I just installed a new motherboard (Pc Chips M848A) in my son's tower. After posting I get the blue screen of death an its says I need to run chkdsk /f. I might have a virus in the boot record. Without the hard drive connected, I still can only get into the BIOS if i clear them, then after going into them, the computer won't POST or I can't get back into the BIOS unless I clear them again. I'm trying to see if I can at least boot rom a cd. Any help would be appreciated.