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Technical Reference Guide
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T e c h n i c a l R e f e r e n c e Gu i d e
for
Compaq Deskpro Personal Computers
First Edition - July 2000
Second Edition September 2000
Third Edition April 2001
Document Number 12YJ-0700C-WWEN
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TABLE OF CONTENTS
CHAPTER 1 INTRODUCTION ....................................................................................................................
1.1 ABOUT THIS GUIDE .................................................................................................................. 1-1
1.1.1 ONLINE VIEWING .............................................................................................................. 1-1
1.1.2 HARDCOPY .......................................................................................................................... 1-2
1.2 ADDITIONAL INFORMATION SOURCES .............................................................................. 1-2
1.3 MODEL NUMBERING CONVENTION.................................................................................... 1-2
1.4 SERIAL NUMBER ...................................................................................................................... 1-2
1.5 NOTATIONAL CONVENTIONS ................................................................................................ 1-3
1.5.1 VALUES ............................................................................................................................... 1-3
1.5.2 RANGES ............................................................................................................................... 1-3
1.5.3 REGISTER NOTATION AND USAGE .............................................................................. 1-3
1.5.4 BIT NOTATION ................................................................................................................... 1-3
1.6 COMMON ACRONYMS AND ABBREVIATIONS .................................................................. 1-4
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 .......................................................................................................... 2-5
2.3.2 CHASSIS LAYOUTS ........................................................................................................... 2-7
2.3.3 BOARD LAYOUTS............................................................................................................ 2-10
2.4 SYSTEM ARCHITECTURE ...................................................................................................... 2-12
2.4.1 PROCESSORS .................................................................................................................... 2-14
2.4.2 CHIPSET ............................................................................................................................. 2-16
2.4.3 SUPPORT COMPONENTS................................................................................................ 2-16
2.4.4 SYSTEM MEMORY .......................................................................................................... 2-17
2.4.5 MASS STORAGE ............................................................................................................... 2-17
2.4.6 SERIAL AND PARALLEL INTERFACES ....................................................................... 2-17
2.4.7 UNIVERSAL SERIAL BUS INTERFACE ........................................................................ 2-17
2.4.8 NETWORK INTERFACE CONTROLLER ....................................................................... 2-17
2.4.9 GRAPHICS SUBSYSTEM ................................................................................................. 2-18
2.4.10 AUDIO SUBSYSTEM ........................................................................................................ 2-19
2.5 SPECIFICATIONS ..................................................................................................................... 2-19
CHAPTER 3 PROCESSOR/MEMORY SUBSYSTEM ..............................................................................
3.1 INTRODUCTION ......................................................................................................................... 3-1
3.2 PROCESSOR ................................................................................................................................ 3-2
3.2.1 CELERON PROCESSOR ..................................................................................................... 3-2
3.2.2 PENTIUM III PROCESSOR................................................................................................. 3-3
3.2.3 PROCESSOR UPGRADING ................................................................................................ 3-4
3.3 MEMORY SUBSYSTEM ............................................................................................................. 3-5
3.4 SUBSYSTEM CONFIGURATION .............................................................................................. 3-8
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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 CONFIGURATION ....................................................................................................... 4-8
4.2.8 PCI CONNECTOR................................................................................................................ 4-9
4.3 AGP BUS OVERVIEW .............................................................................................................. 4-10
4.3.1 BUS TRANSACTIONS ...................................................................................................... 4-10
4.3.2 AGP CONFIGURATION ................................................................................................... 4-13
4.3.3 AGP CONNECTOR ............................................................................................................ 4-14
4.4 SYSTEM RESOURCES ............................................................................................................. 4-15
4.4.1 INTERRUPTS ..................................................................................................................... 4-15
4.4.2 DIRECT MEMORY ACCESS............................................................................................ 4-19
4.5 SYSTEM CLOCK DISTRIBUTION .......................................................................................... 4-22
4.6 REAL-TIME CLOCK AND CONFIGURATION MEMORY .................................................. 4-23
4.6.1 CLEARING CMOS ............................................................................................................. 4-23
4.6.2 CMOS ARCHIVE AND RESTORE................................................................................... 4-24
4.6.3 STANDARD CMOS LOCATIONS ................................................................................... 4-24
4.7 SYSTEM MANAGEMENT........................................................................................................ 4-33
4.7.1 SECURITY FUNCTIONS .................................................................................................. 4-33
4.7.2 POWER MANAGEMENT ................................................................................................. 4-35
4.7.3 SYSTEM STATUS ............................................................................................................. 4-35
4.7.4 THERMAL SENSING AND COOLING ........................................................................... 4-36
4.8 REGISTER MAP AND MISCELLANEOUS FUNCTIONS ..................................................... 4-38
4.8.1 SYSTEM I/O MAP ............................................................................................................. 4-38
4.8.2 82801 ICH2 GENERAL PURPOSE FUNCTIONS............................................................ 4-39
4.8.3 LPC47B357 I/O CONTROLLER FUNCTIONS ................................................................ 4-40
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 RS-232 INTERFACE ............................................................................................................ 5-8
5.4.2 COM1 PORT HEADER ........................................................................................................ 5-9
5.4.3 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
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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 ..................................................................................................... 5-22
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
5.9.7 NIC UPGRADING/CHANGING ....................................................................................... 5-37
CHAPTER 6 EMBEDDED GRAPHICS SUBSYSTEM .............................................................................
