HP D315 User Manual

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technical reference guide
april 2003
Compaq D315 and hp d325 Personal Computers
This document provides information on the design, architecture, function, and capabilities of the Compaq D315 and the HP d325 Personal Computers. This information may be used by engineers, technicians, administrators, or anyone needing detailed information on the products covered.
Document Part Number 322898-002
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This document is designed for printout in the 8 ½- x 11-inch format. The title block below may can be copied and/or cut out and placed into a slip or taped onto the binder.
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TRG
Compaq D315 and hp d325 Personal Computers
featuring the AMD Athlon XP processor and NVidia NForce chipsets
Technical Reference Guide

NOTICE

© 2003 Hewlett-Packard Company
HP, Hewlett-Packard, and the Hewlett-Packard logo are trademarks of the Hewlett-Packard Company in the U.S. and other countries.
Compaq, the Compaq logo, and iPAQ are trademarks of Hewlett-Packard Development Company, L.P. in the U.S. and other countries.
Microsoft, MS-DOS, Windows, Windows NT are trademarks of Microsoft Corporation in the United States and other countries.
AMD, Athlon XP, and Duron are trademarks or registered trademarks of Advanced Micro Devices, Incorporated.
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All other product names mentioned herein may be trademarks of their respective companies.
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Technical Reference Guide For the Compaq D315 and hp d325 Personal Computers Second Edition - April 2003 Document Part Number 322898-002
Compaq D315 and hp d325 Personal Computers
Featuring the AMD Athlon XP Processor
Second Edition - April 2003
i
Technical Reference Guide
Compaq D315 and hp d325 Personal Computers
ii
Featuring the AMD Athlon XP Processor
Second Edition –- April 2003
Technical Reference Guide

