Gaming Build no POST losing power with I7 6 core proccessor and Asus Sabertooth X79

awraithisborn

Honorable
Dec 17, 2013
1
0
10,510
I just started a new gaming build, but when the time came to start up, the board fires up and the entire system loses power completely and then turns back on, the cpu led light stays red and i do not get video. I tried just running the computer with one stick of ram, the cpu, cooler, and video card with the same issue. Once without the video card and every other configuration i could think of. The interesting thing is that when i unplug the ATX 8 pin EATX12V it does not turn off and back on, but I still have a cpu led light on with no video. ANY IDEAS?

Asus Sabertooth X79 A455-3156 motherboard
Corsair HX760 Power Supply
Corsair Vengeance CMZ16GX3M4A1600C9 4x 4GB
Thermaltake clp05634 CPU Cooler]
Intel Core I7-4930K 6 Core Cpu
MSI N670GTX Ge Force GTX670 2GB Video Card

awraithisborn@yahoo.com
 
I recently built a new computer with the Sabertooth X79 Motherboard and it came shipped with a Bios v1. This wasn't compatible with the latest Intel i7 I had installed and so there was no video output, it wouldn't boot up except.... there was one single red led lit up on the board.

I assumed the worst but I downloaded the latest CAP BIOS from the Asus website (don't get confused with the ROM v CAP info) ... copied the file to a formatted USB stick and renamed the file SABERX79.CAP

If you go here:
http://www.asus.com/us/Motherboards/SABERTOOTH_X79/#support

Click "Drivers & Tools"

I chose Windows 7 (x64)

You will see an option for "BIOS" and if you click the (-) next to that, it will bring up a long list of BIOS versions. I downloaded the latest (4608) and extracted it to a USB.

I then renamed "SABERTOOTH-X79-ASUS-4608.CAP" to "SABERX79.CAP"

With the computer turned off (but plugged in) I plugged the USB disk into the special USB update plug at the back of the computer (highlighted white) and held the button next to it for 3 seconds.

The light started flashing and I waited for it to finish. Done. Bios was updated and the computer turned on.

It is important to let it finish updating and not to interrupt it until it is finished. Asus have manuals on their website on how to do this.

I only write this because the mainboard had the single led light, but there was no hardware fault. It was purely an out of date BIOS.