High frequency sound from computer

October 2, 2011 at 05:49:16
Specs: Windows 7, 2.5ghz / 4gb
This is a 5 year old custom built computer, probably 2.5 gig, 4gb ram, 4x HD's. First, the computer wouldn't start one of the HD's. Every time I switch on the computer I will hear the HD trying to start up and then shut down multiple times. This also affects another HD, so in total only 2/4 HD's work.

A while after this starting happening, my computer began delivering a VERY high frequency sound. This sound will usually come on after the computer has been on for about an hour, and it's absolutely excruciating.

Any ideas on what this could be, or how it can be resolved?


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#1
October 2, 2011 at 06:01:38
Sound sounds you power supply is giving up. The are components in the PSU called chokes that look like coils. The often give out a high frequency whine when they are getting old. The failure to start up the hard disks also would indicate a failing power supply.

The only solution is a new power supply.

Stuart


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#2
October 2, 2011 at 06:31:45
The only other high pitched noise is the CPU alarm, which indicates the cpu is over heating. Having said that I think Stuarts suggestion is the more likely problem as the cpu alarm usually starts seconds or minutes after the unit turning.

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#3
October 2, 2011 at 07:10:55
Thank you so much for answering this question. - Chris

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#4
October 2, 2011 at 10:18:16
Maybe the drive is failing. Have you tired disconnecting the one that won't power up to see if the system works OK after?

Or, disconnect some of the working drives and see if it then spins up. If it does then yeah, it's probably a PSU issue.


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#5
October 2, 2011 at 22:24:19
Yeah, it's most likely a hard drive problem. Hard drives use very little power (around 4-10w), so if the power supply has no problem running your 30-100w processor chip, it shouldn't have any trouble spinning up a hard drive.

Socket 939 | Dual-core Opteron 185 @ 3.2GHz | 4GB | 1.0TB | Win7 x64
GeForce GTX 460 1GB | X-Fi Ti Pro | A8N32-SLI Deluxe | Antec P182


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#6
October 3, 2011 at 02:33:33
That is providing the power supply is in good working order.

If the hard drive is the problem, two of them together, what is causing the high frequency whine?

Stuart


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