TABLE OF CONTENTS

CHAPTER 1 INTRODUCTION ..................................................................................................................
1.1 ABOUT THIS GUIDE ................................................................................................................ 1-1
1.1.1 ONLINE VIEWING............................................................................................................ 1-1
1.1.2 HARDCOPY ....................................................................................................................... 1-1
1.2 ADDITIONAL INFORMATION SOURCES............................................................................. 1-2
1.3 MODEL NUMBERING CONVENTION ................................................................................... 1-2
1.3.1 COMPAQ MODEL NUMBERING CONVENTION......................................................... 1-2
1.3.2 hp MODEL NUMBERING CONVENTION...................................................................... 1-3
1.4 SERIAL NUMBER ..................................................................................................................... 1-3
1.5 NOTATIONAL CONVENTIONS.............................................................................................. 1-3
1.5.1 VALUES ............................................................................................................................. 1-4
1.5.2 RANGES ............................................................................................................................. 1-4
1.5.3 REGISTER NOTATION AND USAGE ............................................................................ 1-4
1.5.4 BIT NOTATION AND BYTE VALUES ........................................................................... 1-4
1.6 COMMON ACRONYMS AND ABBREVIATIONS................................................................. 1-5
CHAPTER 2 SYSTEM OVERVIEW ..........................................................................................................
2.1 INTRODUCTION....................................................................................................................... 2-1
2.2 FEATURES AND OPTIONS...................................................................................................... 2-2
2.2.1 STANDARD FEATURES .................................................................................................. 2-2
2.2.2 OPTIONS ............................................................................................................................ 2-3
2.3 MECHANICAL DESIGN ........................................................................................................... 2-4
2.3.1 CABINET LAYOUTS ........................................................................................................ 2-4
2.3.2 CHASSIS LAYOUT ........................................................................................................... 2-6
2.3.3 BOARD LAYOUTS ........................................................................................................... 2-7
2.4 SYSTEM ARCHITECTURE ...................................................................................................... 2-8
2.4.1 AMD ATHLON XP PROCESSOR .................................................................................. 2-10
2.4.2 CHIPSET........................................................................................................................... 2-11
2.4.3 SUPPORT COMPONENTS.............................................................................................. 2-11
2.4.4 SYSTEM MEMORY ........................................................................................................ 2-12
2.4.5 MASS STORAGE............................................................................................................. 2-12
2.4.6 SERIAL AND PARALLEL INTERFACES ..................................................................... 2-12
2.4.7 UNIVERSAL SERIAL BUS INTERFACE...................................................................... 2-12
2.4.8 NETWORK INTERFACE CONTROLLER..................................................................... 2-13
2.4.9 GRAPHICS SUBSYSTEM............................................................................................... 2-13
2.4.10 AUDIO SUBSYSTEM...................................................................................................... 2-14
2.5 SPECIFICATIONS ................................................................................................................... 2-14
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Second Edition - April 2003
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CHAPTER 3 PROCESSOR/MEMORY SUBSYSTEM.............................................................................
3.1 INTRODUCTION....................................................................................................................... 3-1
3.2 ATHLON XP PROCESSOR ....................................................................................................... 3-2
3.2.1 PROCESSOR OVERVIEW ................................................................................................ 3-2
3.2.2 PROCESSOR UPGRADING.............................................................................................. 3-4
3.3 MEMORY SUBSYSTEM........................................................................................................... 3-5
CHAPTER 4 SYSTEM SUPPORT ..............................................................................................................
4.1 INTRODUCTION....................................................................................................................... 4-1
4.2 PCI BUS OVERVIEW ................................................................................................................ 4-2
4.2.1 PCI BUS TRANSACTIONS............................................................................................... 4-3
4.2.2 PCI BUS MASTER ARBITRATION ................................................................................. 4-6
4.2.3 OPTION ROM MAPPING ................................................................................................. 4-7
4.2.4 PCI INTERRUPTS.............................................................................................................. 4-7
4.2.5 PCI POWER MANAGEMENT SUPPORT........................................................................ 4-7
4.2.6 PCI SUB-BUSSES .............................................................................................................. 4-7
4.2.7 PCI CONNECTOR ............................................................................................................. 4-8
4.3 AGP BUS OVERVIEW .............................................................................................................. 4-9
4.3.1 BUS TRANSACTIONS...................................................................................................... 4-9
4.3.2 AGP CONNECTOR.......................................................................................................... 4-13
4.4 SYSTEM RESOURCES ........................................................................................................... 4-14
4.4.1 INTERRUPTS................................................................................................................... 4-14
4.4.2 DIRECT MEMORY ACCESS.......................................................................................... 4-18
4.5 SYSTEM CLOCK DISTRIBUTION ........................................................................................ 4-21
4.6 REAL-TIME CLOCK AND CONFIGURATION MEMORY.................................................. 4-22
4.6.1 CLEARING CMOS........................................................................................................... 4-22
4.6.2 CMOS ARCHIVE AND RESTORE................................................................................. 4-23
4.6.3 STANDARD CMOS LOCATIONS ................................................................................. 4-23
4.7 SYSTEM MANAGEMENT...................................................................................................... 4-24
4.7.1 SECURITY FUNCTIONS ................................................................................................ 4-24
4.7.2 POWER MANAGEMENT ............................................................................................... 4-26
4.7.3 SYSTEM STATUS ........................................................................................................... 4-26
4.7.4 THERMAL SENSING AND COOLING ......................................................................... 4-27
4.8 REGISTER MAP AND MISCELLANEOUS FUNCTIONS .................................................... 4-30
4.8.1 SYSTEM I/O MAP ........................................................................................................... 4-30
4.8.2 LPC47B367 I/O CONTROLLER FUNCTIONS .............................................................. 4-31
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CHAPTER 5 INPUT/OUTPUT INTERFACES..........................................................................................
5.1 INTRODUCTION....................................................................................................................... 5-1
5.2 ENHANCED IDE INTERFACE................................................................................................. 5-1
5.2.1 IDE PROGRAMMING ....................................................................................................... 5-1
5.2.2 IDE CONNECTOR ............................................................................................................. 5-3
5.3 DISKETTE DRIVE INTERFACE .............................................................................................. 5-4
5.3.1 DISKETTE DRIVE PROGRAMMING.............................................................................. 5-5
5.3.2 DISKETTE DRIVE CONNECTOR ................................................................................... 5-7
5.4 SERIAL INTERFACE ................................................................................................................ 5-8
5.4.1 SERIAL CONNECTOR...................................................................................................... 5-8
5.4.2 SERIAL INTERFACE PROGRAMMING......................................................................... 5-9
5.5 PARALLEL INTERFACE........................................................................................................ 5-11
