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
follow directions could result in damage to equipment or loss of information. ✎ Text set off in this manner provides infomation that may be helpful. Technical Reference Guide HP Compaq dx7300 and dc7700 Series Business Desktop Computers First Edition (September 2006) Document Part Number: 433473-001 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 3
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 5 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 4
Processor/Memory Subsystem 3.1 Introduction 3-1 3.2 Pentium 4 Processor 3-2 3.2.1 Processor Overview 3-2 3.2.2 Processor Upgrading 3-3 3.3 Memory Subsystem 3-4 4 System Support Map 4-24 4.6.2 SCH5317 I/O Controller Functions 4-25 5 Input/Output 5-12 6 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 5
5.7.4 USB Cable Data 5-26 5.8 Audio Subsystem 5-27 5.8.1 HD Audio Controller 5-28 5.8.2 HD Audio Link Bus 5-28 5.8.3 Audio Codec 5-29 5.8.4 Audio Programming 5-30 5.8.5 Audio Specifications 5-32 5.9 Network Interface Controller 5-33 5.9.1 Wake-On-LAN Support 5-34 5.9.2 Alert Standard Format - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 6
Contents 8 BIOS ROM 8.1 Introduction 8-1 8.2 ROM Flashing 8-2 8.2.1 Upgrading 8-2 8.2.2 Changeable Splash Screen 8-3 8.3 Boot Functions 8-3 8.3.1 Boot Device Order 8-3 8.3.2 Network Boot (F12) Support 8-4 8.3.3 Memory Detection and Configuration 8-4 8.3.4 Boot Error Codes 8-5 8.4 Setup - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 7
1 Introduction 1.1 About this Guide This guide provides technical information about HP Compaq dx7300 and dc7700 series personal computers that feature Intel Pentium processors and the Intel Q965 chipset. This document describes in detail the system's design and operation for programmers, engineers - 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
and IRQ signal 9 1.5.3 Register Notation and Usage This guide uses standard Intel naming conventions in discussing the microprocessor's (CPU) internal registers. Registers that are accessed through programmable I/O the MSB on the left, LSB on the right. Technical Reference Guide www.hp.com 1-3 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 10
BNC Bayonet Neill-Concelman (connector type) bps or b/s BSP bits per second Bootstrap processor BTO Built to order CAS column address strobe CD CD-ROM CDS 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
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 adapter Electronic Industry Association extended ISA enhanced parallel port enhanced IDE www.hp.com 1-5 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 12
) Environmental Variable (data) Exchangeable Card Architecture first in/first out flag (register) frequency modulation fast page mode (RAM type) Floating point unit (numeric or math coprocessor) Frames per second Foot/feet gigabyte Graphics/memory controller hub ground general purpose I/O general - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 13
byte logical unit (SCSI) Meter Memory controller hub multimedia extensions Motion Picture Experts Group millisecond most significant bit/most significant byte multiplex motion video acceleration motion video window variable parameter/value network interface card/controller nickel-metal hydride non - 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
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 - 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
features are included on all series unless otherwise indicated: ■ Intel Pentium processor in LGA775 (Socket T) package ■ Integrated graphics controller ■ PC2-6400 and PC2-5300 DIMM support on all models ■ Serial ATA (SATA) interfaces supporting transfer rates up to 3.0 Gbps and RAID operation for - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 19
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: # of sockets Maximum memory Memory type 3 3 GB DDR2 4 4 GB DDR2 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 20
tower stand. ■ Slim Tower (ST)-Slim design that can be used in a tradition desktop (horizontal) orientation or as a small tower (default) mounted in the supplied tower stand. ■ MicroTower (MT)-Compact tower design that is easily placed on a desktop or floor ■ Convertible Minitower (CMT) -an ATX-type - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 21
. 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 Technical Reference Guide www.hp.com 2-5 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 23
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 Guide www.hp.com 2-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 24
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-ROM drive open/close button Power button Power LED USB ports 7, 8 Headphone audio Out jack Microphone audio In jack 2-8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 26
