About the only things I could suggest would be to try re-seating your ram & graphics cards, and try booting in barebones configuration. ie disconnect the harddrive/s and optic drives, take out any pci cards. Leave only motherboard, CPU with fan, 1 stick of ram, Graphics, Monitor & keyboard. No usb devices etc. See if it will boot into bios.
If it still blue-screens then you likely have a motherboard fault and replacement would then be my way forward.
Goin' Fishin' (Some day)