Product Identification - HP Vectra XW Technical Reference Manual

Hardware and bios
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4 HP BIOS
BIOS Addresses

Product Identification

The following product identification strings are located in the 64 KB BIOS
ROM data area.
Location
Size
0F000:00F2h
byte
0F000:00F3h
byte
0F000:00F4h
byte
0F000:00F5h
byte
0F000:00F8h
word
0F000:00FAh
byte
0F000:00FCh
word
0F000:00FEh
byte
0F000:00FFh
byte
0F000:0102h
word
BIOS Version Number
0F000:00FCh = BIOS version number
Length = two bytes
Encoding is as follows:
ppss
where pp = Primary version number and ss = Secondary version number
All BIOS releases have GG as the prefix and 06 as the primary version
number.
For example; BIOS release GG.06.01 would be expressed as:
0601
Note that if you use DEBUG to look at the bytes, the numbers will be
reversed (0106).
36
Contents
Description
4Dh
System number for HP Vectra XW and XU 6/xxx
14h
Extended identification byte (14h = Pentium Pro)
speed (in MHz)
High processor clock frequency
08h
Low processor clock frequency
4646h
HP Vectra computer ID (ASCII "FF")
FFh
Product Identification
ppssh
BIOS version number
(pp = primary number, ss = secondary number)
yyh
ROM release year (since 1960)
nnh
Week of the year stored in BCD
4850h
Computer ID (ASCII "HP")

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