http://forum.corsair.com/v3/showthread.php?t=85166
f you believe that your PSU is louder than it should be there are a few things you should check before assuming that the PSU is faulty. First, you should be aware of what can cause the noise that you are hearing. If you are hearing a buzz or electrical type sound, then it’s likely due to a capacitor somewhere in your system that is vibrating at a frequency which is clashing with the rest of the components in the system. Usually this capacitor is either on the PSU, motherboard, or graphics card and you should be able to try a few things to narrow down the issue.
We have seen that the CPU power saving features in the BIOS can cause the PSU to emit the noise. Try disabling these features to see if there is any improvement. ERP, C1E and EIST (Enhanced Intel Speedstep Technology) are few examples of power saving settings, but your motherboard manufacturer should be able to tell you specifically which features your board supports.
این گزینه ببین تو بایاس مادربردت هست؟
اگر تو بایاس مادربردت همچین چیزی نیست احتمال زیاد مشکل از خازن ولتاژ بالا پاور هست در واقع بزرگترین خازن الکترولیت پاور از نظر سایز.