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Humming Noises

By samu3950 ·
I'm getting a humming noise when I turn my PC on. The PC goes through the boot process but the OS is not appearing. There is no display. What is cause of this problem?

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by sgt_shultz In reply to Humming Noises

not sure. have you tried another monitor?

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by willcomp In reply to Humming Noises

A humming noise is usually associated with power supplies and transformers. In a standard PC the two suspect components would be the power supply and monitor.

Sarge is on the right track. Change monitors first.


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by ozi Eagle In reply to Humming Noises


I doubt whether you could hear a power supply "humming" in a computer as they are switching supplies and operate at very high frequencies. Humming is usually associated with bulky iron core transformers, operating at 50 or 60 Hz.
What I would suggest is to check your fans (very briefly stop them with a finger on the central hub, not in the blades, they may cut you) to see if the humming stops when the fan stops. If so replace the fan, preferrably with one with ball bearings, they're only a couple of dollars dearer.

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by RCOM In reply to Humming Noises

Agree with fan being the issue. If the CPU fan has slowed too much or stopped and you have a AMD processor its cooked. AMD CPU's instantly fry themselves if not cooled. So if its not booting I'd say that the problem. If the power supply fan is spinng slow tht shouldn't stop the system from booting. But it may be damaged from overheating.

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