Compaq EN Series Technical Reference Manual page 183

CX Function
0000h PCI 2.1 Mode (Enabled)
0001h Erase Eaze Keyboard (off)
0002h Comm/IR Port Designation (Comm port)
0003h No Rejection of SETs By PnP (reject SETs)
0004h PCI VGA Snoop (snoop disabled)
0005h PCI Bus Mastering BIOS Support (enabled)
0006h Auto Prompt for Auto Setup (prompt for F1, F2, F10)
0007h Mode 2 Configuration Support (enabled)
0008h Secondary Hard Drive Controller Enabled (enabled)
0009h Secondary Hard Drive Controller IRQ (IRQ15)
000Ah Custom Drive Type #1
000Bh Custom Drive Type #2
000Ch Custom Drive Type #3
000Dh Custom Drive Type #4
000Eh POST Verbose/Terse or "Silent Boot" Mode (Terse)
000Fh Drive Translation Mode (translate)
0010h Mfg. Process Number Bytes
0011h Administrator Password
0012h Power-On Password
0013h Ownership Tag
0014h Warm Boot Password Mode (disabled)
0015h Hood Lock (enabled)
0016h Hood Removal (disabled)
0017h USB Security (disabled)
0018h Configurable Power Supply (legacy mode)
0019h QuickBoot Mode (full boot always)
001A-001Ch Onboard NIC (1A)/SCSI (1B)/Pri. IDE (1C) Enables
001Dh Ultra SCSI Mode
001E, 001Fh QuickLock/QuickBlank Enables
0020, 0021h Serial Port 1/Port 2 Security
0022h Parallel Port Security
0023, 0024h Diskette Drive Bootability/Writeability
0025h Asset Tag
0026h Back-to-Back I/O Delay
0027h CMOS /10h-2Fh Backup
0028h QuickLock after Standby Enable
0029-002Ch Audio Enable/IRQ/DMA/Address
002Dh ECP DMA Configuration
002E, 002Fh Serial Port 1 Base I/O Address/Interrupt
0030, 0031h Serial Port 2 Base I/O Address/Interrupt
0032h Ultra DMA-33 Enable
0033h Network Server Mode Enable
0034h CIA BOM No. Bytes
0035h Copy Standard CMOS to Backup Location
0036h AGP Monochrome Adapter Search Enable
0037h APM Fan Throttle
0038h Manufacturing Diags Mode
0039h RIPL ROM Boot Mode
003Ah Exit Clean Boot Screen
003B-003Dh Ethernet Speed/Mode/Connector Type
003Eh ACPI Enable
003Fh S/W BOM Serial Number of Bytes
0040h Select ECP Mode
NOTE:
For full bit definitions refer to the Compaq BIOS Technical Reference Guide .
[1] Determined at runtime.
Compaq Deskpro EN Series of Personal Computers
Net PC and Small Form Factor Models
First Edition - June 1998
Technical Reference Guide
Default
Value
1b
11b
0b
0b
0b
1b
00b
1b
1b
11b
40 bits, all 0s
40 bits, all 0s
40 bits, all 0s
40 bits, all 0s
1b
0b
30 bits, [1]
72 bits, [1]
32 bits, [1]
640 bits, [1]
0b
0b
00b
1b
1b
11111b
1b/1b/1b
1b
0b/0b
1b/1b
1b
0b/0b
[1]
00b
[1]
0b
1b/01b/10b/00b
011b
3Fh/00b
1Fh/00b
1111b
0b
[1]
[1]
1b
1b
0b
0b
[1]
000b/00b/001b
1b
[1]
1b
8-17