6.1 INTRODUCTION ......................................................................................................................... 6-1
6.2 INTEL 815E-BASED GRAPHICS SUBSYSTEM....................................................................... 6-2
6.2.1 FUNCTIONAL DESCRIPTION........................................................................................... 6-2
6.2.2 DISPLAY MODES ............................................................................................................... 6-4
6.2.3 MEMORY MANAGEMENT ............................................................................................... 6-4
6.2.4 815E-BASED GRAPHICS PROGRAMMING .................................................................... 6-5
6.2.5 UPGRADING 815E-BASED GRAPHICS ........................................................................... 6-5
6.3 NVIDIA GRAPHICS SUBSYSTEM ............................................................................................ 6-6
6.3.1 DISPLAY MODES ............................................................................................................... 6-7
6.3.2 NVIDIA GRAPHICS PROGRAMMING ............................................................................. 6-7
6.3.3 NVIDIA GRAPHICS UPGRADING.................................................................................... 6-7
6.4 MONITOR POWER MANAGEMENT CONTROL .................................................................... 6-8
6.5 MONITOR CONNECTOR ........................................................................................................... 6-8
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CHAPTER 7 POWER SUPPLY AND DISTRIBUTION ............................................................................
7.1 INTRODUCTION ......................................................................................................................... 7-1
7.1 POWER SUPPLY ASSEMBLY/CONTROL ............................................................................... 7-1
7.1.1 POWER SUPPLY ASSEMBLY ........................................................................................... 7-2
7.1.1 POWER CONTROL ............................................................................................................. 7-3
7.1 POWER DISTRIBUTION ............................................................................................................ 7-5
7.1.1 3.3/5/12 VDC DISTRIBUTION ........................................................................................... 7-5
7.1.1 LOW VOLTAGE DISTRIBUTION ..................................................................................... 7-7
7.1 SIGNAL DISTRIBUTION............................................................................................................ 7-8
CHAPTER 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 ..................................................................................................................... 8-4
8.3.1 BOOT DEVICE ORDER ...................................................................................................... 8-4
8.3.2 NETWORK BOOT (F12) SUPPORT ................................................................................... 8-4
8.3.3 MEMORY DETECTION AND CONFIGURATION .......................................................... 8-5
8.3.4 BOOT ERROR CODES ........................................................................................................ 8-5
8.4 SETUP UTILITY .......................................................................................................................... 8-6
8.5 CLIENT MANAGEMENT FUNCTIONS .................................................................................. 8-12
8.5.1 SYSTEM ID AND ROM TYPE ......................................................................................... 8-14
8.5.2 EDID RETRIEVE ............................................................................................................... 8-14
8.5.3 TEMPERATURE STATUS ................................................................................................ 8-14
8.5.4 DRIVE FAULT PREDICTION .......................................................................................... 8-15
8.6 PNP SUPPORT ........................................................................................................................... 8-15
8.6.1 SMBIOS .............................................................................................................................. 8-16
8.7 POWER MANAGEMENT FUNCTIONS .................................................................................. 8-17
8.7.1 INDEPENDENT PM SUPPORT ........................................................................................ 8-17
8.7.2 ACPI SUPPORT.................................................................................................................. 8-19
8.7.3 APM 1.2 SUPPORT ............................................................................................................ 8-19
8.8 USB LEGACY SUPPORT .......................................................................................................... 8-23