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 card cage Processor - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 27
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 sockets ■ Two configurations available: ❏ Without card cage: ◆ Two - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 28
the Microtower (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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 29
Expansion board area PCI 2.3 slots PCI Express x1 slot PCI Express x16 graphics/normal-layout SDVO slot [1] Chassis fan NOTE: [1] Accepts PCI-E graphics or normal-layout 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
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 - 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
guide include the following key components: ■ Intel Pentium 4, Pentium D, or Core 2 Duo processor. ■ Intel Q965 Express chipset - Includes Q965 GMCH north bridge and 82801 ICH8-DO south bridge ■ SMC SCH5317 super I/O controller supporting PS/2 keyboard and mouse peripherals ■ ALC262 audio controller - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 35
covered in this guide support the following processor types: ■ Intel Pentium Processor Extreme Edition - dual-core design with Hyper-Threading (HT) technology ■ Intel Pentium D Processor - dual-core design ■ Intel Pentium 4 Processor - single-core design with HT technology ■ Intel Core2 Duo - (when - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 36
one of the same type when replacing the processor. Refer to the applicable Service Reference Guide for detailed removal and replacement procedures of the heatsink/fan assembly and the processor. 2.4.2 Chipset The Intel Q965 Express chipset consists of a Graphics Memory Controller Hub (GMCH) and an - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 37
) 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-to-digital 2-channel converters Analog I/O 2-channel audio support 2.4.4 System Memory These systems - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 38
selection of 10BASE-T, 100BASE-TX, or 1000BASE-T operation with a local area network and includes power-down, wake-up, and Alert-On-LAN (AOL), and Alert Standard Format (ASF) features. An RJ-45 connector with status LEDs is provided on the rear panel. 2-22 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 39
signal interfaces, and higher signal-to-noise ratio audio processors. These systems include a 1.5-watt output amplifier driving an internal speaker. All models feature front panel-accessible stereo microphone in and headphone out audio jacks as standard. Technical Reference Guide www.hp.com 2-23 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 40
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 90-264 VAC 50-60 Hz 47-63 Hz 200 watts 240 watts 365 watts 2 A @ 200 VAC 2.5 A @ 200 VAC 3.0 A @ 200 VAC 2-24 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 41
Overview Table 2-9 Physical Specifications Parameter USDT ST SFF MT CMT [2] Height 2.95 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.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 Sectors per 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
25 nm 53.5 + 1.5° 53.6 0.14 mW GaAs 790 +/- 25 nm Average Access Time: Random Full Stroke - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 44
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 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
uses a 200-MHz clock for qualifying the buses' control signals. However, address information is transferred using a 2x strobe while data is transferred with a 4x strobe, providing a maximum data transfer rate that is four 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
as was the case in earlier generation Pentium processors. The Pentium processor is compatible with software written for x86 processors. These systems also support the Intel Celeron D processors and the energy-efficient Intel CoreT M 2 Duo processors. Technical Reference Guide www.hp.com 3-3 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 48
. 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. Processors rated above 95 watts are not recommended. 3.3 Memory Subsystem - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 50
Processor/Memory Subsystem Table 3-1 shows suggested memory configurations for these systems. Note that the USDT form factor provides only three DIMM sockets and therefore cannot match the SFF, ST, MT, and CMT form factors in maximum memory (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
Number OEM's Rev. Code Manufacture Date OEM's Assembly S/N OEM Specific Data Intel frequency check Reserved Compaq header "CPQ1" Header checksum Contains the socket # of the module (first module is "1"). 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
the systems covered in this guide. For detailed information on specific components, refer to the applicable manufacturer's documentation. 4.2 PCI Bus bus operation, refer to the appropriate PCI specification or the PCI web site: www.pcisig.com. These systems implement the following types of PCI - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 54
