high pitched sound on overclock - problem?

bluxa

Member
Aug 4, 2007
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A few months back I built a computer with the following spec:

Q6600
P5K-E
Antec P150 case (with 430w PSU)
EN8600GT Silent (passive cooling)
Transcend DRR2 800 RAM
Samsung HD501LJ Hard drive

The computer has been working fine. I had it overclocked to 3GHz until recently when I overclocked it further to 3.2GHz. (1.4v)

The memory is rated for 5-5-5-15 with 1.8v but I am currently running it at 4-4-4-12 with 1.95v. It has been running at this latency at both 3Ghz and 3.2GHz.

Since the overclock to 3.2Ghz the computer has begun to emit a low high pitched sound usually under load, but also sometimes on the movement of the mouse while highlighting something. The sound is low but high pitched, tinny and electronic - almost like the noise the sometimes comes out of monitors.

I've listened inside the case to try and locate the source of the noise but its pretty difficult to pinpoint. it seems to be either the video card or the MoBo.

Temps on the computer are pretty low now summer has gone. And the computer seems to be running ok (except for one issue, where Spy sweeper is suddenly taking 3.5 hours to run a scan that it used to do in 15mins - but not sure if this is related).

At 3Ghz the sound almost disappears but i have began to hear it a little at this speed too, although only slightly.

Anyone any ideas what the problem could be and if it is serious?
 

SerpentRoyal

Banned
May 20, 2007
3,517
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Probably the coils on the MB. You need to make a paper megaphone to isolate the noise. Could also come from the PSU. Run Orthos to stress CPU/MB/PSU will make it easier to track down the source of "high pitched" noise.
 

RadiclDreamer

Diamond Member
Aug 8, 2004
8,622
40
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I had a machine do this as well, it was the power supply. It never caused any issues but was damn annoying. after replacing the psu it went away
 

bluxa

Member
Aug 4, 2007
54
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The sound does seem to be coming form the PSU so I think it may be the same. This is relatively new machine and PSU - should I RMA it? Is it likley to cause problems or die on me?
 

40Hands

Diamond Member
Jun 29, 2004
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Originally posted by: bluxa
The sound does seem to be coming form the PSU so I think it may be the same. This is relatively new machine and PSU - should I RMA it? Is it likley to cause problems or die on me?

I would recommend RMA or getting a better quality PSU. Power is an area that I would never slack on since all other components depend on it.