A. APPENDIX A ERROR MESSAGES AND CODES ............................................................................
A.1 INTRODUCTION ........................................................................................................................ A-1
A.2 BEEP/KEYBOARD LED CODES .............................................................................................. A-1
A.3 POWER-ON SELF TEST (POST) MESSAGES ......................................................................... A-2
SYSTEM ERROR MESSAGES (1XX-XX) .................................................................................. A-3
A.4
MEMORY ERROR MESSAGES (2XX-XX) ................................................................................ A-4
A.5
A.6 KEYBOARD ERROR MESSAGES (30X-XX) ............................................................................ A-4
PRINTER ERROR MESSAGES (4XX-XX) ................................................................................. A-5
A.7
VIDEO (GRAPHICS) ERROR MESSAGES (5XX-XX) .............................................................. A-5
A.8
A.9 DISKETTE DRIVE ERROR MESSAGES (6XX-XX) ................................................................. A-6
SERIAL INTERFACE ERROR MESSAGES (11XX-XX)....................................................... A-6
A.10
MODEM COMMUNICATIONS ERROR MESSAGES (12XX-XX) ...................................... A-7
A.11
A.12 SYSTEM STATUS ERROR MESSAGES (16XX-XX) ............................................................ A-8
HARD DRIVE ERROR MESSAGES (17XX-XX) ................................................................... A-8
A.13
A.14 HARD DRIVE ERROR MESSAGES (19XX-XX) ................................................................... A-9
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A.15 VIDEO (GRAPHICS) ERROR MESSAGES (24XX-XX) ........................................................ A-9
A.16 AUDIO ERROR MESSAGES (3206-XX).............................................................................. A-10
DVD/CD-ROM ERROR MESSAGES (33XX-XX) ................................................................ A-10
A.17
A.18 NETWORK INTERFACE ERROR MESSAGES (60XX-XX)............................................... A-10
SCSI INTERFACE ERROR MESSAGES (65XX-XX, 66XX-XX, 67XX-XX) ......................... A-11
A.19
POINTING DEVICE INTERFACE ERROR MESSAGES (8601-XX) ................................. A-11
A.20
APPENDIX B ASCII CHARACTER SET ...................................................................................................
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
APPENDIX D COMPAQ/NVIDIA TNT2 PRO AGP GRAPHICS CARD ...............................................
D.1 INTRODUCTION ........................................................................................................................ D-1
D.2 FUNCTIONAL DESCRIPTION .................................................................................................. D-2
D.3 DISPLAY MODES ...................................................................................................................... D-3
D.4 SOFTWARE SUPPORT INFORMATION ................................................................................. D-4
D.5 POWER MANAGEMENT AND CONSUMPTION ................................................................... D-4
D.6 CONNECTORS............................................................................................................................ D-5
D.6.1 MONITOR CONNECTOR .................................................................................................. D-5
APPENDIX E COMPAQ/NVIDIA QUADRO2 AGP GRAPHICS CARDS .............................................
E.1 INTRODUCTION ........................................................................................................................ E-1
E.2 FUNCTIONAL DESCRIPTION .................................................................................................. E-2
E.3 DISPLAY MODES ...................................................................................................................... E-3
E.4 SOFTWARE SUPPORT INFORMATION ................................................................................. E-4
E.5 POWER MANAGEMENT AND CONSUMPTION ................................................................... E-4
E.6 CONNECTORS............................................................................................................................ E-5
E.6.1 MONITOR CONNECTOR E-5
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APPENDIX F COMPAQ/MATROX MILLENNIUM AGP GRAPHICS CARDS ..................................
F.1 INTRODUCTION .........................................................................................................................F-1
F.2 FUNCTIONAL DESCRIPTION ...................................................................................................F-2
F.3 DISPLAY MODES .......................................................................................................................F-3
F.4 SOFTWARE SUPPORT INFORMATION ..................................................................................F-4
F.5 POWER MANAGEMENT AND CONSUMPTION ....................................................................F-4
F.6 CONNECTORS.............................................................................................................................F-5
F.6.1 MONITOR CONNECTOR F-5
APPENDIX G COMPAQ/ADAPTEC SCSI HOST ADAPTER ..............................................................