Support Memory Cntlr Function Q965 GMCH PCI Bus 0 Host-DMI Bridge Integrated Graphics Controller Host-PCI Exp. Bridge RGB Monitor PCI Express x16 graphics slot [1] DMI Link DMI PCI 2.3 Bridge Function PCI Exp. Port 1 Function 82801 ICH8 PCI Bus 1 NIC. Function SATA USB I/F LPC HD Audio - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 55
and specific register Type 00 Config. Cycle) IDSEL (only one signal line asserted) Function Register Number Index NOTES: [1] Bits : 00 = Type 0 Cycle, 01 = Type 1 cycle Type 01 cycle only. Reserved on Type 00 cycle. Figure 4-2. PCI Configuration Cycle Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 57
device can simply assert FRAME and conduct the transaction. Table 4-3 shows the grant and request signals assignments for the devices on the PCI bus. Technical Reference Guide www.hp.com 4-5 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 58
space allows in-band processing of interrupts through use of the Message Signal Interrupt (MSI) introduced with the PCI 2.2 specification. The MSI method eliminates the need for hard-wired sideband signals by incorporating those functions into packets. 4-6 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 59
Support Link Layer The link layer provides data integrity by adding a sequence information prefix and a CRC suffix to the packet created by the transaction layer. Flow-control Board TX Device A RX PCI Express Card 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
the physical layer is transparent to the other layers and to software/drivers. The SFF, ST, MT, and CMT form factors provide two PCI Express slots: a PCI Express x16 (16-lane) slot specifically designed for a graphics controller, and a general purpose PCI Express x1 (1-lane) slot. 4.2.3 Option ROM - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 61
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 VDC +5 VDC 37 DEVSEL- GNT- 38 GND GND 39 LOCK- PME- 40 PERR- AD30 41 +3.3 VDC +3.3 VDC 42 SERR- A Signal Pin AD28 Reference Guide www.hp.com 4-9 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 62
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 VDC 38 PETn5 PERST# 39 GND GND 40 GND REFCLK+ 41 PETp6 REFCLK- 42 PETn6 hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 63
types of hardware interrupts; maskable and nonmaskable. A maskable interrupt can be enabled or disabled within the microprocessor by the use of the STI and CLI instructions then services the peripheral as appropriate. Most IRQs are routed through the I/O controller of Reference Guide www.hp.com 4-11 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 64
I/F controller (not available on SATA units) IRQ3 Serial port (COM2) IRQ4 Serial port (COM1) IRQ5 Network interface controller IRQ6 Diskette drive controller IRQ7 Parallel port (LPT1) IRQ2 NOT AVAILABLE (Cascade from interrupt controller 2) 4-12 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 65
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.com 4-13 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 66
2-4, Int. Cntlr. 2 The initialization and operation of the interrupt control registers follows standard AT-type protocol. Non-Maskable Interrupts Non-maskable interrupts cannot be masked (inhibited) which in turn activates the NMI 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
Support The NMI Status Register at I/O port 061h contains NMI source and status data as follows: NMI Status Register 61h Bit Function 7 NMI Status: 0 = No NMI from system board and cleared (R/W) 2 System Board Parity Error (PERR/SERR) works with the APM BIOS to service the SMI- according - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 68
drive controller. The PC/PCI DMA mode uses the REQ#/GNT# signals to communicate DMA channel control and is used by PCI expansion devices. The DMA logic is accessed through two types of I/O mapped registers; page registers and controller registers. 4-16 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
(Command) 00Dh Reset Mask Register (Command) 00Eh Controller 2 0D0h 0D0h 0D6h 0D4h 0DEh 0D2h 0C0h 0C0h 0C2h 0C2h 0C4h 0C4h 0C6h 0C6h 0C8h 0C8h 0CAh 0CAh 0CCh 0CCh 0CEh 0CEh 0DAh 0D8h 0DAh 0DCh R/W R W W W W W W R W R W R W R W R W R W R W R R W W W 4-18 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 71
chassis hood (cover). 6. Reconnect the AC power cord to the outlet and/or system unit. 7. Turn the unit on. To clear only the Power-On Password refer to section 4.5.1. Technical Reference Guide www.hp.com 4-19 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 73
is powered up and the user completes the boot sequence successfully, at which time the bit will be cleared. Through Setup, the user can set this function to be used by Alert-On-LAN and or one of three levels of support for a "cover removed" condition: Technical Reference Guide www.hp.com 4-21 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 74
