Technical Reference Guide
Compaq iPAQ Family of Internet Devices
First Edition –- March 2000
vi
CHAPTER 8 BIOS ROM.......................................................................................................................
8.1 INTRODUCTION.................................................................................................................. 8-1
8.2 DESKTOP MANAGEMENT SUPPORT ............................................................................... 8-2
8.2.1 SYSTEM ID...................................................................................................................8-4
8.2.2 SYSTEM INFORMATION TABLE...............................................................................8-4
8.2.3 EDID RETRIEVE..........................................................................................................8-5
8.2.4 DRIVE FAULT PREDICTION.......................................................................................8-5
8.2.5 SYSTEM MAP RETRIEVAL.........................................................................................8-6
8.2.6 FLASH ROM FUNCTIONS...........................................................................................8-7
8.2.7 POWER BUTTON FUNCTIONS...................................................................................8-7
8.2.8 ACCESSING CMOS......................................................................................................8-8
8.2.9 ACCESSING CMOS FEATURE BITS...........................................................................8-8
8.2.10 SECURITY FUNCTIONS............................................................................................ 8-10
8.3 MEMORY DETECTION AND CONFIGURATION............................................................8-11
8.4 PNP SUPPORT.................................................................................................................... 8-12
8.4.1 SMBIOS.......................................................................................................................8-13
8.5 POWER MANAGEMENT FUNCTIONS ............................................................................ 8-14
8.5.1 INDEPENDENT PM SUPPORT.................................................................................. 8-14
8.5.2 ACPI SUPPORT...........................................................................................................8-15
8.5.3 APM 1.2 SUPPORT..................................................................................................... 8-15
8.6 USB LEGACY SUPPORT................................................................................................... 8-17
8.7 BIOS UPGRADING.............................................................................................................8-18
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 PRO CESSOR ERROR MESSAG ES (1XX-XX) ...................................................................... A-3
A.6 MEMORY ERROR MESSAGES (2XX-XX) ........................................................................... A-4
A.7 KEYBOARD ERROR MESSAGES (30X-XX) ....................................................................... A-4
A.8 PRI NTER ERROR MESSAGE S (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 SYSTEM STATUS ERROR MESSAGES (16XX-XX) ........................................................ A-8
A.14 HARD D RIVE ERROR MESSAGE S (17XX-XX)............................................................... A-8
A.15 HARD D RIVE ERROR MESSAGE S (19XX-XX)............................................................... A-9
A.16 VIDEO (GRAPHICS) ERROR MESSAGES (24XX-XX) .................................................... A-9
A.17 AUDIO ERROR MESSAGES (3206-XX).........................................................................A-10
A.18 DVD/CD-ROM ERROR MESSAGES (33XX-XX) ............................................................ A-10
A.19 NETWORK INTERFACE ERROR MESSAGES (60XX-XX) ........................................... A-10
A.20 SCSI INTERFACE ERROR MESSAGES (65XX-XX, 66XX-XX, 67XX-XX) ....................... A-11
A.21 POINTING DEVICE INTERFACE ERROR MESSAGES (8601-XX).............................. A-11
A.22 CEMM PRIVILEDGED OPS ERROR MESSAGES........................................................A-12
A.23 CEMM EXCEPTION ERROR MESSAGES................................................................... A-12