Compaq 850 - page 12

Technical Reference Guide
Compaq Deskpro EXS and Workstation 300 Personal Computers
Featuring the Intel Pentium 4 Processor
First Edition –- December 2000
vi
7.7 POWER MANAGEMENT FUNCTIONS................................................................................ 7-17
7.7.1 INDEPENDENT PM SUPPORT...................................................................................... 7-17
7.7.2 ACPI SUPPORT................................................................................................................ 7-19
7.7.3 APM 1.2 SUPPORT ..........................................................................................................7-19
7.8 USB LEGACY SUPPORT........................................................................................................7-23
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 (1XX-XX)................................................................................ A-3
A.5 MEMORY ERROR MESSAGES (2XX-XX) .............................................................................. A-4
A.6 KEYBOARD ERROR MESSAGES (30X-XX).......................................................................... A-4
A.7 PRINTER ERROR MESSAGES (4XX-XX)................................................................................A-5
A.8 VIDEO (GRAPHICS) ERROR MESSAGES (5XX-XX).............................................................A-5
A.9 DISKETTE DRIVE ERROR MESSAGES (6XX-XX)................................................................A-6
A.10 SERIAL INTERFACE ERROR MESSAGES (11XX-XX).......................................................... A-6
A.11 MODEM COMMUNICATIONS ERROR MESSAGES (12XX-XX)......................................... A-7
A.12 SYSTEM STATUS ERROR MESSAGES (16XX-XX) .............................................................. A-8
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 DVD/CD-ROM ERROR MESSAGES (33XX-XX)...................................................................A-10
A.18 NETWORK INTERFACE ERROR MESSAGES (60XX-XX) ................................................. A-10
A.19 SCSI INTERFACE ERROR MESSAGES (65XX-XX, 66XX-XX, 67XX-XX)............................ A-11
A.20 POINTING DEVICE INTERFACE ERROR MESSAGES (8601-XX)....................................A-11
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