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 listed as follows: ACPI Wake-Up Event Power Button RTC Alarm Wake On LAN (w/NIC) PME Serial Port - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 75
red 4 times @ I Hz [1] 4 Check system board problem [3], Memory error (pre-video) Blinks red 5 times @ I Hz [1] 5 Check DIMMs, system board Video error Blinks red 6 times @ I Hz [1] 6 Check graphics card or system board PCA failure detected by BIOS (pre-video) Blinks red 7 times @ I Hz - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 77
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.com 4-25 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 78
and blink control for the front panel LEDs used for indicating system events (refer to Table 4-14). ■ Intruder sensing-The battery-backed D-latch logic internal to the SCH5317 is connected to the hood sensor switch to record hood (cover) removal. ■ Hood lock/unlock-Supported on SFF, ST, MT, and CMT - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 79
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 Guide www.hp.com 5-1 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 80
Latency Timer 00h 3Dh Interrupt Pin 01h 0Eh Header Type 00h 40-57h Timing, Control All 0's SATA Bus Master Control Registers The SATA interface can perform PCI bus master operations (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
Pin SATA Connector (P60-P63 on system board). Table 5-3. 7-Pin SATA Connector Pinout Functionality The ICH8 DO component includes Intel RAID migration technology that simplifies 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
the I/O controller is software-compatible with standard 82077-type logic. The diskette drive controller has three control, which occurs at runtime. Diskette Drive Interface Configuration The diskette drive controller must be configured for a specific . 5-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 83
DMA Channel Select R/W 02h F0h DD Mode R/W 02h F1h DD Option R/W 00h F2h DD 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
diskette drive controller of the SCH5317 operates in the PC/AT mode in these systems. Table 5-5. Diskette Drive Interface Control Registers Primary 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
(0's) Configuration Control Register (CCR): Reserved Data rate select (00 = 500 Kb/s, 01 = 300 Kb/s, 10 = 250 Kb/s, 11 = 2/1 Mb/s) R/W R W R/W -R W NOTE: The most recently written 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
5.3.2 Diskette Drive Connector The SFF, ST, MT, and CMT form factors use a standard 34-pin connector for diskette drives (refer to Figure 5-2 and Table Signal Description Ground 18 DIR- Drive head direction control Low density select 19 GND Ground (KEY) 20 hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 89
to EPP timing. A watchdog timer is used to prevent system lockup. Five additional registers are available in EPP mode to handle 16- and 32-bit CPU accesses with the parallel interface. Address decoding includes address lines A0, A1, and A2. Technical Reference Guide www.hp.com 5-11 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 90
is supported by ECP mode. The ECP mode includes a bi-directional FIFO buffer that can be accessed by the CPU using DMA control, which occurs during runtime. Parallel Interface Configuration The parallel interface must be configured for a specific 00h 5-12 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 91
of INT 17. The parallel interface is controllable by software through a set of I/O mapped registers. The number and type of registers available depends on the mode used 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
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] 25 GND -- -- 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
status. The keyboard interface uses IRQ1 to get the attention of the CPU. The 8042 can send a command to the keyboard at any Tsh Figure 5-5. 8042-To-Keyboard Transmission of Code EDh, Timing Diagram Control of the data and clock signals is shared by the 8042and the Reference Guide www.hp.com 5-15 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 94
ms 00001 = 26.6 ms 00010 = 24.0 ms 00011 = 21.8 ms : 11111 = 2.0 ms F4h Instructs keyboard to clear output buffer and last typematic key and begin key scanning. F5h Resets keyboard to power-on default buffer and sets default scan code set. [1] 5-16 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 95
Set Type Key-Typematic FBh Clears keyboard buffer and prepares to receive key ID. [1] Set Type Key- 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.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 96
