Compaq EN Series

Technical Reference Guide

Compaq Deskpro EN Series of Personal Computers

Desktop and Minitower Form Factors

Third Edition–- September1998

8.3 MEMORY DETECTION AND CONFIGURATION..............................................................8-3

8.4 DESKTOP MANAGEMENT SUPPORT ...............................................................................8-4

8.4.1 SYSTEM ID................................................................................................................... 8-6

8.4.2 SYSTEM INFORMATION TABLE............................................................................... 8-6

8.4.3 EDID RETRIEVE........................................................................................................ 8-13

8.4.4 DRIVE FAULT PREDICTION.....................................................................................8-13

8.4.5 SYSTEM MAP RETRIEVAL.......................................................................................8-14

8.4.6 FLASH ROM FUNCTIONS.........................................................................................8-15

8.4.7 POWER BUTTON FUNCTIONS.................................................................................8-15

8.4.8 ACCESSING CMOS.................................................................................................... 8-16

8.4.9 ACCESSING CMOS FEATURE BITS......................................................................... 8-16

8.4.10 SECURITY FUNCTIONS............................................................................................ 8-18

8.5 PNP SUPPORT.................................................................................................................... 8-19

8.5.1 SMBIOS.......................................................................................................................8-20

8.6 POWER MANAGEMENT FUNCTIONS ............................................................................8-21

8.6.1 INDEPENDENT PM SUPPORT ..................................................................................8-21

8.6.2 ACPI SUPPORT...........................................................................................................8-21

8.6.3 APM SUPPORT........................................................................................................... 8-22

8.7 USB LEGACY SUPPORT................................................................................................... 8-24

8.8 BIOS UPGRADING.............................................................................................................8-24

APPENDIX A ERROR MESSAGES AND CODES...............................................................................

A.1 INTRODUCTION.................................................................................................................A-1

A.2 POWER-ON MESSAGES..................................................................................................... A-1

A.3 BEEP/KEYBOARD LED CODES........................................................................................ A-1

A.4 POWER-ON SELF TEST (POST) MESSAGES ....................................................................A-2

A.5 PROCESSOR ERROR MESSAGES (1XX-XX) ...................................................................... A-3

A.6 MEMORY ERROR MESSAGES (2XX-XX)........................................................................... A-4

A.7 KEYBOARD ERROR MESSAGES (30X-XX) ....................................................................... A-4

A.8 PRINTER ERROR MESSAGES (4XX-XX) ............................................................................ A-5

A.9 VIDEO (GRAPHICS) ERROR MESSAGES (5XX-XX) .......................................................... A-5

A.10 DISKETTE DRIVE ERROR MESSAGES (6XX-XX)......................................................... A-6

A.11 SERIAL INTERFACE ERROR MESSAGES (11XX-XX)................................................... A-6

A.12 MODEM COMMUNICATIONS ERROR MESSAGES (12XX-XX).................................... A-7

A.13 HARD DRIVE ERROR MESSAGES (17XX-XX)............................................................... A-8

A.14 HARD DRIVE ERROR MESSAGES (19XX-XX)............................................................... A-9

A.15 VIDEO (GRAPHICS) ERROR MESSAGES (24XX-XX).................................................... A-9

A.16 AUDIO ERROR MESSAGES (3206-XX).........................................................................A-10

A.17 NETWORK INTERFACE ERROR MESSAGES (60XX-XX) ........................................... A-10

A.18 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 CEMM PRIVILEDGED OPS ERROR MESSAGES........................................................ A-12

A.21 CEMM EXCEPTION ERROR MESSAGES ................................................................... A-12

APPENDIX B ASCII CHARACTER SET .............................................................................................

B.1 INTRODUCTION..................................................................................................................B-1