I'm using the GA-EP43-UD3L rev 1.0 with a x5450(I put a sticker on it) 4gb of RAM and a 7950. On windows 7
I want to update the bios on it so I download it from http://www.gigabyte.com/products/product-page.aspx?pid=2993#bios I run the exe, then try to run what came out of it. When I try to install it(this is through windows) it says "This version of this file is not compatible with the version of windows you're running. Check your computer's system information to see whether you need an x86 or x64 version of the program and then contact the software publisher. Any help?
They always say with a BIOS if your pc is doing everything you want it to do you don't update it. With that said why are you updating your BIOS?
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It is generally recommended to not update bios unless it is absolutely necessary(such as cpu support).
Also never update the bios through windows, you have a much higher chance to brick the board.
Look to see if your motherboard supports Qflash, and if it does follow the directions here.
http://www.gigabyte.com/webpage/20/images/utiltiy_qflash_uefi.pdf
I'm doing it because my 7950, when under a fair bit of stress will cause the drivers to crash. It does it in my very little modded skyrim, in Arma 3, overwatch you name it. And this was something that could fix it
If for some reason you brick the board a new Bios chip is usually around 20 bucks and is easy to install.
Also the downloads have 32 bit and 64 bit win 7 choices. On older boards you would make a bootable DVD and reboot it but more modern boards usually have a utility. I think yours is @BIOS.
Doesn't most Gigabyte boards feature a dual bios system?
The @BIOS is the utility you need and can be found here...
http://www.gigabyte.com/products/product-page.aspx?pid=2993#utility
The BIOS update and the GPU crashing the drivers are too completly unrelated things, in my opinion. If the card has always worked fine before a certain moment or has been going downhill for a while surely that's not related to the BIOS. Do a stability test for your GPU (Valley, Furmark or any other test you'd like to do) and see what happens. Check all the parameters you can and see if everything's good. Than swap drivers, test the card in another system, change PCI slot and so on and so forth. BIOS updates are risky and can introduce more problems if not done correctly.