Compaq Deskpro 4000N - Page 7

Technical Reference Guide
Compaq Deskpro 4000N and 4000S Personal Computers
First Edition – September 1997
v
5.6 KEYBOARD/POINTING DEVICE INTERFACE ............................................................... 5-28
5.6.1 KEYBOARD INTERFACE OPERATION ...................................................................5-28
5.6.2 POINTING DEVICE INTERFACE OPERATION .......................................................5-30
5.6.3 KEYBOARD/POINTING DEVICE INTERFACE PROGRAMMING ......................... 5-30
5.6.4 KEYBOARD/POINTING DEVICE INTERFACE CONNECTOR................................ 5-34
5.7 ETHERNET INTERFACE...................................................................................................5-35
5.7.1 NIC CONFIGURATION/CONTROL ........................................................................... 5-36
5.7.2 NIC CONNECTORS.................................................................................................... 5-36
5.8 UNIVERSAL SERIAL BUS INTERFACE........................................................................... 5-37
5.8.1 USB CONFIGURATION.............................................................................................. 5-37
5.8.2 USB CONTROL........................................................................................................... 5-38
5.8.3 USB CONNECTOR ..................................................................................................... 5-38
CHAPTER 6 GRAPHICS SUBSYSTEM...............................................................................................
6.1 INTRODUCTION.................................................................................................................. 6-1
6.2 SUBSYSTEM DESCRIPTION .............................................................................................. 6-2
6.2.1 S3 TRIO64V2/GX GRAPHICS CONTROLLER ...........................................................6-2
6.2.2 S3 TRIO64V2/GX GRAPHICS CONFIGURATIONS ................................................... 6-3
6.2.3 S3 TRIO64V2/GX GRAPHICS SUBSYSTEM PROGRAMMING.................................6-4
6.2.4 MONITOR POWER CONTROL....................................................................................6-5
6.2.5 CONNECTORS ............................................................................................................. 6-6
CHAPTER 7 POWER SUPPLY AND DISTRIBUTION.......................................................................
7.1 INTRODUCTION.................................................................................................................. 7-1
7.2 POWER SUPPLY ASSEMBLY/CONTROL.......................................................................... 7-1
7.2.1 POWER SUPPLY ASSEMBLY......................................................................................7-2
7.2.2 POWER CONTROL....................................................................................................... 7-3
7.3 POWER DISTRIBUTION...................................................................................................... 7-4
7.3.1 3.5/5/12 VDC DISTRIBUTION......................................................................................7-4
7.3.2 LOW VOLTAGE DISTRIBUTION................................................................................ 7-5
7.4 SIGNAL DISTRIBUTION..................................................................................................... 7-6
CHAPTER 8 BIOS ROM .......................................................................................................................
8.1 INTRODUCTION.................................................................................................................. 8-1
8.2 BOOT FUNCTIONS.............................................................................................................. 8-2
8.2.1 BOOT BLOCK............................................................................................................... 8-2
8.2.2 QUICKBOOT.................................................................................................................8-2
8.2.3 SILENTBOOT ............................................................................................................... 8-2
8.3 ACCESSING CONFIGURATION MEMORY....................................................................... 8-3
8.3.1 ACCESSING CMOS...................................................................................................... 8-3
8.3.2 SETTING DEFAULT PARAMETERS.......................................................................... 8-3
8.3.3 ACCESSING CMOS FEATURE BITS........................................................................... 8-4