Compaq dc7100 HP Compaq dc71xx and dx61xx Series Business Desktop Computers Te - Page 165

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: Table 8-5 System ID System (Form Factor) System ID USDT 0980h SFF/ ST: DDR DDR2 097Ch 09D0h uT: DDR DDR2 0984h 09CCh CMT: DDR DDR2 0968h 09C8h 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 Technical Reference Guide 361834-002 8-17