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Unable to access BIOS with second graphics card installed.

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  • computer trouble
  • Motherboards
Last response: in Motherboards
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January 5, 2014 2:49:38 PM

Hey, thanks for stopping by to see if you can help me!

System:

* CPU: Intel i7 3770k @4.4GHz

* GPU1: MSI GeForce GTX 670 Power Edition SLI Enabled

* GPU2: MSI GeForce GTX 670 Power Edition SLI Enabled.

* PSU: Corsair HX 750 80 + Gold

* Mobo: ASRock z77 Extreme 4

* RAM: Corsair Vengeance 16GB (2x8GB) 1600Mhz

* Storage1: OCZ Vertex 4 256GB SSD

* Storage2: Seagate Barracuda 2TB

Symptoms:
1. Computer boots to bios and windows normally when just one graphics card is installed.
2. When both graphics cards are installed, but the sli bridge isn't attached, it fails to boot and the motherboard displays "A6." It never makes it to windows.
3. When both graphics cards are installed, and the SLI bridge is attached, it boots to windows, but I am unable to get into the BIOS - It displays a blank screen until windows pops up. Once I'm in windows, everything works normally.
4. The CMOS button stays on and the computer wont do anything when I hit it with both graphics cards installed.
5. The CMOS button works normally when only one graphics card is installed.

I'm really at a loss of what to do here. It may be worth mentioning that I have to underclock the second GPU by 40MHz to prevent crashes under load.

I'll be hanging around to try and provide you guys with as much information as possible.

More about : unable access bios graphics card installed

a b V Motherboard
January 5, 2014 3:22:25 PM

Probably the most obvious question is what version BIOS do you have installed?
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January 5, 2014 4:16:03 PM

jnkweaver said:
Probably the most obvious question is what version BIOS do you have installed?


I'm on the latest version, 2.9.

I was having troubles before I installed the latest BIOS, though.
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Best solution

a b V Motherboard
January 5, 2014 4:17:49 PM

I would RMA the board. Newegg reviews haven't been very good lately on that board.
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