G.1 INTRODUCTION ...................................................................................................................... G-1
G.2 FUNCTIONAL DESCRIPTION ................................................................................................ G-2
G.3 SCSI ADAPTER PROGRAMMING ......................................................................................... G-3
G.3.1 SCSI ADAPTER CONFIGURATION .............................................................................. G-3
G.3.2 SCSI ADAPTER CONTROL ............................................................................................ G-3
G.4 SPECIFICATIONS .................................................................................................................... G-3
G.5 SCSI CONNECTORS ................................................................................................................ G-4
G.5.1 EXTERNAL 50-PIN ULTRA SCSI CONNECTOR ......................................................... G-4
G.5.2 INTERNAL 50-PIN ULTRA SCSI CONNECTOR .......................................................... G-5
G.5.3 INTERNAL 68-PIN ULTRA160 SCSI CONNECTOR G-6
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LIST OF FIGURES
FIGURE 21. COMPAQ DESKPRO PERSONAL COMPUTERS WITH MONITORS ................................................ 2-1
FIGURE 22. COMPAQ DESKPROS, FRONT VIEWS ........................................................................................ 2-5
FIGURE 23. COMPAQ DESKPROS, REAR VIEWS .......................................................................................... 2-6
FIGURE 24. SMALL FORM FACTOR CHASSIS LAYOUT, TOP VIEW ............................................................. 2-7
FIGURE 25. SLIM DESKTOP CHASSIS LAYOUT, TOP VIEW ......................................................................... 2-8
FIGURE 26. CONFIGURABLE MINITOWER CHASSIS LAYOUT, LEFT SIDE VIEW (MINITOWER
CONFIGURATION).................................................................................................................................... 2-9
FIGURE 27. SMALL FORM FACTOR BOARD LAYOUTS ............................................................................. 2-10
FIGURE 28. SLIM DESKTOP OR CONFIGURABLE MINITOWER SYSTEM BOARD LAYOUT ......................... 2-11
FIGURE 29. COMPAQ DESKPRO ARCHITECTURE, BLOCK DIAGRAM .......................................................... 2-13
FIGURE 210. PROCESSOR ASSEMBLY AND MOUNTING ............................................................................ 2-14
FIGURE 31. PROCESSOR/MEMORY SUBSYSTEM ARCHITECTURE ............................................................... 3-1
FIGURE 32. CELERON PROCESSOR INTERNAL ARCHITECTURE .................................................................. 3-2
FIGURE 33. PENTIUM III PROCESSOR INTERNAL ARCHITECTURE .............................................................. 3-3
FIGURE 34. SYSTEM MEMORY MAP ........................................................................................................... 3-7
FIGURE 4-1. PCI BUS DEVICES AND FUNCTIONS .......................................................................................... 4-2
FIGURE 4-2. CONFIGURATION CYCLE .......................................................................................................... 4-4
FIGURE 4-3. PCI CONFIGURATION SPACE MAPPING .................................................................................... 4-5
FIGURE 4-4. PCI BUS CONNECTOR (32-BIT TYPE) ...................................................................................... 4-9
FIGURE 4-5. AGP 1X DATA TRANSFER (PEAK TRANSFER RATE: 266 MB/S) ........................................... 4-11
FIGURE 4-6. AGP 2X DATA TRANSFER (PEAK TRANSFER RATE: 532 MB/S) ........................................... 4-12
FIGURE 4-7. AGP 4X DATA TRANSFER (PEAK TRANSFER RATE: 1064 MB/S) ......................................... 4-12
FIGURE 4-8. UNIVERSAL AGP BUS CONNECTOR ....................................................................................... 4-14
FIGURE 4-9. MASKABLE INTERRUPT PROCESSING, BLOCK DIAGRAM ....................................................... 4-15
FIGURE 4-10. CONFIGURATION MEMORY MAP .......................................................................................... 4-23
FIGURE 4-11. SMALL FORM FACTOR FAN CONTROL BLOCK DIAGRAM ..................................................... 4-37
FIGURE 4-12. SLIM DESKTOP/CONFIGURABLE MINITOWER FAN CONTROL BLOCK DIAGRAM .................. 4-37
FIGURE 5-1. 40-PIN PRIMARY IDE CONNECTOR (ON SYSTEM BOARD). ....................................................... 5-3
FIGURE 5-2. 34-PIN DISKETTE DRIVE CONNECTOR. .................................................................................... 5-7
FIGURE 5-3. SERIAL INTERFACE CONNECTOR (MALE DB-9 AS VIEWED FROM REAR OF CHASSIS) .............. 5-8
FIGURE 5-4. COM1 SERIAL INTERFACE HEADER (SMALL FORM FACTOR SYSTEM BOARD ONLY) .............. 5-9
FIGURE 5-5. PARALLEL INTERFACE CONNECTOR (FEMALE DB-25 AS VIEWED FROM REAR OF CHASSIS) . 5-15
FIGURE 5-6. 8042-TO-KEYBOARD TRANSMISSION OF CODE EDH, TIMING DIAGRAM .............................. 5-16
FIGURE 5-7. KEYBOARD OR POINTING DEVICE INTERFACE CONNECTOR .................................................. 5-21
