Compaq Evo D500 Technical Reference Manual page 10

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