Compaq Evo D500

Technical Reference Guide
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
A.4 SYSTEM ERROR MESSAGES (1
XX
-
XX
) ................................................................................ A-3
A.5 MEMORY ERROR MESSAGES (2
XX
-
XX
).............................................................................. A-4
A.6 KEYBOARD ERROR MESSAGES (30
X
-
XX
).......................................................................... A-4
A.7 PRINTER ERROR MESSAGES (4
XX
-
XX
) ............................................................................... A-5
A.8 VIDEO (GRAPHICS) ERROR MESSAGES (5
XX
-
XX
) ............................................................ A-5
A.9 DISKETTE DRIVE ERROR MESSAGES (6
XX
-
XX
)................................................................ A-6
A.10 SERIAL INTERFACE ERROR MESSAGES (11
XX
-
XX
) ..................................................... A-6
A.11 MODEM COMMUNICATIONS ERROR MESSAGES (12
XX
-
XX
)..................................... A-7
A.12 SYSTEM STATUS ERROR MESSAGES (16
XX
-
XX
) .......................................................... A-8
Compaq Deskpro and Evo Personal Computers
Featuring Intel Celeron and Pentium III Processors
Fifth Edition –- March 2002
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