FIGURE 5-8. USB I/F, BLOCK DIAGRAM ................................................................................................... 5-22
FIGURE 5-9. USB PACKET FORMATS ......................................................................................................... 5-23
FIGURE 5-10. UNIVERSAL SERIAL BUS CONNECTOR ................................................................................. 5-25
FIGURE 5-11. AUDIO SUBSYSTEM FUNCTIONAL BLOCK DIAGRAM ........................................................... 5-27
FIGURE 5-12. AC'97 LINK BUS PROTOCOL ............................................................................................... 5-28
FIGURE 5-13. AD1881 AUDIO CODEC FUNCTIONAL BLOCK DIAGRAM .................................................... 5-29
FIGURE 5-14. NETWORK INTERFACE CONTROLLER BLOCK DIAGRAM ...................................................... 5-32
FIGURE 5-15. ETHERNET TPE CONNECTOR (RJ-45, VIEWED FROM CARD EDGE) ...................................... 5-36
FIGURE 5-16. REMOTE SYSTEM ALERT IMPLEMENTATION (GENERIC REPRESENTATION)......................... 5-37
FIGURE 5-17. RSA LOGIC, BLOCK DIAGRAM ............................................................................................ 5-37
FIGURE 6-1. 815E-BASED GRAPHICS, BLOCK DIAGRAM ............................................................................. 6-2
FIGURE 6-2. 82815 GMCH INTEGRATED GRAPHICS SUBSYSTEM .............................................................. 6-3
FIGURE 6-3. NVIDIA TNT2 PRO GRAPHICS SUBSYSTEM ............................................................................. 6-6
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FIGURE 71. POWER DISTRIBUTION AND CONTROL, BLOCK DIAGRAM ...................................................... 7-1
FIGURE 72. SMALL FORM FACTOR POWER CABLE DIAGRAM ................................................................... 7-5
FIGURE 73. SLIM DESKTOP/CONFIGURABLE MINITOWER POWER CABLE DIAGRAM................................. 7-6
FIGURE 74. LOW VOLTAGE SUPPLY AND DISTRIBUTION DIAGRAM .......................................................... 7-7
FIGURE 75. SMALL FORM FACTOR SIGNAL DISTRIBUTION DIAGRAM ....................................................... 7-8
FIGURE 76. SLIM DESKTOP/CONFIGURABLE MINITOWER SIGNAL DISTRIBUTION DIAGRAM ................... 7-9
FIGURE 77. HEADER PINOUTS .................................................................................................................. 7-10
FIGURE B1. ASCII CHARACTER SET ........................................................................................................ B-1
FIGURE C1. KEYSTROKE PROCESSING ELEMENTS, BLOCK DIAGRAM ...................................................... C-2
FIGURE C2. PS/2 KEYBOARD-TO-SYSTEM TRANSMISSION, TIMING DIAGRAM ....................................... C-3
FIGURE C3. U.S. ENGLISH (101-KEY) KEYBOARD KEY POSITIONS ......................................................... C-5
FIGURE C4. NATIONAL (102-KEY) KEYBOARD KEY POSITIONS .............................................................. C-5
FIGURE C5. U.S. ENGLISH WINDOWS (101W-KEY) KEYBOARD KEY POSITIONS .................................... C-6
FIGURE C6. NATIONAL WINDOWS (102W-KEY) KEYBOARD KEY POSITIONS ......................................... C-6
FIGURE C7. 7-BUTTON EASY ACCESS KEYBOARD LAYOUT ..................................................................... C-7
FIGURE C8. 8-BUTTON EASY ACCESS KEYBOARD LAYOUT ..................................................................... C-7
FIGURE C9. PS/2 KEYBOARD CABLE CONNECTOR (MALE).................................................................... C-16
FIGURE C10. USB KEYBOARD CABLE CONNECTOR (MALE) ................................................................. C-16
FIGURE D-1. COMPAQ/NVIDIA TNT2 PRO AGP GRAPHICS CARD (P/N 198998-B21) LAYOUT ............. D-1
FIGURE D-2. NVIDIA TNT2 PRO GRAPHICS CARD BLOCK DIAGRAM....................................................... D-2
FIGURE D-3. VGA MONITOR CONNECTOR, (FEMALE DB-15, AS VIEWED FROM REAR). ............................. D-5
FIGURE E-1. COMPAQ/NVIDIA QUADRO2 EX/MXR AGP GRAPHICS CARD LAYOUT ............................. E-1
FIGURE E-2. NVIDIA QUADRO2 MXR GRAPHICS CARD BLOCK DIAGRAM .............................................. E-2
FIGURE E-3. VGA MONITOR CONNECTOR (FEMAL DB-15, AS VIEWED FROM REAR) ................................ E-2
FIGURE F-1. COMPAQ/MATROX MILLIENNIUM AGP GRAPHICS CARD LAYOUT ........................................F-1
FIGURE F-2. MATROX MILLENNIUM GRAPHICS CARD BLOCK DIAGRAM ....................................................F-2
FIGURE F-3. VGA MONITOR CONNECTOR (FEMAL DB-15, AS VIEWED FROM REAR) .................................F-2
FIGURE G1. COMPAQ/ADAPTEC 29160N SCSI HOST ADAPTER CARD LAYOUT (PCA# 157342-001) .... G-1
FIGURE G2. COMPAQ/ADAPTEC ULTRA SCSI ADAPTER CARD BLOCK DIAGRAM ................................... G-2
FIGURE G3. EXTERNAL ULTRA SCSI CONNECTOR (50-PIN)..................................................................... G-4
FIGURE G4. INTERNAL 50-PIN ULTRA SCSI CONNECTOR ........................................................................ G-5
FIGURE G5. ULTRA 160 SCSI CONNECTOR (68-PIN HEADER TYPE)........................................................ G-6
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LIST OF TABLES
