What have I done wrong....

[snips86x]

I've given a shot at overclocking my GPU, MSI GTX 660 TwinFrozr III, and when attempting to benchmark, I get the following error, I was using 3DMark11:

http://i48.tinypic.com/bikh4.png

If the image is larger than 1280 pixels wide then please resize, link only or put in spoiler tags. Thank you.

Works fine on stock.....

I've gone through and dropped the GPU Clock & Memory by 20mhz increments till I was down to about +120 on the Memory and roughly +80/90 on the GPU, but still getting the error.

Should I apply a little more power to counteract the overclock?

 

[Rusty0611]

Put the power offset to max and find the core /memory limits individually.

 

[OptimaLnrg]

not sure on the error tbh, never seen it

but just to inform you, the 'power limit' does not apply more voltage to the card. you can set it to maximum and it will do bugger all. it acts as a power draw ceiling

 

[Freddie1980]

So you overclocked and you got an error while benchmarking. I don't mean to state the obvious but try dropping your clocks and run it again and see if you get the same error. My crappy gtx670 won't pverclock for toffee and heaven falls over even with a modest 50mhz overclock.

 

[snips86x]

not sure on the error tbh, never seen it

but just to inform you, the 'power limit' does not apply more voltage to the card. you can set it to maximum and it will do bugger all. it acts as a power draw ceiling

I've not touched it, that is how it was when I started Afterburner.

So you overclocked and you got an error while benchmarking. I don't mean to state the obvious but try dropping your clocks and run it again and see if you get the same error. My crappy gtx670 won't pverclock for toffee and heaven falls over even with a modest 50mhz overclock.

That's kind of what I did, all the way down to 90 on the core and I think 120 on the memory, still nothing.

Don't think I'll bother as it clearly doesn't like it. It's not a bad card and does the job really well.

 

[pgi947]

Error is driver crash due to an unstable oc, probably on the core.

 

[snips86x]

Error is driver crash due to an unstable oc, probably on the core.

hmmm.....I think I'll leave it. The overclock doesn't seem to be as substantial as I would like, so I'm not likely to get much of a performance increase. Think I'll leave it.

 

[pgi947]

With 3dmark11 device hang or device removed errors usually mean the device driver has crashed due to the overclock.

Max out the power limit and work the core first then work on the memory. Overall you should manage at least an extra 10%

 

[snips86x]

Ok, so I've managed to find overclocking setting which are not crashing 3DMark11 or killing the driver, but the overclock is less than 10% of the stock value:

Overclocked Settings:

http://i47.tinypic.com/inxy1h.jpg

If the image is larger than 1280 pixels then please either resize, link only or put in spoiler tags. Thank you.

The results are as follows, but I'm not sure the performance increase is worth it. Can you advise, if the less than 10% overclock of the base settings, is worth the increase?

Stock:

Overclocked:

 

[MeMeMeMe]

3d mark scores aren't linear. Look at the detailed scores section (at the bottom of the results webpage ) and compare frame rates for the two runs.

Or run an app which does give direct frame rates, like heaven 3.0, or an in-game benchmark.

 

[pgi947]

3d mark scores aren't linear. Look at the detailed scores section (at the bottom of the results webpage ) and compare frame rates for the two runs.

Or run an app which does give direct frame rates, like heaven 3.0, or an in-game benchmark.

This, especially Heaven as it will give you a direct frame increase to compare with. If you also look at the individual graphics score in 3dMark11 you'll also see you pushed an extra 500 points