5.5.1 STANDARD PARALLEL PORT MODE ........................................................................ 5-11
5.5.2 ENHANCED PARALLEL PORT MODE........................................................................ 5-12
5.5.3 EXTENDED CAPABILITIES PORT MODE .................................................................. 5-12
5.5.4 PARALLEL INTERFACE PROGRAMMING ................................................................ 5-13
5.5.5 PARALLEL INTERFACE CONNECTOR ...................................................................... 5-15
5.6 KEYBOARD/POINTING DEVICE INTERFACE................................................................... 5-16
5.6.1 KEYBOARD INTERFACE OPERATION ...................................................................... 5-16
5.6.2 POINTING DEVICE INTERFACE OPERATION .......................................................... 5-18
5.6.3 KEYBOARD/POINTING DEVICE INTERFACE PROGRAMMING .......................... 5-18
5.6.4 KEYBOARD/POINTING DEVICE INTERFACE CONNECTOR ................................. 5-21
5.7 UNIVERSAL SERIAL BUS INTERFACE .............................................................................. 5-22
5.7.1 USB DATA FORMATS ................................................................................................... 5-23
5.7.2 USB PROGRAMMING .................................................................................................... 5-24
5.7.3 USB CONNECTOR.......................................................................................................... 5-25
5.7.4 USB CABLE DATA ......................................................................................................... 5-25
5.8 AUDIO SUBSYSTEM.............................................................................................................. 5-26
5.8.1 FUNCTIONAL ANALYSIS............................................................................................. 5-26
5.8.2 AC97 AUDIO CONTROLLER ........................................................................................ 5-28
5.8.3 AC97 LINK BUS .............................................................................................................. 5-28
5.8.4 AUDIO CODEC................................................................................................................ 5-29
5.8.5 AUDIO PROGRAMMING............................................................................................... 5-30
5.8.6 AUDIO SPECIFICATIONS ............................................................................................. 5-31
5.9 NETWORK INTERFACE CONTROLLER ............................................................................. 5-32
5.9.1 WAKE ON LAN SUPPORT............................................................................................. 5-33
5.9.2 ALERT ON LAN SUPPORT............................................................................................ 5-33
5.9.3 POWER MANAGEMENT SUPPORT............................................................................. 5-34
5.9.4 NIC PROGRAMMING..................................................................................................... 5-35
5.9.5 NIC CONNECTOR........................................................................................................... 5-36
5.9.6 NIC SPECIFICATIONS ................................................................................................... 5-36
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CHAPTER 6 INTREGRATED GRAPHICS SUBSYSTEM......................................................................
6.1 INTRODUCTION....................................................................................................................... 6-1
6.2 FUNCTIONAL DESCRIPTION................................................................................................. 6-2
6.3 DISPLAY MODES ..................................................................................................................... 6-4
6.4 PROGRAMMING....................................................................................................................... 6-5
6.5 UPGRADING IGP-BASED GRAPHICS ................................................................................... 6-5
6.6 VGA MONITOR CONNECTOR................................................................................................ 6-6
CHAPTER 7 POWER SUPPLY AND 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 ........................................................................................................... 7-3
7.2.3 POWER MANAGEMENT ................................................................................................. 7-5
7.3 POWER DISTRIBUTION .......................................................................................................... 7-6
7.3.1 3.3/5/12 VDC DISTRIBUTION.......................................................................................... 7-6
7.3.2 LOW VOLTAGE PRODUCTION/DISTRIBUTION ........................................................ 7-8
7.4 SIGNAL DISTRIBUTION.......................................................................................................... 7-9
CHAPTER 8 SYSTEM BIOS .......................................................................................................................
8.1 INTRODUCTION....................................................................................................................... 8-1
8.2 ROM FLASHING/UPGRADING............................................................................................... 8-2
8.3 BOOT FUNCTIONS................................................................................................................... 8-3
8.3.1 BOOT DEVICE ORDER .................................................................................................... 8-3
8.3.2 NETWORK BOOT (F12) SUPPORT................................................................................. 8-3
8.3.3 MEMORY DETECTION AND CONFIGURATION ........................................................ 8-4
8.3.4 BOOT ERROR CODES...................................................................................................... 8-4
8.4 SETUP UTILITY ........................................................................................................................ 8-5
8.5 CLIENT MANAGEMENT FUNCTIONS ................................................................................ 8-11
8.5.1 SYSTEM ID AND ROM TYPE ....................................................................................... 8-13
8.5.2 EDID RETRIEVE ............................................................................................................. 8-13
8.5.3 TEMPERATURE STATUS .............................................................................................. 8-14
8.5.4 DRIVE FAULT PREDICTION ........................................................................................ 8-14
8.6 POWER MANAGEMENT FUNCTIONS ................................................................................ 8-14
8.6.1 INDEPENDENT PM SUPPORT (D315 only) ................................................................. 8-14
8.6.2 ACPI SUPPORT ............................................................................................................... 8-16
8.7 USB LEGACY SUPPORT ........................................................................................................ 8-16
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APPENDIX A ERROR MESSAGES AND CODES............................................................................ A-1
A.1 INTRODUCTION...................................................................................................................... A-1
A.2 BEEP/KEYBOARD LED CODES............................................................................................. A-1
A.3 POWER-ON SELF TEST (POST) MESSAGES........................................................................ A-2
A.4 SYSTEM ERROR MESSAGES (1XX-XX)................................................................................. A-3
A.5 MEMORY ERROR MESSAGES (2XX-XX)............................................................................... A-4
A.6 KEYBOARD ERROR MESSAGES (30X-XX)........................................................................... A-4
A.7 PRINTER ERROR MESSAGES (4XX-XX)................................................................................ A-5
A.8 VIDEO (GRAPHICS) ERROR MESSAGES (5XX-XX)............................................................. A-5
A.9 DISKETTE DRIVE ERROR MESSAGES (6XX-XX) ................................................................ A-6
A.10 SERIAL INTERFACE ERROR MESSAGES (11XX-XX)...................................................... A-6
A.11
A.12 SYSTEM STATUS ERROR MESSAGES (16XX-XX)........................................................... A-8
A.13 HARD DRIVE ERROR MESSAGES (17XX-XX) .................................................................. A-8
A.14
A.15 VIDEO (GRAPHICS) ERROR MESSAGES (24XX-XX)....................................................... A-9
A.16
A.17 DVD/CD-ROM ERROR MESSAGES (33XX-XX)............................................................... A-10
A.18 NETWORK INTERFACE ERROR MESSAGES (60XX-XX).............................................. A-10
A.19 SCSI INTERFACE ERROR MESSAGES (65XX-XX, 66XX-XX, 67XX-XX)......................... A-11
A.20 POINTING DEVICE INTERFACE ERROR MESSAGES (8601-XX) ................................ A-11
APPENDIX B ASCII CHARACTER SET ..................................................................................................
MODEM COMMUNICATIONS ERROR MESSAGES (12XX-XX) ..................................... A-7
HARD DRIVE ERROR MESSAGES (19XX-XX) .................................................................. A-9
AUDIO ERROR MESSAGES (3206-XX) ............................................................................ A-10
B.1 INTRODUCTION.......................................................................................................................B-1
APPENDIX C KEYBOARD .........................................................................................................................
C.1 INTRODUCTION.......................................................................................................................C-1
C.2 KEYSTROKE PROCESSING ....................................................................................................C-2
C.2.1 PS/2-TYPE KEYBOARD TRANSMISSIONS ..................................................................C-3
C.2.2 USB-TYPE KEYBOARD TRANSMISSIONS ..................................................................C-4