Reset and A20 Select R/W 8042 Control The BIOS function INT 16 is typically used for controlling interaction with the keyboard. Sub- by the CPU will be transferred to the keyboard except bytes that follow a 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
1 Input Buffer Full. Set (to 1) upon a CPU write. Cleared by IN A, DBB instruction. 0 Output Buffer Full (if set). Cleared by a CPU read of the buffer. A CPU write to I/O port 64h places a command value into clock 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
pointing device data. Directs the 8042 to send back to the CPU the next byte written to port 60h as if it originated from 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
/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
rate of 480 Mb/s. Table 5-17 shows the mapping of the USB ports. USB ICH8 Controller USB 1.1 #1, USB 2.0 #1 USB 1.1 #2 USB 2.0 #1 USB 1.1 #3 USB ICH8 USB Port Mapping USB Connector Location USDT, SFF, ST Form Factors MT & CMT Form Factors Rear panel quad USB hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 101
The USB transmissions consist of packets using one of four types of formats (Figure 5-8) that include two or more of seven field types. ■ Sync Field-8-bit field that starts every 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
, and control, which occurs at runtime. USB Configuration Each USB controller functions as Address Register Reset Value 00, 01h Vendor ID 8086h 0Eh Header Type 00h 02, 03h Device ID [1] 20-23h I/O Space Base 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
12, 13h Port 2 Status/Control 18h Test Data Default Value 0000h 0000h 0000h 0000h 0000h 40h 0080h 0080h 00h 5.7.3 USB Connector These systems provide type-A USB ports as shown in Figure 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
should be no longer than sixteen feet for full-channel (12 MB/s) operation, depending on cable specification (see following table). Table 5-21. USB Cable Length Data Conductor Size Resistance Maximum Length 20 Data - White Vcc Red Ground Black 5-26 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 105
Headphones Out Line Audio Out (L/R) Line Out NOTES: L/R = Separate left and right channels (stereo). L+R = Combined left and right channels (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
out (SDO, from the controller) and serial data in (SDI, from the audio codec) that transfer control and PCM audio data serially to and from the audio codec using a time- C RST# NOTE: Clock not drawn to scale. Figure 5-11. HD Audio Interface Protocol 5-28 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 108
Type 00h 4C, 4Dh Docking Control/Status 0080h 10-13h HD Audio Lower Base 4 50-14Fh -HD audio functions [1] Addr. NOTE: Values without "h" suffix (denoting hexidecimal value) are decimal. [1] Refer to Intel data sheet for more information. 5-30 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 109
Input/Output Interfaces Audio Control The audio subsystem is controlled through a set of verb commands listed in Table 5-23. Table 5-23. HD Audio Codec Commands 715h -- -- NOTE: Refer to vendor data sheet for more information. Get Converter Format Technical Reference Guide www.hp.com 5-31 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 110
Output Interfaces 5.8.5 Audio Specifications The specifications for the HD Audio subsystem are listed in Table 5-24. Table 5-24. HD Audio Subsystem Specifications Parameter Measurement Hz 450-4000 Hz NOTE: [1] Device driver limitation: 48 KHz 5-32 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 111
Diagram The Network Interface Controller includes 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 112
■ Flexible packet filtering-Packets that match defined CRC signature The PROSet Application software (pre-installed and accessed through the System Tray or Windows Control Panel) allows configuration of operational parameters such as WOL and duplex mode. 5-34 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 113
occurs during POST, and control, which occurs at runtime. The Intel 82566 NIC is configured as 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 system ROM. Refer to Intel documentation for details regarding - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 115
a PCIe x1 slot, which will disable the integrated controller. This chapter covers the following subjects: ■ Functional description (6.2), page 6-2 ■ Display Modes (6.3), 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
(or released) by the controller. ■ Intelligent memory management allowing tiled memory addressing, deep display buffering, and dynamic data management. ■ Provides two serial digital video out (SDVO) channels for use by an appropriate ADD2 accessory card. 6-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 117
video) may be reported in a message on the screen, depending on the operating system and/or applications running on the machine. For viewing the maximum amount of available frame buffer memory MS Windows 2000 or XP, go to Display Properties > Settings> Adapter. Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 118
