Bit of a weird one. I was running a test on 3dmark and I noticed a faint buzz that started when the test started. Its hard to explain the noise, its quite faint but is a buzzing sound, or maybe if you imagine the sound of an electric cable, very very faint version of that, almost inaudible.
It happens when the gfx card hits 60% power usage and max core usage.
Should I be concerned?
I stopped the test and put the two gfx card cables on different rails, and changed the cables in case something was damaged but its still there.
Maybe its normal under extreme load, I don't know. It could even be the processor in it ticking away in really not sure
Best Answer Aergan , 20 May 2014 - 21:14
It's EMI (Electro Magnetic Interference), usually it's to do with poor shielding or overloading power circuitry that causes a resonance throughtout.
V-Sync wont solve the issue directly, just lessen the load on the GPU by throttling the frame rate.
The only non-physical way to resolve it is to enable Clock Spread Spectrum within your BIOS/UEFI Firmware, manually set voltages to correct values (can lessen voltage fluxuation on load) or don't overclock with your current setup.
Alternatively, swapping to a PSU that uses better shielding or a much higher rating should resolve the issue.Go to the full post