TABLE 11. ACRONYMS AND ABBREVIATIONS ............................................................................................ 1-3
TABLE 2-1. FEATURE DIFFERENCE MATRIX ................................................................................................ 2-2
TABLE 2-2. CHIPSET COMPARISON ............................................................................................................ 2-16
TABLE 2-3. SUPPORT COMPONENT FUNCTIONS.......................................................................................... 2-16
TABLE 2-4. GRAPHICS SUBSYSTEM COMPARISON ..................................................................................... 2-18
TABLE 2-5. ENVIRONMENTAL SPECIFICATIONS ......................................................................................... 2-19
TABLE 2-6. ELECTRICAL SPECIFICATIONS ................................................................................................. 2-19
TABLE 2-7. PHYSICAL SPECIFICATIONS ..................................................................................................... 2-20
TABLE 2-8. DISKETTE DRIVE SPECIFICATIONS .......................................................................................... 2-20
TABLE 2-9. 48X CD-ROM DRIVE SPECIFICATIONS ................................................................................... 2-21
TABLE 2-10. HARD DRIVE SPECIFICATIONS ............................................................................................... 2-21
TABLE 31. CELERON PROCESSOR STATISTICAL COMPARISON ................................................................... 3-2
TABLE 32. PENTIUM III PROCESSOR STATISTICAL COMPARISON .............................................................. 3-3
TABLE 33. SPD ADDRESS MAP (SDRAM DIMM)...................................................................................... 3-6
TABLE 34. HOST/PCI BRIDGE CONFIGURATION REGISTERS (GMCH, FUNCTION 0).................................. 3-8
TABLE 4-1. PCI DEVICE CONFIGURATION ACCESS ..................................................................................... 4-4
TABLE 4-2. SYSTEM BOARD PCI DEVICE IDENTIFICATION ......................................................................... 4-5
TABLE 4-3. PCI BUS MASTERING DEVICES ................................................................................................. 4-6
TABLE 4-4. LPC BRIDGE CONFIGURATION REGISTERS (ICH2, FUNCTION 0) .............................................. 4-8
TABLE 4-5. PCI BUS CONNECTOR PINOUT .................................................................................................. 4-9
TABLE 4-6. PCI/AGP BRIDGE CONFIGURATION REGISTERS (MCH, FUNCTION 1) .................................... 4-13
TABLE 4-7. AGP BUS CONNECTOR PINOUT................................................................................................ 4-14
TABLE 4-8. MASKABLE INTERRUPT PRIORITIES AND ASSIGNMENTS ......................................................... 4-16
TABLE 4-9. MASKABLE INTERRUPT CONTROL REGISTERS ........................................................................ 4-17
TABLE 4-10. DEFAULT DMA CHANNEL ASSIGNMENTS ............................................................................ 4-19
TABLE 4-11. DMA PAGE REGISTER ADDRESSES ....................................................................................... 4-20
TABLE 4-12. DMA CONTROLLER REGISTERS ............................................................................................ 4-21
TABLE 4-13. CLOCK GENERATION AND DISTRIBUTION ............................................................................. 4-22
TABLE 4-14. CONFIGURATION MEMORY (CMOS) MAP ............................................................................ 4-24
TABLE 4-15. SYSTEM BOOT/ROM FLASH STATUS LED INDICATIONS ...................................................... 4-35
TABLE 4-16. SYSTEM OPERATIONAL STATUS LED INDICATIONS .............................................................. 4-36
TABLE 4-17. SYSTEM I/O MAP .................................................................................................................. 4-38
TABLE 4-18. 82801 ICH2 GPIO REGISTER UTILIZATION .......................................................................... 4-39
TABLE 4-19 LPC47B357 CONTROL REGISTERS ......................................................................................... 4-40
TABLE 4-20. LPC47B357 GPIO REGISTER UTILIZATION .......................................................................... 4-41
TABLE 51. IDE PCI CONFIGURATION REGISTERS ..................................................................................... 5-2
TABLE 52. IDE BUS MASTER CONTROL REGISTERS .................................................................................. 5-2
TABLE 53. 40-PIN PRIMARY IDE CONNECTOR PINOUT ............................................................................. 5-3
TABLE 54. DISKETTE DRIVE CONTROLLER CONFIGURATION REGISTERS .................................................. 5-5
TABLE 55. DISKETTE DRIVE INTERFACE CONTROL REGISTERS ................................................................. 5-6
TABLE 56. 34-PIN DISKETTE DRIVE CONNECTOR PINOUT ......................................................................... 5-7
