EPP mode: Reset ECP modes: Initialize or Reverse Req. 5-14 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 93
a command from the 8042, the keyboard returns an ACK code. If a parity error or timeout occurs, a Resend command is sent to the 8042. Technical Reference Guide www.hp.com 5-15 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 94
commands are not acknowledged. F0h Instructs the keyboard to select another Instructs keyboard to clear output buffer and last typematic key and begin key scanning. F5h Resets keyboard to power -on default state and halts scanning pending next 8042 command. F6h Resets keyboard to power - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 95
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.com 5-17 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 96
■ Status reads ■ Command writes Ports 60h and 64h can be accessed using the IN instruction for a read and the OUT instruction for a write. Prior to reading data from port 60h, the "Output Buffer Full" status multibyte command that was written to 64h 5-18 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 97
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 line of the pointing device interface. Technical Reference Guide www.hp.com 5-19 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 98
. Pulse output port. Controls the pulsing of bits of the output port (0 = pulse, 1 = don't pulse). Note that pulsing bit will reset the system. 5-20 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 100
supports hot-plugging of compatible devices, making possible system configuration changes without powering down 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 hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 102
. 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 103
of chassis) Table 5-20. USB Connector Pinout Pin Signal Description Pin Signal Description 1 Vcc +5 VDC 3 USB+ Data (plus) 2 USB- Data (minus) 4 GND Ground Technical Reference Guide www.hp.com 5-25 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 104
sub-channel (1.5 MB/s) operation and/or when using sub-standard cable shorter lengths may be allowable and/or necessary. The shield, chassis ground, and power ground should be tied together at the host end but left unconnected at the device end to avoid ground loops. Color code Signal Insulation - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 105
In (Record In) jacks, an amplifier's Line In jacks, or to powered speakers that contain amplifiers. 82801 ICH HD Audio Interface PC Beep HD Audio (mono). [1] MT/CMT only [2] SSF, ST, MT, and CMT only. Figure 5-10. Audio Subsystem Functional Block Diagram Technical Reference Guide www.hp.com 5-27 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 106
ICH component and supports the following functions: ■ Read/write access to audio codec registers ■ Support for greater than driven by the audio controller. When asserted (typically during a power cycle), the RESET- signal (not shown) will reset all audio 5-28 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 107
the digital-to-analog converter (DAC). The codec supports simultaneous record and playback of stereo (left and right PC Beep In Mux/Gain Line Audio Out PB Gain HP Audio Out PB Gain Mux REC Gain ADC w/SRC both left and right channel information. [1] CMT form factor only. Figure 5-12. ALC262 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 108
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. 5-30 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 109
HD Audio Codec Commands Verb Value Verb Value Verb Value Get Parameter F00h Set Power State 705h Get GPIO Enable Mask F16h Get Connection Select F01h Get Conv. Stream 002h Get GPIO Data F15h Set Volume Knob Widget 70Fh Get Power State F05h Set GPIO Data 715h -- -- NOTE: Refer to - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 110
32 0hms Signal-to-Noise Ratio ADC DAC 90 db (nom) 100 db (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 1.5 db Master Volume Range -94.5 db Frequency Response: ADC/DAC Internal Speaker 16 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 111
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 and provides - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 112
client system that is connected to a network with an ASF-compliant management console. 5.9.3 Power Management Support The NIC features Wired-for-Management (WfM) support power management mode. The following wakeup events may be individually enabled/disabled through the supplied software driver: - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 113
registers mapped in variable I/O space. The BIOS for theNIC is contained within the HP/Compaq BIOS in system ROM. Refer to Intel documentation for details regarding 82566 register Figure 5 14. RJ-45 Ethernet TPE Connector (as viewed from rear of chassis) Technical Reference Guide www.hp.com 5-35 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 114
NIC Specifications Parameter Modes Supported Standards Compliance OS Driver Support Boot ROM Support F12 BIOS Support Bus Inteface Power Management Support Table 5-25. NIC /100 Boot Agent (PXE 3.0, RPL) Yes PCI Express x1 ACPI, PCI Power Management Spec. 5-36 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 115
