Category: vendor-specific BIOS extensions Flags: Undocumented function
INT 1F - C&T "SuperState" BIOS - GET/SET CPU SPEED
AH = FBh
BL = function
00h get CPU speed
Return: AL = current CPU speed (00h = fast, 01h = slow)
01h set CPU speed
AL = new CPU speed (00h = fast, 01h = slow)
SeeAlso: AH=FCh/BL=00h