TABLE 57. DB-9 SERIAL CONNECTOR PINOUT .......................................................................................... 5-8
TABLE 58. SERIAL INTERFACE CONFIGURATION REGISTERS ..................................................................... 5-9
TABLE 59. SERIAL INTERFACE CONTROL REGISTERS .............................................................................. 5-10
TABLE 510. PARALLEL INTERFACE CONFIGURATION REGISTERS ............................................................ 5-13
TABLE 511. PARALLEL INTERFACE CONTROL REGISTERS ....................................................................... 5-14
TABLE 512. DB-25 PARALLEL CONNECTOR PINOUT ............................................................................... 5-15
TABLE 513. 8042-TO-KEYBOARD COMMANDS ....................................................................................... 5-17
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TABLE 514. KEYBOARD INTERFACE CONFIGURATION REGISTERS .......................................................... 5-18
TABLE 515. CPU COMMANDS TO THE 8042 ........................................................................................... 5-20
TABLE 516. KEYBOARD/POINTING DEVICE CONNECTOR PINOUT ........................................................... 5-21
TABLE 517. USB INTERFACE CONFIGURATION REGISTERS ..................................................................... 5-24
TABLE 518. USB CONTROL REGISTERS ................................................................................................... 5-24
TABLE 519. USB CONNECTOR PINOUT.................................................................................................... 5-25
TABLE 520. USB CABLE LENGTH DATA ................................................................................................. 5-25
TABLE 521. AC'97 AUDIO CONTROLLER PCI CONFIGURATION REGISTERS ........................................... 5-30
TABLE 522. AC'97 AUDIO CODEC CONTROL REGISTERS........................................................................ 5-30
TABLE 523. AUDIO SUBSYSTEM SPECIFICATIONS .................................................................................... 5-31
TABLE 524. AOL EVENTS........................................................................................................................ 5-33
TABLE 525. NIC CONTROLLER PCI CONFIGURATION REGISTERS .......................................................... 5-35
TABLE 526. NIC CONTROL REGISTERS.................................................................................................... 5-35
TABLE 527. 82559 NIC OPERATING SPECIFICATIONS ............................................................................. 5-36
TABLE 528. REMOTE SYSTEM ALERT EVENTS ......................................................................................... 5-38
TABLE 6-1. INTEL GRAPHICS DISPLAY MODES ............................................................................................ 6-4
TABLE 6-2. 815-BASED GRAPHICS CONTROLLER PCI CONFIGURATION REGISTERS ................................... 6-5
TABLE 6-3. NVIDIA TNT2 PRO GRAPHICS DISPLAY MODES...................................................................... 6-7
TABLE 6-4. MONITOR POWER MANAGEMENT CONDITIONS ........................................................................ 6-8
TABLE 6-5. DB-15 MONITOR CONNECTOR PINOUT ..................................................................................... 6-8
TABLE 8-1. BOOT BLOCK CODES ................................................................................................................... 8-2
TABLE 8-2. BOOT ERROR CODES ................................................................................................................... 8-5
TABLE 8-3. SETUP UTILITY FUNCTIONS ....................................................................................................... 8-6
TABLE 8-4. CLIENT MANAGEMENT FUNCTIONS (INT15) .......................................................................... 8-12
TABLE 8-5. PNP BIOS FUNCTIONS ............................................................................................................ 8-15
TABLE 8-6. APM BIOS FUNCTIONS ............................................................................................................ 8-20
TABLE A1. BEEP/KEYBOARD LED CODES ............................................................................................... A-1
TABLE A2. POWER-ON SELF TEST (POST) MESSAGES ............................................................................ A-2
TABLE A3. SYSTEM ERROR MESSAGES .................................................................................................... A-3
TABLE A4. MEMORY ERROR MESSAGES .................................................................................................. A-4
TABLE A5. KEYBOARD ERROR MESSAGES ............................................................................................... A-4
TABLE A6. PRINTER ERROR MESSAGES .................................................................................................... A-5
TABLE A7. VIDEO (GRAPHICS) ERROR MESSAGES ................................................................................... A-5
TABLE A8. DISKETTE DRIVE ERROR MESSAGES ...................................................................................... A-6