C.2.3 KEYBOARD LAYOUTS ...................................................................................................C-5
C.2.4 KEYS...................................................................................................................................C-8
C.2.5 KEYBOARD COMMANDS ............................................................................................C-11
C.2.6 SCAN CODES ..................................................................................................................C-11
C.3 CONNECTORS ........................................................................................................................C-16
Compaq D315 and hp d325 Personal Computers
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Second Edition - April 2003
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APPENDIX D COMPAQ/INTEL NETWORK INTERFACE CONTROLLER ADAPTERS ..............
D.1 INTRODUCTION...................................................................................................................... D-1
D.2 FUNCTIONAL DESCRIPTION................................................................................................ D-2
D.2.1 AOL FUNCTION............................................................................................................... D-3
D.2.2 WAKE UP FUNCTIONS................................................................................................... D-3
D.2.3 IPSEC FUNCTION ............................................................................................................ D-4
D.3 POWER MANAGEMENT SUPPORT ...................................................................................... D-5
D.3.1 APM ENVIRONMENT ..................................................................................................... D-5
D.3.2 ACPI ENVIRONMENT..................................................................................................... D-5
D.4 ADAPTER PROGRAMMING.................................................................................................. D-6
D.4.1 CONFIGURATION ........................................................................................................... D-6
D.4.2 CONTROL .........................................................................................................................D-6
D.5 NETWORK CONNECTOR....................................................................................................... D-7
D.6 ADAPTER SPECIFICATIONS ................................................................................................. D-7
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LIST OF FIGURES
COMPAQ
2-1.
CABINET LAYOUT, FRONT VIEWS
2-2.
CABINET LAYOUT , REAR VIEWS
2-3.
HASSIS LAYOUT, LEFT SIDE VIEW
2-4. C
YSTEM BOARD LAYOUTS
2-5. S
SYSTEM ARCHITECTURE, BLOCK DIAGRAM
2-6.
HEAT SINK, PROCESSOR, AND SOCKET ASSEMBLIES
2-7.
PROCESSOR/MEMORY SUBSYSTEM ARCHITECTURE
3–1. 3–2.
AMD A
SYSTEM MEMORY MAP
3–3.
4-1. PCI B 4-2. 4-3. 4-4. 4-5. 4-6. 4-7. 4-8. 4-9. 4-10. 4-11.
US DEVICES AND FUNCTIONS
CONFIGURATION CYCLE
ONFIGURATION SPACE MAPPING
PCI C
US CONNECTOR
PCI B AGP 1X D AGP 2X D AGP 4X D AGP 8X D
US CONNECTOR
AGP B
MASKABLE INTERRUPT PROCESSING, BLOCK DIAGRAM
CONFIGURATION MEMORY MAP
4-12. D315 M
D
4-13.
5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9. 5-10. 5-11. 5-12. 5-13. 5-14.
6-1. 6-2. 6-3. VGA M
7-1. P
325 M
IN PRIMARY
40-P
IN DISKETTE DRIVE CONNECTOR
34-P
SERIAL INTERFACE CONNECTOR (MALE
PARALLEL INTERFACE CONNECTOR (FEMALE
8042-TO-K
KEYBOARD OR POINTING DEVICE INTERFACE CONNECTOR
USB I/F B
UNIVERSAL SERIAL BUS CONNECTOR
ACKET FORMATS
USB P
AUDIO SUBSYSTEM FUNCTIONAL BLOCK DIAGRAM
AC’97 L
AUDIO CODEC FUNCTIONAL BLOCK DIAGRAM AND DIFFERENCE MATRIX
NETWORK INTERFACE CONTROLLER BLOCK DIAGRAM
ETHERNET
ASED GRAPHICS, BLOCK DIAGRAM
IGP-B
RAPHICS CONTROLLER BLOCK DIAGRAM AND DIFFERENCE MATRIX
IGP G
ONITOR CONNECTOR, (FEMALE
OWER DISTRIBUTION AND CONTROL, BLOCK DIAGRAM
7-2. D315 M 7-3. D325 M
LOW VOLTAGE SUPPLY AND DISTRIBUTION DIAGRAM
7-4.
SIGNAL DISTRIBUTION DIAGRAM
7-5.
MISCELLANEOUS HEADER PINOUTS
7-6.
D315
AND HP D
ERSONAL COMPUTERS
325 P
........................................................................................... 2-4
............................................................................................ 2-5
......................................................................................... 2-6
....................................................................................................... 2-7
........................................................................... 2-9
THLON XP PROCESSOR INTERNAL ARCHITECTURE AND KEY STATISTICS
.......................................................................................................... 3-7
......................................................................................... 4-2
......................................................................................................... 4-4
................................................................................... 4-5
IT TYPE
(32-B
ATA TRANSFER (PEAK TRANSFER RATE:
ATA TRANSFER (PEAK TRANSFER RATE:
ATA TRANSFER (PEAK TRANSFER RATE:
ATA TRANSFER (PEAK TRANSFER RATE:
)...................................................................................... 4-8
......................................................................................................... 4-13
......................................................................................... 4-22
ODEL FAN CONTROL BLOCK DIAGRAM
ODEL FAN CONTROL FUNCTIONAL BLOCK DIAGRAM
ONNECTOR (ON SYSTEM BOARD
IDE C
.................................................................. 4-28
. ................................................................................... 5-7
AS VIEWED FROM REAR OF CHASSIS
DB-9
DB-25
EYBOARD TRANSMISSION OF CODE EDH, TIMING DIAGRAM
LOCK DIAGRAM AND DIFFERENCE MATRIX
........................................................................................................ 5-23
.................................................................................. 5-25
INK BUS PROTOCOL
ONNECTOR
TPE C
.............................................................................................. 5-28
(RJ-45,
VIEWED FROM CARD EDGE
............................................................................... 6-2
AS VIEWED FROM REAR
DB-15,
ODEL POWER CABLE DIAGRAM
ODEL POWER CABLE DIAGRAM
.................................................................................. 7-6
.................................................................................. 7-7
........................................................................................... 7-9
...................................................................................... 7-10
............................................................ 2-1
............................................................. 2-10
............................................................... 3-1
266 MB/S) ........................................... 4-10
532 MB/S) ........................................... 4-11
1064 MB/S) ......................................... 4-11
2128 MB/S) ......................................... 4-12
..................................................... 4-14
............................................. 4-29
)........................................................ 5-3
AS VIEWED FROM REAR OF CHASSIS
.................................................. 5-21
.......................................................... 5-22
........................................................... 5-27
...................................................... 5-32
......................................................... 7-1
........................................................... 7-8
Compaq D315 and hp d325 Personal Computers
Featuring the AMD Athlon XP Processor
Second Edition - April 2003
. ................ 3-3
) .............. 5-8
).. 5-15
.............................. 5-16
........................ 5-29
) ...................................... 5-36
............................ 6-3
). ............................... 6-6
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KEYSTROKE PROCESSING ELEMENTS, BLOCK DIAGRAM
C–1. C–2. C–3.
NATIONAL
C–4. C–5.
NATIONAL WINDOWS
C–6. C–7. C–8. C–9. C–10.
EYBOARD-TO-SYSTEM TRANSMISSION, TIMING DIAGRAM
PS/2 K
NGLISH
U.S. E
(102-KEY) K
NGLISH WINDOWS
U.S. E
UTTON EASY ACCESS KEYBOARD LAYOUT
7-B
UTTON EASY ACCESS KEYBOARD LAYOUT
8-B
EYBOARD CABLE CONNECTOR (MALE
PS/2 K
EYBOARD CABLE CONNECTOR (MALE
USB K
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NTEL
D-1. I
NTEL
D-2. I
ETHERNET
D-3.
PRO/100+
PRP/100+ M
TPE C
(101-KEY) K
EYBOARD KEY POSITIONS
EYBOARD KEY POSITIONS
(101W-KEY) K
(102W-KEY) K
EYBOARD KEY POSITIONS
EYBOARD KEY POSITIONS
.....................................................................C-7
.....................................................................C-7
) ....................................................................C-16
)..................................................................C-16
OR
PRO/100 S M
ANAGEMENT ADAPTER, BLOCK DIAGRAM
ONNECTOR
ANAGEMENT ADAPTER CARD LAYOUT
VIEWED FROM CARD EDGE
(RJ-45,
.......................................................C-2
........................................C-3
..........................................................C-5
...............................................................C-5
.....................................C-6
..........................................C-6
........................... D-1
.............................................. D-2
)........................................ D-7
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1–1.
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EATURE DIFFERENCE MATRIX
2-1. F
EATURE DIFFERENCE MATRIX
2-2. F
HIPSET FUNCTIONS
2-3. C
UPPORT COMPONENT FUNCTIONS
2-4. S
TANDARD GRAPHICS SUBSYSTEM COMPARISON
2-5. S
NVIRONMENTAL SPECIFICATIONS
2-6. E
LECTRICAL SPECIFICATIONS
2-7. E
HYSICAL SPECIFICATIONS
2-8. P
ISKETTE DRIVE SPECIFICATIONS
2-9. D
PTICAL DRIVE SPECIFICATIONS
2-10. O
ARD DRIVE SPECIFICATIONS
2-11. H
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PCI D
4-2.
PCI B 4-3. PCI B 4-4. AGP B
MASKABLE INTERRUPT PRIORITIES AND ASSIGNMENTS
4-5.
MASKABLE INTERRUPT CONTROL REGISTERS
4-6.
DEFAULT
4-7. 4-8.
DMA P 4-9.
DMA C
CLOCK GENERATION AND DISTRIBUTION
4-10.
CONFIGURATION MEMORY
4-11.
YSTEM BOOT
4-12. S
YSTEM OPERATIONAL STATUS
4-13. S
SYSTEM
4-14. 4-15 LPC47B367 I/O C
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IDE PCI C
5–2.
IDE B
5–3.
40-P
DISKETTE DRIVE CONTROLLER CONFIGURATION REGISTERS
5–4.
