SYSTEM BIOS

8.4.1 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:

Table 8-3

System ID Numbers

 

 

Subsystem

System (Form Factor)

System ID

Device ID

 

 

 

USDT

3033h

3036h

 

 

 

SFF

3031h

3034h

 

 

 

CMT:

3032h

3035h

NOTE: For all systems, BIOS ROM Family = 786G1, PnP ID = CPQ0968, and Subsystem vendor ID = 103Ch.

The ROM family and version numbers can be verified with the Setup utility or the System Insight Manager or Diagnostics applications.

8.4.2 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.

 

8-6

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