Nvidia BIOS mod Pros lip lai....

[allhomme]

I need help with nvidia BIOs mod and OC.

I was OCing my GTX770 and realise in GPU-z that the GPU throttles when the TDP exceeds 126%. I have already increased the max power to 166% but no matter what I do, it still throttles @ 126%.

Is this portion hard coded into the VRM controller or there are more settings I need to change in the BIOs power table?

I can overvolt the GPU all the way to 1.65V but the TDP is restricting me. Currently I'm clocking it at a conservative 1.212V @ 1306.5MHz.

 

[tamjinhang]

tried this yet? GTX 770 voltage unlock

 

[allhomme]

tried this yet? GTX 770 voltage unlock

Mines already unlocked....

 

[tamjinhang]

Hmm, then how's the temps at 126% tdp level?

 

[allhomme]

Hmm, then how's the temps at 126% tdp level?

Low 60s. no air con.

I'm underwater.

I have tried 1.4V and it reaches low 70s but the restriction is on the TDP

 

[tamjinhang]

Found a thread on tdp limit break. Try this?

MSI 770 GTX Lightning BIOS Tweaking guide (or how I unlocked my TDP limit)

 

[allhomme]

Found a thread on tdp limit break. Try this?

MSI 770 GTX Lightning BIOS Tweaking guide (or how I unlocked my TDP limit)

I have already change it to 166%..... Now i have manage to get to 1306Mhz I think I'll staty there for some time... dont later fry my pump. My base TDP is 400W liao and max is 450W.....

Coolant temps are hitting 60deg when at 1.4v

 

[tamjinhang]

That's some hardcore voltage u're pumping. I wouldn't dare try that. Lol

 

[allhomme]

That's some hardcore voltage u're pumping. I wouldn't dare try that. Lol

thats why I down clock back to 12125mv and 1306MHz. at these clocks, any increase to vram clock will be unstable.