## Physical Device Driver Reference

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### POWER_GETPOWERINFO (62h) - BIOSVersion

BIOSVersion BIOSVersion is a complex field composed of the following BYTE values:

The high BYTE contains the Advanced Power Management BIOS major revision level value.

The low BYTE contains the Advanced Power Management BIOS minor revision level value.

A combined WORD value of 0 indicates that no Advanced Power Management BIOS support is active or available. For the meaning of a specific version number, consult the appropriate BIOS technical reference materials for the system unit.