Since the problem apparently started when you upgraded the BIOS, why not go to the Asus web site and download an earlier version of the BIOS and flash it with that? Why did you flash the BIOS in the first place? Cardinal rule with computers is "if it ain't broke, don't fix it". This is particularly true with drivers and the BIOS.
I just got done building my new system. It has an ASUS SABERTOOTH X79 Motherboard, intel i7-2600 CPU, 16GB Corsair Vengence RAM, ASUS GTX 570 Graphics Card, intel ethernet card, creative extremegamer, and a 2TB WD Black Caviar, 240GB Corsair N-Force SSD, and a 60GB Crucial M4 SSD.
I built the system and everything was running beautifully. Then before finishing up everything on the system I go to update the BIOS to the mobo. After updating BIOS the computer still turns on and starts to load windows, but then just crashes. I tried windows repair same thing, I've tried using Hirens bootCD and off a USB, and the exact same thing (windows starts to load then crashes). I've even taken all of the hard drives out that had any data on them, cleared them, put them back in, and the same thing. I try and run windows 7 install and windows installer never comes up, instead it also tries to load windows and just fails. After clearing the N-Force that use to have win7 on it I tried installing Ubunto linux onto it from another computer, and I still have the exact same issue. Only time it wont try to load windows if if there are no drives attached at all. So wheter I am booting from a CD, clean HDD's, or linux, all it does it try to load windows 7 then crash.
I have taken the battery out and cleared CMOS. I have even taken every ram chip out and touched each metal connector with a paper clip to discharge them. I will be calling up ASUS tomorrow, but in the mean time I was curious if anyone has every encountered a problem like this.
Thanks for the help,