faint squealing sound pc power and cooling silence 750 quad

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Hi knowsitall,

When filling out the RMA form, just explain that the wires got stripped when the case was assembled, before the supply was powered-up. Also, be sure to clearly explain the conditions under which the PSU would make the whining sound (heavy load, light load, ambient temperature, etc.) Besides, I suspect that the technician reviewing your RMA'ed PSU would know whether you damaged the supply or not.

It is unlikely that a short-circuit would result in the high-pitched whine you mention. A sustained short-circuit would either result in catastrophic damage (if there is no protection circuitry) or the supply would merely detect the over-current condition and shut down safely (the most likely option with a high-end PSU).

Give PC Power & Cooling a chance to stand behind their product. Let us know what happens.

Regards,

Altazi

 
its been about 2months now, after sending thye power supply to the company twice, and me complaining like crazy, they finally decided to replace the damn'd thing.