Need unlocked BIOS for GPU upgrade.

::EDIT::
Solution, make sure your Current Bios is at Default settings before flashing to the unlocked A12.
::EDIT::


I recently bought a nVidia GTX 780m and plan to swap it out with my current AMD Radeon HD 6990M.

And one of the first things I need to do to get it installed is Flash my BIOS to an unlocked version of A12.

I tried using this one: M17x R3 BIOS A12 - unlocked & 'SATA fix' - Downloads - Tech|Inferno Forums

And was immediately given the 8 beep no post issue, I was forced to blind flash it back to the stock Dell A12 BIOS to unbrick my system.

Does anyone know of a working version of unlocked A12 anywhere?

 

Odd indeed, hopefully someone can help. I have an m17x r3 and used that very bios from that site to unlock mine to be able to preselect graphics between integrated/discrete.

Guess I can count myself fortunate i didn't get that issue.

 

Hi, that is strange, I used the same one on my R3 without a problem .

Have you checked the iGPU is working by taking out the dGPU? Do you have a 120hz model?

 

Yep, that is strange, I'm using the very same BIOS, but your link doesn't work, so maybe you're using the wrong one. This is the one I used & it worked for me:

[M17x R3] - BIOS A12 'unlocked' & 'SATA tweak'

 

Thanks for the assist guys, after messing with it I found it's some sort of issue with putting in the unlocked BIOS after having disabled a few things in the Stock A12 BIOS.

I reused the same unlocked BIOS with the stock A12 set to Default settings and everything worked perfectly, already have my 780m installed and running well.

 

Cool. good to know