Question : PS2/USB Keyboard Not Working In Bios

Replace Power Supply because computer was not booting.
Now Computer is booting but doesn't go pass bios screen and no ps2/usb keyboard is working in the bios.
Change RAM, Change CMOS battery,  Remove HD/DVD-ROM Cables and still no luck in getting both keyboards to work.

Do any one have any suggestions?

Answer : PS2/USB Keyboard Not Working In Bios

if a ps/2 nor a usb keyboartd works in the bios, and everything is decoupled, i also suspect a bad mobo; probably the keyboard controller is bad, or another part is locking up the system.
it "can" be the cpu -  you can test with another one if you have a compatible one around