into the Q965 GMCH component. This graphics subsystem employs the use of system memory to provide efficient, economical 2D and 3D performance. These systems may be page 6-4 ■ Upgrading graphics (6.4) , page 6-5 ■ VGA Monitor connector (6.5), page 6-6 Technical Reference Guide www.hp.com 6-1 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 116
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-Based Graphics, Block diagram The IGC provides the following features: ■ 2x performance over - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 117
supports support supporting Z-bias and up to 1600 x 1200 w/32-bit color @ 85 hz refresh ■ Video DVD support: The IGC uses a portion of system memory for instructions memory installed less the amount of pre-allocated memory drivers, the pre-allocated memory will then be re-claimed by the drivers memory - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 118
memory installed is over 128 MB). ✎ Some applications, particularly games that require advanced 3D hardware acceleration, may not install or run correectly on systems using the IGC. 6.3 Display Modes The IGC supports factors: ■ Memory speed and amount ■ Single or dual channel memory ■ Number and - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 119
-E x16 slot of SFF, ST, MT, and CMT systems can accept support and/or dual-monitor support allowing display-cloning or extended desktop functionality. Software drivers the chassis cover. 6. Reconnect the power cord to the system unit. 7. Power up the system unit and enter the Guide www.hp.com 6-5 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 124
Four Seconds Before Release: If the button is held in for at least four seconds and then released, PS On is negated, de-activating the power supply. 7-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 128
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 values are VDC. RTN = Return (signal ground) sns = sense GND = Power ground RS = Remote sense FO = Fan off FSpd = Fan speed FS = - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 132
LED P8 P6 P5 P3 +12 VccP +3.3, +5, +5 Aux, +12 VDC P1 PS On, POK Power Supply Assembly P10 Diskette I/F Diskette System Board 404227-001 SATA I/F 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 133
+12 VccP P3 +3.3, +5, +5 Aux, +12 VDC P1 PS On, POK Power Supply Assembly P10 Diskette I/F Diskette System P60 Board MT: 404276-001 CMT: 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 134
, 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) Not connected Figure 7-8. System Board Header Pinouts 7-14 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 135
only memory (ROM). The BIOS ROM includes such functions as Power-On Self Test (POST), PCI device initialization, Plug 'n Play support, power ■ Client management functions (8.5), page 8-16 ■ SMBIOS support (8.6), page 8-18 ■ USB legacy support (8.7), page 8-18 Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 136
hard drive, or processor. All BIOS ROM upgrades are available directly from HP. Flashing is done either locally thrugh F10 setup, the HPQFlash program in , the boot block code provides the minimum amount of support necessary to allow booting the system from the diskette drive and re-flashing the - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 137
width) x 320 (height) pixels ■ Colors = 16 (4 bits per pixel) ■ File Size = < 64 KB The Image Flash utility can be invoked at a command line Boot Functions The BIOS supports various functions related to the boot process, including those that occur during the Power On Self-Test Guide www.hp.com 8-3 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 138
Support The BIOS supports NetPC-compliant server. 8.3.3 Memory Detection and Configuration This system Chapter 3, "Processor/Memory Subsystem" for the SPD format and DIMM The BIOS performs memory detection and configuration be supported by the DIMMs. 3. Determine the memory size for each DIMM - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 139
Power failure (power supply is overloaded). Check stroage devices, expansion cards and/or system board (CPU power connector P3). 5 beeps Pre-video memory System powers on but fails to boot. Check power supply, CPU, system board. None Bad option card. Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 140
functions involving security, power management, and releasing the computer's power button, press and File System Information Lists: • Product name • Processor type/speed/stepping • Cache size (L1/L2) • Installed memory BIOS image from Setup. The binary file can be obtained from a USB Support for - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 141
BIOS ROM Heading File (continued) Option Ignore Changes and Exit Save Changes and Exit Table 8-2 Setup 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 142
manually. BIOS DMA Data Transfers Allows you to control how BIOS disk I/O requests are serviced. When "Enable" is selected, the BIOS will service is selected, the BIOS will service ATA disk read and write requests Device 1 replaces SATA 3 ✎ Support for specific Computer Setup options may vary depending - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 143
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 on the hardware configuration. Technical Reference Guide www.hp.com 8-9 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 144