DISKETTE DRIVE INTERFACE CONTROL REGISTERS
5–5. 5–6.
34-P
5–7.
DB-9 S
SERIAL INTERFACE CONFIGURATION REGISTERS
5–8.
SERIAL INTERFACE CONTROL REGISTERS
5–9.
PARALLEL INTERFACE CONFIGURATION REGISTERS
5–10.
PARALLEL INTERFACE CONTROL REGISTERS
5–11. 5–12.
DB-25 P
5–13.
8042-TO-K
KEYBOARD INTERFACE CONFIGURATION REGISTERS
5–14. 5–15.
CPU C
KEYBOARD/POINTING DEVICE CONNECTOR PINOUT
5–16. 5–17.
USB I
5–18.
USB C
LIST OF TABLES
........................................................................................... 1-5
................................................................................................. 2-2
................................................................................................. 2-8
................................................................................................................ 2-11
.......................................................................................... 2-11
................................................................... 2-13
.......................................................................................... 2-14
.................................................................................................. 2-14
...................................................................................................... 2-15
........................................................................................... 2-15
........................................................................................... 2-16
............................................................................................... 2-16
DDRESS MAP
EVICE CONFIGURATION ACCESS
US MASTERING DEVICES
US CONNECTOR PINOUT
US CONNECTOR PINOUT
(SDRAM DIMM) .................................................................................... 3-6
..................................................................................... 4-4
................................................................................................ 4-6
................................................................................................... 4-8
.............................................................................................. 4-13
......................................................... 4-15
........................................................................ 4-16
DMA C
AGE REGISTER ADDRESSES
ONTROLLER REGISTERS
HANNEL ASSIGNMENTS
........................................................................................ 4-19
............................................................................................. 4-20
.............................................................................. 4-18
............................................................................ 4-21
(CMOS) MAP........................................................................... 4-23
/ROM F
LASH STATUS
LED I
NDICATIONS
LED I
NDICATION
...................................................... 4-26
................................................................ 4-27
I/O MAP................................................................................................................. 4-30
ONTROLLER REGISTERS
ONFIGURATION REGISTERS
US MASTER CONTROL REGISTERS
IN PRIMARY
ONNECTOR PINOUT
IDE C
............................................................................ 4-31
..................................................................................... 5-2
................................................................................. 5-2
............................................................................ 5-3
................................................. 5-5
................................................................ 5-6
IN DISKETTE DRIVE CONNECTOR PINOUT
ERIAL CONNECTOR PINOUT
......................................................................................... 5-8
........................................................................ 5-7
.................................................................... 5-9
.............................................................................. 5-10
........................................................... 5-13
...................................................................... 5-14
ARALLEL CONNECTOR PINOUT
EYBOARD COMMANDS
.............................................................................. 5-15
...................................................................................... 5-17
.......................................................... 5-18
OMMANDS TO THE
8042........................................................................................... 5-20
........................................................... 5-21
NTERFACE CONFIGURATION REGISTERS
ONTROL REGISTERS
.................................................................................................. 5-24
.................................................................... 5-24
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Second Edition - April 2003
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5–19. 5–20. 5–21. 5–22.
AUDIO SUBSYSTEM SPECIFICATIONS
5–23. 5–24. 5–25. 5–26. 5–27.
6-1.
845G-B 6-2. 815E-B 6-3. DB-15 M
7-1. 220-W 7-2.
240-W
SYSTEM POWER STATES
7-3.
OOT BLOCK CODES
8-1. B
OOT ERROR CODES
8-2. B
SETUP UTILITY FUNCTIONS
8-3.
CLIENT MANAGEMENT FUNCTIONS
8-4.
BEEP/KEYBOARD
A–1.
POWER-ON SELF TEST
A–2.
SYSTEM ERROR MESSAGES
A–3.
MEMORY ERROR MESSAGES
A–4.
KEYBOARD ERROR MESSAGES
A–5.
PRINTER ERROR MESSAGES
A–6.
VIDEO (GRAPHICS) ERROR MESSAGES
A–7.
DISKETTE DRIVE ERROR MESSAGES
A–8.
SERIAL INTERFACE ERROR MESSAGES
A–9.
SERIAL INTERFACE ERROR MESSAGES
A–10.
SYSTEM STATUS ERROR MESSAGES
A–11.
HARD DRIVE ERROR MESSAGES
A–12.
HARD DRIVE ERROR MESSAGES
A–13.
VIDEO (GRAPHICS) ERROR MESSAGES
A–14.
AUDIO ERROR MESSAGES
A–15. A–16.
NETWORK INTERFACE ERROR MESSAGES
A–17. A–18.
POINTING DEVICE INTERFACE ERROR MESSAGES
A–19.
B-1. ASCII C
KEYBOARD-TO-SYSTEM COMMANDS
C–1.
KEYBOARD SCAN CODES
C–2. D-1.
NIC C
D-2.
NIC C
D-3. A
ONNECTOR PINOUT
USB C
ABLE LENGTH DATA
USB C AC’97 A AC’97 A
AOL E NIC C NIC C 82559 NIC O
UDIO CONTROLLER
UDIO CODEC CONTROL REGISTERS
VENTS
...................................................................................................................... 5-33
ONTROLLER
ONTROL REGISTERS
PERATING SPECIFICATIONS
ASED GRAPHICS DISPLAY MODES
ASED GRAPHICS CONTROLLER
ONITOR CONNECTOR PINOUT
ATT POWER SUPPLY ASSEMBLY SPECIFICATIONS
ATT POWER SUPPLY ASSEMBLY SPECIFICATIONS
................................................................................................... 5-25
................................................................................................ 5-25
PCI C
ONFIGURATION REGISTERS
PCI C
................................................................................................... 5-35
........................................................................................................... 7-5
................................................................................................................. 8-2
.................................................................................................................. 8-4
...................................................................................................... 8-5
(INT15) ......................................................................... 8-11
ODES
LED C
(POST) M
.............................................................................................. A-1
ESSAGES
................................................................................................... A-3
................................................................................................. A-4
.............................................................................................. A-4
................................................................................................... A-5
.......................................................................................... A-8
.......................................................................................... A-9
................................................................................................. A-10
DVD/CD-ROM D
NTERFACE ERROR MESSAGES
SCSI I
HARACTER SET
RIVE ERROR MESSAGES
............................................................................................................B-1
......................................................................................................C-12
ONTROLLER
ONTROL REGISTERS
DAPTER OPERATING SPECIFICATIONS
ONFIGURATION REGISTERS
PCI C
..................................................................................................... D-6
ONFIGURATION REGISTERS
........................................... 5-30
....................................................................... 5-30
................................................................................... 5-31
.......................................................... 5-35
............................................................................. 5-36
............................................................................... 6-4
ONFIGURATION REGISTERS
PCI C
................................ 6-5
...................................................................................... 6-6
.......................................................... 7-2
......................................................... 7-2
........................................................................... A-2
.................................................................................. A-5
..................................................................................... A-6
.................................................................................. A-6
................................................................................ A-7
.................................................................................... A-8
................................................................................ A-9
........................................................................ A-10
......................................................................... A-10
................................................................................. A-11
............................................................. A-11
...................................................................................C-11
............................................................ D-6
................................................................................... D-7
Compaq D315 and hp d325 Personal Computers
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Second Edition –- April 2003
Technical Reference Guide