: ■ Memory speed and amount ■ Single or dual channel memory ■ Number and type of monitors ✎ The IGC is designed for optimum performance with multi-sync analog monitors. Digital displays may not provide an image as high in quality, depending on resolution. 6-4 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 119
PCIe x16 graphics 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 120
Red Analog Ground 14 VSync Vertical Sync Blue Analog Ground 15 SCL DDC2-B Clock Green Analog Ground -- -- -- NOTES: [1] Fuse automatically resets when excessive load is removed. 6-6 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 121
/Control These systems feature a power supply assembly that is controlled through programmable logic (Figure 7-1). Front Bezel Power Button Power On System Board CPU, [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
can be split by the system board to +12 VDC (@ 3 A) and +12 Vcpu (@ 12.5 A) power planes. Table 7-2. 240-Watt (SFF/ST) Power Supply Assembly Specifications Range/ Min. Current Max. Surge minimum current loading figures apply to a PS On start up only. 7-2 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 123
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 specification compliance. [2] Maximum surge duration for +12Vcpu is 1 second with 12-volt tolerance +/- 10%. Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 124
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 initializes. ACPI four-second counter 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
I/O subsystems on low power. G1, S4, D3 (Hibernation) System off. CPU, memory, and most subsystems shut down. Memory image saved to disk for recall on power up. G2, S5, D3cold . [2] Actual transition time dependent on OS and/or application software. Technical Reference Guide www.hp.com 7-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 128
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 CPU [1] This row represents pins 13 - 24 of connector P1. Figure 7-2. USDT Power Cable Diagram 7-8 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 129
Signal Distribution Figure 7-3 shows the power supply cabling for the SFF/ST systems. Power Supply 403778 P4 P7 P5 P2 P3 P1 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
Signal Distribution Figure 7-4 shows the power supply cabling for the microtower and convertible minitower systems. Power Supply 416224 P9 P10 P11 P6 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
data J67 Mic In, HP Out Audio P23 USB 8,9 Tx/Rx P24 SATA Hard Drive SATAPATA Interface Keyboard Slimline Optical Drive Mouse Front Panel I/O Module NOTES: See Figure 7-10 for header pinout. Figure 7-5. USDT Form Factor Signal Distribution Diagram Technical Reference Guide www.hp.com 7-11 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 133
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 7-7. MT / CMT Form Factor Signal Distribution Diagram Technical Reference Guide www.hp.com 7-13 - 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 P6. NC = 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
, and XP Home ■ Windows NT 4.0 (SP6 required for PnP support) ■ OS/2 ver 2.1 and OS/2 Warp ■ SCO Unix ■ DMI 2.1 ■ Intel Wired for Management (WfM) ver. 2.2 ■ Alert Standard Format (ASF) 2.0 ■ ACPI and OnNow ■ SMBIOS 2.4 ■ Intel PXE boot ROM for the integrated LAN controller ■ BIOS Boot Specification - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 136
if changes are made to the unit's operating system, hard drive, or processor. All BIOS ROM upgrades are available directly from HP. Flashing is done either locally thrugh F10 setup, the HPQFlash program in a Windows environment, or with the FLASHBIN.EXE utility in a DOS or DOS-like environment - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 137
Boot Device Order The default boot device order is as follows: 1. CD-ROM drive (EL Torito CD images) 2. Diskette drive (A:) 3. USB device 4. Hard drive (C:) 5. Network interface controller F9 utility, which allows the user to select a hot IPL boot device. Technical Reference Guide www.hp.com 8-3 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 138
■ Size ■ Type ■ Timing/CAS latency ■ PC133 capability ✎ Refer to Chapter 3, "Processor/Memory Subsystem" for the SPD format and DIMM data specific to this system. The BIOS performs memory detection and configuration with the following steps: 1. Program the buffer strength control registers based on - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 139
graphics card. 7 beeps PCA failure. Check/replace system board. 8 beeps Invalid ROM (checksum error). Reflash ROM using CD or replace system board. 9 beeps System powers on but fails to boot. Check power supply, CPU, system board. None Bad option card. Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 140
