Inconsistent Overclock with FE 1070.

[Army165]

Wondering if this is the limitation of the single power plug and lack of extra power phases that the FE 1070 comes with. I eliminated temps after installing an EVGA Hybrid cooler on it, so its not that(Temps never go past 40C). I had an MSI Gaming X 1060 before it and it OC'd just fine. When the GPU was at 100% usage, clocks were stable. That is not the case with the 1070, clocks bounce up and down like its being throttled but I don't know where or how. I put the voltage at 100%, +200 on the core clock, 0 on mem clock and ran the cooler at 50%. Furmark was making it bounce from 1734mhz to 1721mhz. This also happens during games, BF4, Ark and Paragon to name a few. 

 

The second picture shows stability earlier but I was running a less intense bench on accident. 

 

Any clues on how to make this stable would be great, thanks!

[Imakuni]

Did you increase the power target? If you leave it at 100%, it'll obviously throttle.

 

Also, I don't recommend Furmark as a test. It's designed to stress the cooler, not the actual GPU. It's rather easy to have a "stable" OC on furmark to crash as soon as you fire a game. I recommend Heaven Benchmark instead.

[Army165]

I did increase my power target to 112%. I didn't at first, it wasn't showing, had to look up how to get it to show up. Once there, I increased it, same issues. I used Heaven this time around, GPU usage was all over the place and it eventually froze up. I dropped the clock OC to +175 for the heaven bench.