Technical Reference Guide 361834-001 8-17
BIOS ROM
8.5.1 System ID and ROM Type
Diagnostic applications can use the INT 15, AX=E800h BIOS function to identify the type of
system. This function will return the system ID in the BX register. systems have the following
IDs and ROM family types:
NOTE: All systems use BIOS ROM Family 786C1 and PnP ID CPQ0968.
The ROM family and version numbers can be verified with the Setup utility or the Compaq
Insight Manager or Diagnostics applications.
8.5.2 Temperature Status
The BIOS includes a function (INT15, AX=E816h) to retrieve the status of a system's interior
temperature. This function allows an application to check whether the temperature situation is at
a Normal, Caution, or Critical condition.
8.5.3 Drive Fault Prediction
The BIOS directly supports Drive Fault Prediction for IDE (ATA)-type hard drives. This feature
is provided through two Client Management BIOS calls. Function INT 15, AX=E817h is used to
retrieve a 512-byte block of drive attribute data while the INT 15, AX=E81Bh is used to retrieve
the drive's warranty threshold data. If data is returned indicating possible failure then the
following message is displayed:
1720-SMART Hard Drive detects imminent failure
Table 8-5
System ID
System (Form Factor) System ID
USDT 0980h
SFF/ ST: 097Ch
uT: 0984h
CMT: 0968h
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