HP Vectra Technical Reference Manual page 386

C.6 CMOS Fixed Disc Type (CMOS Address 12H)
CMOS_FIXED_DISC_TYPE, (CMOS Address 12H), is reserved for the hard disc.
C.7 Equipment Byte (CMOS Address 14H)
This byte is used to initialize STD-BIOS RAM location
40:001 OH.
This is the value returned by
the STD-BIOS interrupt INT 11 (get current equipment). The details of this byte are shown in table
C.9.
Table C.9
CMOS_EQ_BYTE (CMOS Address 14H)
Bit Value
7-6 0
1
5-4 1
2
3
3-2
1
o
Definition
One drive installed
Two drives installed
Primary display is 40 column color
Primary display is 80 column color
Primary display is 80 column monochrome
Reserved
80287 installed
At least one flexible disc installed
C.8 System Base RAM Size (CMOS Address
,. 15H-16H)
This value represents the amount of base (DOS addressable) memory installed in the system
minus the amount of RAM used by the EX-BIOS data area. Three base memory configurations
are valid:
CMOS Memory Layout and Real-Time Clock 377