{ Does anyone out there know how to set the Software Turbo Speed on Mother boards without hitting the Turbo Switch or the <-> key to slow the system and or Speed it up again? Thanks... } Uses Dos; Procedure SetSpeed(Turbo : Boolean); Var Regs : Registers; OldMem : Byte; begin {OldMem := Mem[$40 : $17];} If Turbo then Regs.AL := 78 else Regs.AL := 74; {Mem[$40 : $17] := 140;} Regs.AH := $4F; Intr($15, Regs); {Mem[$40 : $17] := OldMem;} end; begin SetSpeed(False); end.