TABLE A9. SERIAL INTERFACE ERROR MESSAGES ................................................................................... A-6
TABLE A10. SERIAL INTERFACE ERROR MESSAGES ................................................................................. A-7
TABLE A11. SYSTEM STATUS ERROR MESSAGES ..................................................................................... A-8
TABLE A12. HARD DRIVE ERROR MESSAGES........................................................................................... A-8
TABLE A13. HARD DRIVE ERROR MESSAGES........................................................................................... A-9
TABLE A14. HARD DRIVE MESSAGES....................................................................................................... A-9
TABLE A15. AUDIO ERROR MESSAGES................................................................................................... A-10
TABLE A16. DVD/CD-ROM DRIVE ERROR MESSAGES ........................................................................ A-10
TABLE A17. NETWORK INTERFACE ERROR MESSAGES .......................................................................... A-10
TABLE A18. SCSI INTERFACE ERROR MESSAGES .................................................................................. A-11
TABLE A19. POINTING DEVICE INTERFACE ERROR MESSAGES .............................................................. A-11
TABLE C1. KEYBOARD-TO-SYSTEM COMMANDS ................................................................................... C-11
TABLE C2. KEYBOARD SCAN CODES ...................................................................................................... C-12
TABLE D-1. NVIDIA TNT2 PRO GRAPHICS DISPLAY MODES ................................................................... D-3
TABLE D-2. MONITOR POWER MANAGEMENT CONDITIONS ...................................................................... D-4
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TABLE D-3. DB-15 MONITOR CONNECTOR PINOUT ................................................................................... D-5
TABLE E-1. NVIDIA QUADRO2 EX/MXR GRAPHICS DISPLAY MODES.................................................... E-3
TABLE E-2. MONITOR POWER MANAGEMENT CONDITIONS ....................................................................... E-4
TABLE E-3. DB-15 MONITOR CONNECTOR ................................................................................................ E-5
TABLE F-1. MATROX MILLENNIUM GRAPHICS DISPLAY MODES ................................................................F-3
TABLE F-2. MONITOR POWER MANAGEMENT CONDITIONS ........................................................................F-4
TABLE F-3. DB-15 MONITOR CONNECTOR .................................................................................................F-5
TABLE G1. SCSI HOST ADAPTER CARD CONTROL REGISTER MAPPING ................................................... G-3
TABLE G2. ULTRA SCSI HOST ADAPTER CARD SPECIFICATIONS .............................................................. G-3
TABLE G3. EXTERNAL 50-PIN ULTRA SCSI CONNECTOR PINOUT ............................................................. G-4
TABLE G4. INTERNAL 50-PIN ULTRA SCSI CONNECTOR PINOUT .............................................................. G-5
TABLE G5. ULTRA 160 SCSI CONNECTOR PINOUT .................................................................................... G-6
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Chapter 1
INTRODUCTION
Chapter 1 INTRODUCTION
1.
1.1 ABOUT THIS GUIDE
This guide provides technical information about Compaq Deskpro EN and Deskpro Workstation
AP230 Personal Computers that feature Intel Celeron and Pentium III processors and the Intel
8 1 5 E c h i p s e t . T h i s d o c u m e n t d e s c r i b e s i n d e t a i l t h e s y s t e m ' s d e s i g n a n d o p e r a t i o n fo r
programmers, engineers, technicians, and system administrators, as well as end-users wanting
detailed i nformation.
T h e ch a p t e r s o f t h i s g u i d e p r i m a r i l y d e s c r i b e t h e h a r d w a r e an d f i r m w a r e e l e m e n t s a n d p r i m a r i l y
deal with the system board and the power supply assembly. The appendices contain general data
s u c h a s e r r o r co d e s an d i n f o r m a t i o n ab o u t s t a n d a r d p e r i p h e r a l d e v i c e s s u c h a s k e y b o a r d s , g r a p h i c s
c a r d s , an d c o m m u n i c a t i o n s a d a p t e r s .
This guide can be used either as an online document o r i n h ardcopy form.
1.1.1 ONLINE VIEWING
O n l i n e v i e w i n g a l l o w s f o r q u i c k n a v i g a t i n g an d c o n v e n i e n t s e a r c h i n g t h r o u g h t h e d o c u m e n t . A
color monitor will also allow the user to view the color shading used to highlight differential data.
A s o f t c o p y o f t h e l a t e s t e d i t i o n o f t h i s g u i d e i s a v a i l a b l e fo r d o w n l o a d i n g i n . p d f f i l e f o r m a t a t t h e
URL listed b elow:
http://www.compaq.com/support/techpubs/technical_reference_guides/index.html
Viewing the file requires a copy of Adobe Acrobat Reader available at no charge from Adobe
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