Should my PSU be making noise?

deadshark

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Sep 29, 2009
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My PSU has been making a very quiet, high-pitched squealing sound ever since it arrived in the mail. It only happens when it's plugged in and powered on. I don't think I can hear it when the PC is on, but that could just be the fans drowning it out. It's not a grinding noise or anything. It's not a completely awful sound, but I switch it off when I'm done with the computer anyway.

This is my first build. Is this normal, or is the PSU about to go bust? It's been a few days now, and it's powering everything and the fan is spinning so I don't know.

Antec TruePower New TP-650
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371021