power-on password is set.) Smart Cover Embedded Security Device Security Network Service supported on select models only. See the Desktop Management Guide supported on select models only. See the Desktop Management Guide the Desktop Management Guide on Support for specific Computer Setup options may vary - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 146
feature will display the text F12=Network Service Boot during POST. Disabling this feature supported on select models only.) • Remote wakeup boot source (remote server/local hard drive). • After Power Loss (off/on/previous state): After power loss, if you connect your computer to an electric power - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 147
memory manager, HIMEM.SYS, does not work properly when USB buffers are at top of memory AND the system has 64 MB or less of RAM Memory Test When selected, will reboot system and perform a complete memory test. BIOS Power- installed. ✎ Support for specific Computer Setup options may - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 148
ECP, output only). • Num Lock state at power-on (off/on). • S5 Wake on LAN ." This obtains the lowest power consumption available on the computer and reduces the power used by the The NIC option ROM takes up memory space below 1MB commonly referred to Support for specific Computer Setup options may - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 149
[1] Get system memory map Real E81Ah Write Service Directory is a 16-byte block that begins on a 16-byte boundary between the physical address range of 0E0000h-0FFFFFh. The following subsections provide a brief description of key Client Management functions. Technical Reference Guide www.hp - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 150
Subsystem System ID Device ID USDT 0A5Ch 2803h SFF/ST: 0A54h 2801h MT: 0A50h 2800h CMT: 0A58h 2802h NOTE: For all systems, directly supports Drive Fault Prediction for IDE (ATA)-type hard drives. This feature is provided through two Client Management hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 151
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 not supported. Technical Reference Guide www.hp.com 8-17 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 152
BIOS ROM 8-18 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 154
Warning Unbalanced memory configuration. 219-ECC Memory Module Detected ECC Modules not supported on this platform Recently added memory module(s) support ECC memory error correction. 512-Chassis Fan Not Detected Chassis fan is not connected. A-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 155
is not Connected Smart Cover Lock mechanism is missing or not connected. 916-Power Button Not Connected Power button harness has been detached or unseated from the system board. 917-Expansion Riser 1 connectors must be used before SATA 2 and SATA 3. Technical Reference Guide www.hp.com A-3 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 enabled. No Keyboard Attached Parity Check 2 Keyboard failure while Network Server Mode enabled. A-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 157
Way 0 read/write test failed 107-01 CMOS RAM test failed 162-xx Sys. options failed (mismatch 03 CMOS not properly initialized (int.test) 164-xx Memory size 109-01 CMOS clock load data test failed 199 variety of processor-related problems that may be solved by replacing the processor - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 159
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 LED test, LED command test failed -- -- Technical Reference Guide www.hp.com A-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 160
test failed 510-01 640x200 mode test failed 504-01 Video character set test failed 511-01 Screen memory page test failed 505-01 80x25 mode, 9x14 cell test failed 512-01 Gray scale test failed See Table A-14 for additional video (graphics) messages. A-8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 161
360-KB drive 697-00 = Diskette type error 698-00 = Drive speed not within limits 699-00 = Drive/media ID error (run Setup) Technical Reference Guide www.hp.com A-9 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 162
COM2 set to invalid INT 1152-xx COM2 address conflict 1101-12 DRVR/RCVR cntrl. signal failure 1155-xx COM port address conflict A-10 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 163
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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 164
System Status Error Messages (16xx-xx) Message 1601-xx 1611-xx Table A-11 System Status Error Messages Probable Cause Temperature violation Fan failure A-12 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 165
Exceeded max. Hard error limit 17xx-52 Failed file I/O compare test 17xx-03 Previously exceeded max. error while reading 17xx-56 Failed controller RAM diagnostics 17xx-07 Fatal error while table to RAM 17xx-72 Bad track limit exceeded 17xx-49 Failed to read media in file write test 17xx - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 166
00, Hard drive ID test xx = 19, Hard drive power mode test xx = 01, Hard drive format test xx 10, Hard drive park head test xx = 90, Disk 0 failure xx = 14, Hard drive file write test xx = 91, Disk 1 failure xx = 15, Hard drive head select test xx A-14 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 167
