Asus uefi bios simulator
Note: Disable this item could skip the detection of the ATA100/133 controller. And system will not load its BIOS. If you have any bootable device installed on onboard ATA device and want to boot with it, please leave the option to <AUTO>. Select Disabled to backward compatible with BIOS before revision 1007 and VIA 4-IN-1 driver v4.29.