GTX 970 Overclock issue

[Zanow]

Hi everybody,

So today I decided to mod my GPU bios (just raised power limit a little bit), the reason why I did this is because the max power limit I could set with MSI Afterburner was 110%, but every few minutes while benchmarking or playing, the GPU would throttle and lower frequencies because it reached like 113-115% of the Power Limit, so I raised it up to 125% in the bios, using Nvflash and Maxwell Tweaker.

Now here comes the problem: In MSI Afterburner I can now raise the power limit up to 125% (which shows that the new bios has been installed on the GPU) but, if I reach more than 110%, the GPU still throttles, even with 125% Power limit set in MSI AfterBurner... Have I missed something ? 

 

More info on my RIG:

PSU: EVGA 850W

Motherboard: MSI Z97 PC MATE

CPU: Intel Core i5 4690k

GPU: MSI GTX 970 GAMING 4G

 

Thanks by advanced, hope I can figure this out with your help

[Imakuni]

11 minutes ago, Zanow said:

Hi everybody,

So today I decided to mod my GPU bios (just raised power limit a little bit), the reason why I did this is because the max power limit I could set with MSI Afterburner was 110%, but every few minutes while benchmarking or playing, the GPU would throttle and lower frequencies because it reached like 113-115% of the Power Limit, so I raised it up to 125% in the bios, using Nvflash and Maxwell Tweaker.

Now here comes the problem: In MSI Afterburner I can now raise the power limit up to 125% (which shows that the new bios has been installed on the GPU) but, if I reach more than 110%, the GPU still throttles, even with 125% Power limit set in MSI AfterBurner... Have I missed something ? 

 

More info on my RIG:

PSU: EVGA 850W

Motherboard: MSI Z97 PC MATE

CPU: Intel Core i5 4690k

GPU: MSI GTX 970 GAMING 4G

 

Thanks by advanced, hope I can figure this out with your help

That's likely GPU Boost 2.0 being derpy...

 

Since you've modded your Bios, mod it again, but make the clocks fixed to whatever you want, so it's not going to throttle down.

[Zanow]

So I would have to make a permanent OC in the bios ? Or are you talking about the "throttle" clocks ? Plus it seems like something else is making this derpy, the throttle happens only after I've reached 110% of the power limit (which was the actual power limit before I mod the bios) 

[Imakuni]

11 minutes ago, Zanow said:

So I would have to make a permanent OC in the bios ? Or are you talking about the "throttle" clocks ? Plus it seems like something else is making this derpy, the throttle happens only after I've reached 110% of the power limit (which was the actual power limit before I mod the bios) 

I'm assuming you did the mod right and increased not only the total power draw, but the other necessary fields, no?

[Zanow]

Yes, also increased TDP and both PCI-E connectors power