system configuration settings as the default. Apply Defaults and Exit Applies the currently selected default settings and clears any established passwords. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. 8-6 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 141
is not compatible with the translation mode that was active when the disk was partitioned and formatted, the data on the disk will be inaccessible. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com 8-7 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 142
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 Reference - 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
User alerts the user that the sensor has detected that the cover has been removed. Setup Password requires that the setup password be entered to boot the computer if the sensor detects that the cover has been removed. This feature is supported on select models only. See the Desktop Management Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 145
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.com 8-11 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 146
=Network Service Boot 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 147
PCI VGA palette snooping, which sets the VGA palette snooping bit in PCI configuration space; only needed when more than one graphics controller is installed. ✎ Support for specific Computer Setup options may vary depending on the hardware configuration. Technical Reference Guide www.hp.com 8-13 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 150
2801h MT: 0A50h 2800h CMT: 0A58h 2802h NOTE: For all systems, BIOS ROM Family = 786E1, PnP ID = CPQ0968, and Subsystem vendor ID = 103Ch. The ROM family and version numbers can be verified with the Setup utility or the Compaq Insight Manager or Diagnostics applications. 8.5.2 Temperature - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 151
. Function 51h retrieves a specific structure. This system supports SMBIOS version 2.4 and the following structure types: Type 0 1 2 3 4 7 8 9 13 15 16 17 19 20 31 32 Data BIOS Information System Information Base board information System Enclosure or Chassis Processor Information Cache Information - 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
board. 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 154
Graphics display controller. 510-Splash Image Corrupt Corrupted splash screen image. Restore default image w/flash utility. 511-CPU Fan Not Detected Processor heat sink fan is not connected. 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
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 Drive Type Error Mismatch in drive type. 912-Computer Cover Removed Since Last System Start - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 156
Probable Cause 1801-Microcode Patch Error A processor is installed for which the BIOS ROM has no patch. Check for ROM update. Invalid Electronic Serial Number Electronic serial number has become corrupted. Network Server Mode Active and Keyboard failure while Network Server Mode enabled. No - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 157
clock load data test failed 199-00 Installed devices test failed NOTES: [1] 102 message code may be caused by one of a variety of processor-related problems that may be solved by replacing the processor, although system board replacement may be needed. Technical Reference Guide www.hp.com A-5 - 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 04 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
01 Video controller test failed 508-01 320x200 mode, color set 0 test failed 502-01 Video memory test failed 509-01 320x200 mode, color set 1 test failed 503-01 Video pattern 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
608-xx = Diskette drive write-protect test 609-xx = Diskette drive reset controller test 610-xx = Diskette drive change line test 611-xx = Pri. diskette = 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
-xx COM1 address conflict 1101-11 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
dial tone 1201-04 Data line fault 1204-07 Dial number string too long 1201-05 UART control signal failure 1204-08 Modem time-out waiting for remote response 1201-06 UART THRE bit failure 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
test [6] Modem direct connect test A.12 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
ECC error 17xx-40 Cylinder 0 error 17xx-44 Failed controller diagnostics 17xx-68 RAM 17xx-72 Bad track limit exceeded 17xx-49 Failed to read media in file write test 17xx-73 Previously exceeded bad track limit 17xx-50 Failed I/O write test -- -- Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 166
test xx = 91, Disk 1 failure xx = 15, Hard drive head select test xx = 92, Se. controller failure xx = 16, Hard drive conditional format test xx = 93, Sec. Controller or disk failure xx = 17, Hard drive ECC test xx = 99, Invalid hard drive type A-14 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 167