Chapter 1 INTRODUCTION

1.
Chapter 1 INTRODUCTION

1.1 ABOUT THIS GUIDE

This guide provides technical information about Compaq D315 and the HP d325 personal computers, both which feature the AMD Athlon XP processor and an NVidia NForce series chipset. This document describes in detail the system’s design and operation for programmers, engineers, technicians, and system administrators, as well as end-users wanting detailed information.
The chapters of this guide primarily describe the hardware and firmware elements and primarily deal with the system board and the power supply assembly. The appendices contain general data such as error codes and information about standard peripheral devices such as keyboards, graphics cards, and communications adapters.
This guide can be used either as an online document or in hardcopy form.
1.1.1 ONLINE VIEWING
Online viewing allows for quick navigating and convenient searching through the document. A color monitor will also allow the user to view the color shading used to highlight differential data. A softcopy of the latest edition of this guide is available for downloading in .pdf file format at the URL listed below:
http://www3.compaq.com/support/home/selectproduct.asp?destination+reflib&pid+-1
Viewing the file requires a copy of Adobe Acrobat Reader available at no charge from Adobe Systems, Inc. at the following URL:
http://www.adobe.com
When viewing with Adobe Acrobat Reader, click on the ( ) icon or "Bookmarks" tab to display the navigation pane for quick access to particular places in the guide.
1.1.2 HARDCOPY
A hardcopy of this guide may be obtained by printing from the .pdf file. The document is designed for printing in an 8 ½ x 11-inch format. Note that printing in black and white will lose color shading used in some illustrations and tables.
Compaq D315 and hp d325 Personal Computers
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Featuring the AMD Athlon XP Processor
Chapter 1 Introduction

1.2 ADDITIONAL INFORMATION SOURCES

For more information on components mentioned in this guide refer to the indicated manufacturers’ documentation, which may be available at the following online sources:
Hewlett-Packard Company: http://www.hp.comAdvanced Micro Devices, Inc: http://www.amd.comNVIDIA Corporation: http://www.nvidia.comStandard Microsystems Corporation: http://www.smsc.comTexas Instruments Inc.: http://www.ti.comUSB user group: http://www.usb.org

1.3 MODEL NUMBERING CONVENTION

Two model numbering conventions (one for Compaq, one for HP) are used for the systems covered in this guide.
1.3.1 COMPAQ MODEL NUMBERING CONVENTION
The model numbering convention for Compaq systems is as follows:
XXX/XNN/NN/N/NNNx
Removable storage: b = CD/CDRW, c = CD, d = DVD, r = CDRW, z = ZIP Memory (in MB) OS type: 2 = Windows 2000, 6 = Dual install, Windows NT 4.0 or 2000, 8 = Windows 98SE, P = Dual install Windows XP Pro/2000 Hard drive size (in GB) Processor speed (2 digits in GHz) Processor type: A = AMD Athlon XP Form factor: D = desktop, m = Microtower, C = Convertible minitower Model: D3 = D300 series
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Featuring the AMD Athlon XP Processor
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1.3.2 hp MODEL NUMBERING CONVENTION
The model numbering convention for HP systems is as follows:
dNNNsm/A2.06/NNNb+nyr/NNNX/XX1tNL
Technical Reference Guide
Security: Blank = mot included, L = Solenoid hood lock, K = TCPA chip, P = port control NIC or Modem: N = NIC, M = modem, C = Combo N/M, Blank = integrated Software Apps: o = Office XP Pro, t = Office XP Presonal, e = Office XP SBE W = MS Word (EMEA only), u = MS Works 2003 (NA only) OS: 1 – Linux, 2 = Win2000, 3 = XP Home, 4 = XP Pro Graphics: Blank = integrated, v = DVI add in card, AA = GFrc2 MX200 64 MB, AB = GFrc2 MX400 32 MB, AE = GFrc4 MX420 64 MB, AF = Quadro4 200NVS, AG = Quadro4 400NVS, AH = Quadro4 100NVS VGA, AJ = Quadro4 100NVA DVI, AQ = GFrc4 MX440 64 MB Memory speed: B = DDR266 single channel, C = DDR266 dual channel,
D = DDR333 single channel, E = DDR333 dual channel,
F = DDR400 single channel, G = DDR400 dual channel Memory Amount: 3 digits, MB; 2 digits, GB Removable storage: c = CD-ROM, d = DVD-ROM, q = DVD+RW, r = CDRW, w = DVD/CDRW combo, z = ZIP drive, y = drive key, n = no diskette drive, x = no removable storage, blank = diskette
nd
2
Hard drive (if installed) Hard drive speed: a = 5400 rpm, b = 7200 rpm Hard drive size (in GB) Processor speed (2 or 3 digits in GHz) Processor type: A = AMD Athlon XP Form factor: D = desktop, m = Microtower, C = Convertible minitower s = MS office software Model: 325 = d325 series
1.4 SERIAL NUMBER
The unit’s serial number is located on a sticker placed on the exterior cabinet. The serial number may also be read with the Compaq Diagnostics or Compaq Insight Manager utilities.
1.5 NOTATIONAL CONVENTIONS
The notational guidelines used in this guide are described in the following subsections.
Compaq D315 and hp d325 Personal Computers
Second Edition – April 2003
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Featuring the AMD Athlon XP Processor
Chapter 1 Introduction
1.5.1 VALUES
Hexadecimal values are indicated by a numerical or alpha-numerical value followed by the letter “h.” Binary values are indicated by a value of ones and zeros followed by the letter “b.” Numerical values that have no succeeding letter can be assumed to be decimal unless otherwise stated.
1.5.2 RANGES
Ranges or limits for a parameter are shown using the following methods:
Example A: Bits <7..4> = bits 7, 6, 5, and 4. Example B: IRQ3-7, 9 = IRQ signals 3 through 7, 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 using an indexing scheme are indicated using the following format:
03C5.17h
Index port Data port
In the example above, register 03C5.17h is accessed by writing the index port value 17h to the index address (03C4h), followed by a write to or a read from port 03C5h.
1.5.4 BIT NOTATION AND BYTE VALUES
Bit designations are labeled between brackets (i.e., “bit <0 >”). Binary values are shown with the most significant bit (MSb) on the far left, least significant bit (LSb) at the far right. Byte values in hexadecimal are also shown with the MSB on the left, LSB on the right.
Compaq D315 and hp d325 Personal Computers
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Featuring the AMD Athlon XP Processor
Second Edition – April 2003
Technical Reference Guide

