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Overclocking 680s

Start with the power target set to full. Then try a straight 100 on the GPU clock offset and 250 on the mem.

Run the Heaven 3.0 bench, if all stable go up in 10's on the GPU offset. When that gets to a CTD, back off slightly and then push the mem up (go for increments of 20 on this untill you see artifacts on the screen and then back off that). You can prolly push the mem to something like 450 once you have found your GPU offset max and go from there.
 
gregster said:
Start with the power target set to full. Then try a straight 100 on the GPU clock offset and 250 on the mem.

Run the Heaven 3.0 bench, if all stable go up in 10's on the GPU offset. When that gets to a CTD, back off slightly and then push the mem up (go for increments of 20 on this untill you see artifacts on the screen and then back off that). You can prolly push the mem to something like 450 once you have found your GPU offset max and go from there.
Click to expand...


What's artifacts? Heaven settings

Tessellation: Normal
Anisotropy: 16x
AA 2x
And full screen ticked
Are these ok?
 
Last edited:
Running heaven with the
132
+100
+250
The top card reads
1237
1175
The bottom card reads
1005
1000
Why is that? Is that meant to be doing that?

I'm now running
Evga oc scanner x benchmark
Top card reads
1237
1175
Bottom card reads
1227
1162
What's going on????
 
Last edited:
fantasticCG said:
What's artifacts? Heaven settings

Tessellation: Normal
Anisotropy: 16x
AA 2x
And full screen ticked
Are these ok?
Click to expand...

Artifacts are strange shapes or lines or things that normally should not be there.

As to settings

Tessellation: Extreme
Anisotropy: 16x
AA 8x
And full screen ticked

The above is what I use to stress a system
 
fantasticCG said:
Running heaven with the
132
+100
+250
The top card reads
1237
1175
The bottom card reads
1005
1000
Why is that? Is that meant to be doing that?

I'm now running
Evga oc scanner x benchmark
Top card reads
1237
1175
Bottom card reads
1227
1162
What's going on????
Click to expand...

Have you got sync turned on?
 
Ran heaven with the settings kaapstad recommend.
Gpu1 1238 and fluctuated between 39c and 42c
Gpu 2 1228 and fluctuated between 37c and 39c

With
Fps 92.8
Scores 2338
Min fps 15.0
Max fps 232.2

That's with the oc settings
PT 132%
GPU CO +100
MEM CO +250
 
Last edited:
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