19xx-19 Write (probably ID ) error 19xx-40 Failed self-test 19xx-20 NEC fatal error 19xx-91 Power lost during test 1900-xx = Tape ID test failed 1901-xx = Tape servo write failed 1902-xx = R/W compare test failed 1907-xx = Tape write-protect failed Technical Reference Guide www.hp.com A-15 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 168
Message Probable Cause Video memory test failed 2418-02 EGA shadow RAM test failed Video attribute 01 640x480 graphics mode test failed Screen memory page test failed 2432-01 320x200 256- resp. 2478-xx AVGA BitBLT test failed EGA memory test failed 2480-xx AVGA linedraw test failed - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 169
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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 170
6nyy-32 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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 171
button is inoperative 8601-10 Pointing device is inoperative Right mouse button is stuck closed 8602-xx I/F test failed Left block not selected -- -- Technical Reference Guide www.hp.com A-19 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 172
Error Messages and Codes A-20 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 173
47 2F / 79 4F O 111 6F 16 10 4 48 30 0 80 50 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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 174
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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 176
ASCII Character Set B-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 177
keys for specific support of the Windows one type of keyboard is supplied with each system. Other types Power (+5 VDC) is obtained from the system through the PS/2-type interface. The keyboard uses a Z86C14 (or equivalent) microprocessor. The Z86C14 scans the key matrix drivers Guide www.hp.com C-1 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 178
Drivers Matrix Receivers Keyboard Processor Data/ CLK Keyboard Interface (System Unit) Figure C-1. Keystroke Processing Elements, Block Diagram When the system is turned on, the keyboard processor generates a Power keystroke can be registered. C-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 179
code). The 8042-type logic 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 180
leaving the keyboard) to comply with the USB I/F specification (discussed in chapter 5 of this guide). Packets received at the system's USB I/F and decoded as originating from the keyboard result in 91 Figure C-4. National (102-Key) Keyboard Key Positions C-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 181
37 38 55 56 57 72 73 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 182
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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 183
keys provide special functions that require specific support by the application. Print Scrn-The the function is removed. This keystroke is always serviced by the BIOS (as indicated by the LED function), Insert, Home, Page Up/Down, Delete, and End keys operate at the discretion Guide www.hp.com C-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 184
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) with other keys for invoking Windows application functions. C-8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 185
5 Business 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 186
Read ID command from the system, the keyboard issues the ACK command followed by the two IDS bytes. Note: [1] Modes 2 and 3. [2] Mode 1 only. C-10 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 187
09/F0 09 4F/na 12 F11 57/D7 78/F0 78 56/na 13 F12 58/D8 07/F0 07 5E/na Technical Reference Guide www.hp.com C-11 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 188
/E0 F0 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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 189
/F0 4D 50 [ 1A/9A 54/F0 54 54/F0 54 51 ] 1B/9B 5B/F0 5B 5B/F0 5B 52 Delete E0 53/E0 D3 E0 71/E0 F0 71 E0 AA E0 53/E0 D3 E0 2A [4] E0 F0 12 E0 71 [6] 6C/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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 190
/F0 22 21/F0 21 2A/F0 2A 32/F0 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 23/F0 23 2B/F0 2B 34/F0 34 33/F0 /F0 22 21/F0 21 2A/F0 2A 32/F0 32 31/F0 31 3A/F0 3A 41/F0 41 49/F0 49 Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 191
7B/F0 7B 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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 192
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 Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 194
Keyboard C-18 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 195
CMOS, clearing 4-19 Computer Setup (Utility)8-6 configuration memory 4-19 D Direct Memory Access (DMA) 4-16 Diskette Drive Connector 5-8 power states 7-7 Processor Upgrading 3-3 R Real-time clock (RTC) 4-19 ROM flashing 8-2 S SATA 5-1 SATA Connector 5-3 SDVO 6-2 Technical Reference Guide www.hp - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 196
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 Corporation 1-1 Standard Microsystems Corporation 1-1 USB user group 1-1 Index-2 www
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.