if your bios had a bad flash, the foillowing options are open for you :
-if you have a bios recovery, or crash free bios, you can use that - check your manual for it
-if none of the above, your bios chip must be replaced - with anoriginal one
-you can try these :(much cheaper) :
http://bioschips.nlan.org/ bad bios chip
http://www.recoverybios.com/ replace bios
http://www.badflash.com/ " "