PSU makes little whistle noise when PC is turned off

should I buy a new one ?

And what one should I buy ? what PSU is good enough for a gtx 460 ?
2 answers Last reply
More about makes whistle noise turned
  1. Could be a capacitor on the way out.
    A good 450-500W psu will power a GTX 460.
    What's your budget?
  2. The whistling noise is coming from the 5V standby power supply transformer, because of lose lamination's. It is nothing to worry about Switch mode power supplies can be noisy but if the noise is annoyingly loud the only cure would be to replace the power supply.
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