Int 15 Fn 5380  - Advanced Power Management V1.1 - Oem Apm Installation C  [p]

   AX = 5380h
   BH = 7Fh

Return: CF clear if successful
       BX = OEM identifier
       all other registers OEM-defined
       ---Intel SL Enhanced Option BIOS---
       BX = 534Ch ('SL')
       CL = 4Fh ('O')
       AL = version (10h = 1.0)
       ---HP APM BIOS---
       BX = 4850h ('HP')
       CX = version (0001h)
   CF set on error
       AH = error code (03h) (see #0399)

See Also: AX=5380h/BH=00h