unstable gpu OC

[Doses13]

no matter how much i overclock my gpu is is always unstable. I even tried uping the voltage to +50% and it still did nothing. It is a gigabyte g1 gaming 1070 so it never goes over 70c with the OCs but it always crashes after a few seconds. how can i make it stable?

 

[bjornl]

Too high a voltage can increase crashing.
You need to start over and be very patient.

Get the following free software
HWMonitor
Heaven Benchmark 4.0
MSI afterburner

Change Heaven to be windowed mode. Turn most everything on since you want to stress the GPU.
Start HWMonitor, scroll to where you can see the GPU temps
Start Afterburner
Start Heaven
use alt-tab to bring HWmon and Afterburner to the front.

Now gradually increase the RAM OC in very small increments of 10 or so.
Once you either see artifacts in the benchmark program or the program crashs you have gone too far. Back it off a little bit.

Now gradually increase the core OC in very small increments 10 or so (do not adjust the core voltage).
Once you either see artifacts in the benchmark program or the program crashs you have gone too far. Back it off a little bit or at this first sign, you can try to marginally increase the GPU voltage in increments of 5 until the problems go away.

While doing this keep a CLOSE eye on the GPU temps. If they start climbing up too high, your card will not OC to the level you are trying. Consider improving case cooling or replacing your GPU cooler.

Bottom line is there is no guarantee of a overclock. No two cards are the same.

 

[rgd1101]

and what the make and model of the psu?

 

[Doses13]

evga supernova 750 g2 80+ gold