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Would this be considered normal VDCC behavior on a 7950?

post #1 of 5
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I am trying to troubleshoot a "buzzing" sound within my system. I have narrowed it down to either my PSU or my GPU. This sound seems to come out at its loudest when Vsync or Frame Limiting is not enabled and as I understand it, this is similar to issues most encounter with "Coil Whine". One fail safe way for me to reproduce this is to have Borderlands 2 running while at the main menu.

While the main menu is up, I had GPUZ running and noticed something odd. My VDCC current and power seem to jump around a lot. I was wondering if this is normal behavior for 7950's and if this indicative of having a bad GPU/PSU? I have tried using both BIOS included with my card as well as running each BIOS setting while at stock, OC'ed and OC'ed with a Power control setting of 20%.

The Red
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The Red
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post #2 of 5
Buzzing sounds is usually the PSU atleast as far as I've found.

It's called coil whine. It usually happends when your PSU is being stressed.

I CAN be the GPU but not likely, just run a high stress GPU program like 3dmark.

Take the cover off your case and just listen.
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post #3 of 5
Thread Starter 
While running Vantage, the buzzing sound only occurred during the first two tests - then nothing. I will continue to read up on it and contact OCZ (again). In the meantime I wanted to know if my GPUZ screen shot seems... abnormal to anyone.
The Red
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post #4 of 5
Well it looks like the voltage is fluctuating.

Which could also point to GPU.

Does it ONLY happen when running 3dmark and such?
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post #5 of 5
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The buzzing? Oddly enough it only happens when my FPS is over 200~. For example, if I am actually playing Borderlands 2 then all is quiet. If I leave it on the options / title screen then it buzzes. If I play Saints Row 3 it is dead silent. If I leave it running the options / title menu then it starts to buzz. Only the first 2 tests of Vantage cause it to buzz - and buzz BAD. Any other section on that benchmark and it is whisper quiet.

I tried the new BF4 beta today and it did not even so much as make a peep. Mind you, my FPS on a 64 player server was in the low 50's to mid 60's and never any higher.
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