Filter
Top Products
Chapter 8 BIOS ROM
Compaq Deskpro 4000N and 4000S Personal Computers
First Edition - September 1997
8-8
Timeout Counter Record (Video Screensave), SIT Record 03h
Byte [1] Function
Default
Value
0Ah Record ID for Video Screensave Timeout 03h
0Bh No. of Data Bytes in Record 09h
0Ch First Value 0
0Dh 5
0Eh 10
0Fh 15
10h 20
11h 30
12h 40
13h 50
14H Last Value 60
NOTE:
[1] Offset from byte 00h of timeout record 02h.
Timeout Counter Record (Hard Drive), SIT Record 04h
Byte [1] Function
Default
Value
15h Record ID for Hard Drive Timeout 04h
16h No. of Data Bytes in Record 06h
17h First Value 0
18h 10
19h 15
1Ah 20
1Bh 30
1Ch Last Value 60
NOTE:
[1] Offset from byte 00h of timeout record 02h.
Security Record, SIT Record 05h
Byte Function
Default
Value
00h Record ID 05h
01h No. of Data Bytes in Record 04h
02h NVRAM/HD Lock, QuickLock/QuickBlank, FD Boot, PWR Pwd 7Fh
03h Virus Detect, Serial/Parallel Cntrl., FD Drive Cntl., Stby Cntrl. 1Eh
04h Diskette Drive Fnct., Password Functions 7Ah
05h Password Locking, Ownership Tag Length [1]
NOTE:
[1] Determined by system at runtime.
Processor/Memory/Cache Record, SIT Record 06h
Byte Function
Default
Value
00h Record ID 06h
01h No. of Data Bytes in Record 0Eh
02h, 03h Installed Microprocessor Speed [1]
04h Cache Configuration 07h
05h L2 Cache Size 20h
06h L2 Cache Speed 00h
07h Total Memory Amount Adjustment 06h
08h, 09h Total Soldered Memory 0000h
0Ah, 0Bh Maximum Memory Installable 0100h
0Ch, 0Dh Reserved 0000h
0Eh Processor Designer 00h
0Fh System Cache Error Correction 01h
NOTE: [1] Determined by system at runtime.