Can I flash the BIOS on my 290x for better overclocking?

[Calneon]

I bought a 290x when it first was released, a basic stock one (manufacturer was HIS IIRC). It overclocks very poorly, anything over ~1075 core clock and I get crashes in certain games (Dota 2, Witcher 3).

I heard that the BIOS can be a determining factor for overclocking, but I've never done it before. What would I flash to, how much could it improve overclocking, and what would be the best way to do it? Thanks!

 

[Phixsator]

So many things determine the OC abilities.. Heat dissipation, ASIC quality, BIOS, PSU and drivers just to name a few.. First and foremost how warm does it get with your current stable OC?

 

[Calneon]

So many things determine the OC abilities.. Heat dissipation, ASIC quality, BIOS, PSU and drivers just to name a few.. First and foremost how warm does it get with your current stable OC?

It's under water, no more than ~65 when running TW3.

 

[passey89]

Debating this for my 290xcrossfires the asus one is meant to be best isnt it?

 

[vfdb]

I'm in the same boat, as my Tri XR9 290 can't go above 1075 either. Tried all sorts of bioses and nothing helped. It's just the luck of the draw. I flashed the Trix OC bios which makes it run at 1030/1400 and just said sod it i'll leave it there.