I think the next thing to try is to clear cmos on the motherboard. Do you know how to do that burnselk? There should be instructions in the manual for your motherboard.

Normally you turn off the computer, unplug the power supply, remove the computer motherboard battery, then move a jumper. Leave it like that for a minute, then put the jumper back in its original position. Then replace the battery and restart the computer.

But look at your manual for exact instructions and for the location of the cmos jumper. This should put the motherboard back at its normal, default settings in the bios.