So I just got this PSU a couple days ago: http://www.newegg.com/Product/Product.aspx?Item=N82E16817151102
Now I hear a high frequency sound coming from my computer. It has two different frequencys it sounds like, one high and one lower, which it switches from every 2 or 3 seconds. Is there anything I can do to fix this? I can hear when the PC is off as well, and turning the PSU off doesn't even change anything
Other system specs that may have something to do with it:
z68 extreme3 gen3
i5-2500k @ 3.3 ghz
xfx 6870 (soon 7970)
If turning off the PSU, using its main power switch, doesn't change anything then its not coming from the PSU.
If, however, the high pitched noise disappears when the PSU is turned off, then the cause would be the PSU and you should exchange it with Newegg.com since it's within their straight product exchange period (Return for replacement within: 30 days policy). Otherwise you'll have to deal with it through Seasonic's RMA process.