1.6 COMMON ACRONYMS AND ABBREVIATIONS

Table 1-1 lists the acronyms and abbreviations used in this guide.
Table 1–1. Acronyms and Abbreviations
Table 1-1.
Acronyms and Abbreviations
Acronym/Abbreviation Description
A ampere AC alternating current ACPI Advanced Configuration and Power Interface A/D analog-to-digital ADC Analog-to-digital converter ADD AGP digital display (card) AGP Accelerated graphics port API application programming interface APIC Advanced Programmable Interrupt Controller APM advanced power management AOL Alert-On-LAN™ ASIC application-specific integrated circuit AT 1) attention (modem commands) 2) 286-based PC architecture ATA AT attachment (IDE protocol) ATAPI AT attachment w/packet interface extensions AVI audio-video interleaved AVGA Advanced VGA AWG American Wire Gauge (specification) BAT Basic assurance test BCD binary-coded decimal BIOS basic input/output system bis second/new revision BNC Bayonet Neill-Concelman (connector type) bps or b/s bits per second BSP Bootstrap processor BTO CAS column address strobe CD compact disk CD-ROM compact disk read-only memory CDS compact disk system CGA color graphics adapter Ch Channel, chapter cm centimeter CMC cache/memory controller CMOS complimentary metal-oxide semiconductor (configuration memory) Cntlr controller Cntrl control codec 1. coder/decoder; 2. compressor/decompressor CPQ Compaq CPU central processing unit CRIMM Continuity (blank) RIMM CRT cathode ray tube CSM Compaq system management / Compaq server management
Built to order
Continued
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Table 1-1. Acronyms and Abbreviations Continued
Acronym/Abbreviation Description
DAC digital-to-analog converter DC direct current DCH DOS compatibility hole DDC Display Data Channel DDR Double data rate (memory) DIMM dual inline memory module DIN Deutche IndustriNorm (connector type) DIP dual inline package DMA direct memory access DMI Desktop management interface dpi dots per inch DRAM dynamic random access memory DRQ data request DVI Digital video interface EDID extended display identification data EDO extended data out (RAM type) EEPROM electrically eraseable PROM EGA enhanced graphics adapter EIA Electronic Industry Association EISA extended ISA EPP enhanced parallel port EIDE enhanced IDE ESCD Extended System Configuration Data (format) EV Environmental Variable (data) ExCA Exchangeable Card Architecture FIFO first in / first out FL flag (register) FM frequency modulation FPM fast page mode (RAM type) FPU Floating point unit (numeric or math coprocessor) FPS Frames per second ft Foot/feet GB gigabyte GMCH Graphics/memory controller hub GND ground GPIO general purpose I/O GPOC general purpose open-collector GPU Graphics processing unit GART Graphics address re-mapping table GUI graphic user interface h hexadecimal HW hardware hex hexadecimal Hz Hertz (cycles-per-second) ICH I/O controller hub IDE integrated drive element IEEE Institute of Electrical and Electronic Engineers IF interrupt flag I/F interface IGP Integrated graphics processor
Continued
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Table 1-1. Acronyms and Abbreviations Continued
Acronym/Abbreviation Description
in inch INT interrupt I/O input/output IPL initial program loader IrDA Infrared Data Association IRQ interrupt request ISA industry standard architecture Kb / KB kilobits / kilobytes (x 1024 bits / x 1024 bytes) Kb/s kilobits per second kg kilogram KHz kilohertz kV kilovolt lb pound LAN local area network LCD liquid crystal display LED light-emitting diode LPC Low pin count LSI large scale integration LSb / LSB least significant bit / least significant byte LUN logical unit (SCSI) m Meter MCH Memory controller hub MCP Media communication processor MMX multimedia extensions MPEG Motion Picture Experts Group ms millisecond MSb / MSB most significant bit / most significant byte mux multiplex MVA motion video acceleration MVW motion video window
n
variable parameter/value NIC NiMH nickel-metal hydride NMI non-maskable interrupt NRZI Non-return-to-zero inverted ns nanosecond NT nested task flag NTSC National Television Standards Committee NVRAM non-volatile random access memory OS operating system PAL 1. programmable array logic 2. phase alternating line PC Personal computer PCA Printed circuit assembly PCI peripheral component interconnect PCM pulse code modulation PCMCIA Personal Computer Memory Card International Association
network interface card/controller
Continued
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Table 1-1. Acronyms and Abbreviations Continued
Acronym/Abbreviation Description
PFC Power factor correction PIN personal identification number PIO Programmed I/O PN Part number POST power-on self test PROM programmable read-only memory PTR pointer RAM random access memory RAS row address strobe rcvr receiver RDRAM (Direct) Rambus DRAM RGB red/green/blue (monitor input) RH Relative humidity RMS root mean square ROM read-only memory RPM revolutions per minute RTC real time clock R/W Read/Write SCSI small computer system interface SDR Singles data rate (memory) SDRAM Synchronous Dynamic RAM SEC Single Edge-Connector SECAM sequential colour avec memoire (sequential color with memory) SF sign flag SGRAM Synchronous Graphics RAM SIMD Single instruction multiple data SIMM single in-line memory module SMART Self Monitor Analysis Report Technology SMI system management interrupt SMM system management mode SMRAM system management RAM SPD serial presence detect SPDIF Sony/Philips Digital Interface (IEC-958 specification) SPN Spare part number SPP standard parallel port SRAM static RAM SSE Streaming SIMD extensions STN super twist pneumatic SVGA super VGA SW software
Continued
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Table 1-1. Acronyms and Abbreviations Continued
Acronym/Abbreviation Description
TAD telephone answering device TAFI Temperature-sensing And Fan control Integrated circuit TCP tape carrier package TF trap flag TFT thin-film transistor TIA Telecommunications Information Administration TPE twisted pair ethernet TPI track per inch TTL transistor-transistor logic TV television TX transmit UART universal asynchronous receiver/transmitter UDMA Ultra DMA URL Uniform resource locator us / µs USB Universal Serial Bus UTP unshielded twisted pair V volt VAC Volts alternating current VDC Volts direct current VESA Video Electronic Standards Association VGA video graphics adapter VLSI very large scale integration VRAM Video RAM W watt WOL Wake-On-LAN WRAM Windows RAM ZF zero flag ZIF zero insertion force (socket)
microsecond
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Chapter 2 SYSTEM OVERVIEW