-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 0 19xx-19 Write (probably ID ) error 19xx-40 Failed self-test 19xx-20 NEC fatal error 19xx-91 Reference Guide www.hp.com A-15 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 168
tst failed, invalid resp. 2478-xx AVGA BitBLT test failed EGA memory test failed 2480-xx AVGA linedraw test failed A.16 Audio Error Messages (3206-xx) Message 3206-xx Table A-15 Audio Error Messages Probable Cause Audio subsystem internal error A-16 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 169
Network Interface Error Messages (60xx-xx) Message 6000- 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - 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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 171
mouse 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
Character Set Dec Hex Symbol Dec Hex Symbol Dec Hex Symbol Dec Hex 0 00 Blank 32 20 Space 64 40 @ 96 60 1 01 33 21 ! 65 41 A 97 61 2 02 34 22 " 66 42 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
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
cursor control key cluster, twelve "function" keys, and enhanced programmability for additional functions. This appendix covers the following keyboard types: ■ Standard enhanced keyboard. ■ Space-Saver Windows-version keyboard featuring additional keys for specific support of the Windows operating - 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 CPU and the scanning process begins. The keyboard processor hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 179
-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 Guide www.hp - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 180
35 36 37 38 55 56 57 72 73 74 58 88 89 90 100 101 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
789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 31 39 40 41 42 43 44 45 46 47 48 49 50 51 71 59 60 61 62 63 64 65 66 67 68 36 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
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 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 183
that require specific support by the application is removed. This keystroke is always serviced by the BIOS (as BIOS function INT 1Bh. This software interrupt provides a method of exiting an application and generally halts execution of the current program. Technical Reference Guide www.hp.com - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 184
by the BIOS. C.2.4.3 Windows Keystrokes Windows-enhanced keyboards include three additional key positions. Key positions 110 and 111 (marked with the Windows logo ) have the same functionality and are used by themselves or in combination with other keys to perform specific "hot-key" type functions - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 185
Industry specification info 6 Market Monitor Launches Bloomberg market monitor 7 Meeting Center Links to user's project center 8 News/PC Lock News retrieval service All buttons may be re-programmed by the user through the Easy Access utility. Technical Reference Guide www.hp.com C-9 - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 186
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 Key Detection Error/ 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
processor are determined by the mode the keyboard is operating in. ■ Mode 1: In Mode 1 operation, the keyboard generates scan codes compatible with 8088-/8086-based systems. To enter Mode 1, the scan code translation function of the keyboard controller F6 40/C0 0B 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
7C/F0 7C 7E/na 38 - 4A/CA 7B/F0 7B 84/na 39 Tab 0F/8F 0D/F0 0D 0D/na 40 Q 10/90 15/F0 15 15/na 41 W 11/91 1D/F0 1D 1D/F0 1D 42 E 12/92 24 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 33 22/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
6D 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
. [5] Left Shift key active. For active right Shift key, substitute F0 12/12 make/break codes for F0 59/59 codes. [6] Num Lock key active. [7] Windows keyboards only. [8] 7-Button Easy Access keyboard. [9] 8-Button Easy Access keyboard. C-16 www.hp.com Technical Reference Guide - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 193
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 interface will ship with a USB keyboard - 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
M Memory 3-4 memory allocation (video) 6-3 memory map 3-7 model numbering 1-2 mouse (pointing device) interface 5-18 N Network Boot 8-4 Network Interface Controller 5-15 P parallel interface 5-11 Parallel Interface Connector 5-14 password, Setup 4-21 PCI 2.3 4-2 PCI Express 4-6 Pentium 4 processor - HP Dc7700 | HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1 - Page 196
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.hp.com Technical
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.