2. Chapter 2 SYSTEM OVERVIEW
2.1 INTRODUCTION
The Compaq D315 and HP d325 personal computers (Figure 2-1) deliver outstanding manageability, serviceability, and compatibility for enterprise environments. Based on the AMD Athlon XP processor and an NVidia NForce Chipset, these systems emphasize performance along with industry compatibility. These models feature an architecture incorporating the PCI bus. All models are easily upgradeable and expandable to keep pace with the needs of the office enterprise.
Compaq D315
hp d325
Figure 2-1. Compaq D315 and hp d325 Personal Computers
This chapter includes the following topics:
Features and options (2.2) page 2-2 Mechanical design (2.3) page 2-4 System architecture (2.4) page 2-8 Specifications (2.5) page 2-14
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Chapter 2 System Overview

2.2 FEATURES AND OPTIONS

This section describes the standard features and available options.
2.2.1 STANDARD FEATURES
The following standard features are included on all models:
AMD Athlon XP processor Three full-height, full-length PCI slots One AGP slot 3.5 inch, 1.44-MB diskette drive IDE controller w/UATA/100 mode support 5 drive bays (two internal 3.5”, two internal 5.25”, one 3.5” diskette drive) Hard drive fault prediction Communications interfaces including:
One serial interface
One parallel interface
One network interface
Six USB interfaces Plug ’n Play compatible (with ESCD support) Intelligent Manageability support Energy Star compliant Security features including:
Flash ROM Boot Block
Diskette drive disable, boot disable, write protect
Power-on password
Administrator password
Serial/parallel port disable PS/2 Compaq Easy-Access keyboard w/Windows support PS/2 Compaq Scroll Mouse 220-watt Power Supply Available with Windows XP Home, XP Professional, or Mandrake Linux 8.2
Table 2-1 lists the differences between the Compaq D315 and hp d325 models.
Table 2-1. Feature Difference Matrix
Feature Difference Matrix
Feature Compaq D315 hp d325
DIMM type support (max) PC2100 DDR PC2700 DDR Standard graphics controller Integrated GeForce2 MX Integrated GeForce 4 MX AGP level of support 4X 8X USB level of support 1.1 2.0 Multibay support? No Yes Hood Sense/Hood Lock function? No Yes
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2.2.2 OPTIONS
The following items are available as options for all models and may be included in the standard configuration of some models:
System Memory:
Model D315: PC2100 64-MB DDR DIMM (unbuffered, non-ECC) PC2100 128-MB DDR DIMM (unbuffered, non-ECC) PC2100 256-MB DDR DIMM (unbuffered, non-ECC) PC2100 512-MB DDR DIMM (unbuffered, non-ECC)
Model D325: PC2700 64-MB DDR DIMM (unbuffered, non-ECC) PC2700 128-MB DDR DIMM (unbuffered, non-ECC) PC2700 256-MB DDR DIMM (unbuffered, non-ECC) PC2700 512-MB DDR DIMM (unbuffered, non-ECC)
Hard drives/controllers: 20-, 40-, 60, or 80-GB UATA/100 hard drive
32-GB Wide Ultra3 SCSI hard drive
Removeable media drives: 16x/10x/40x CD-RW drive
10x/40x Max DVD-ROM drive LS-120 Super Disk drive PCI DXR DVD Decoder kit
Graphics Monitors: Compaq P700 17” CRT
Compaq P900 19” CRT Compaq P1100 21” CRT Compaq TFT5010 15” Flat Panel Compaq TFT8020 18” Flat Panel
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2.3 MECHANICAL DESIGN
The following subsections describe the mechanical (physical) aspects of the Compaq D315 PC and the HP Business PC d325 models.
CAUTION: Voltages are present within the system unit whenever the unit is plugged into a live AC outlet, regardless of the system's “Power On” condition. Always
!
disconnect the power cable from the power outlet and/or from the system unit
before handling the system unit in any way.
NOTE: The following information is intended primarily for identification purposes only. Before servicing these systems refer to the applicable Service Reference
Guide. Service personnel should review training materials also available on
these products.
2.3.1 CABINET LAYOUTS
2.3.1.1 Front Views
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2
3
5
10
8
Compaq D315 hp d325
Item Description
1 CD-ROM drive headphone jack 2 CD-ROM drive volume control 3 CD-ROM drive activity LED 4 CD-ROM drive open/close button 5 1.44-MB diskette drive activity LED 6 1.44-MB diskette drive eject button 7 Microphone In Jack 8 Headphone Out Jack
9 Universal Serial Bus Connectors (2) 10 Power LED 11 Power Button 12 Hard Drive Activity LED
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12
4
9
7
8
11
12
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10
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2
3
5
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Figure 2-2. Cabinet Layout, Front Views
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