Irritating buzzing noise

[ICit2lol]

Seem to be plagued with problems at the moment. Have just fixed one and now the Sandy Bridge is making a fairly loud buzzing noise a bit like a doorbell being pushed. It is fairly intermittent and the sound lasts for a few seconds or for a minute or so. It doesn't seem to be related to anything I am doing at the time either.

Have tried tracking it down but seems to be nowhere in particular.

any ideas anyone please before I go stir crazy??

 

[crawfish]

It could be Windows grinding a hard drive endlessly for any of several pointless, counter-productive reasons, and some hard drives seem to do periodic recalibrations or self-tests or something all by themselves, which I've observed to continue even after ejecting a docked drive from Windows. These things can last from seconds to minutes, and I can imagine it being described as "buzzing". Also check that fans are securely mounted and momentarily stop them one by one to rule them out.

 

[ICit2lol]

Ok mate I'll try the fans as I only have SSD's hooked up right now

 

[crawfish]

That's funny. My first sentence actually started, "If you have a hard drive in the system," but I deleted it as I thought it was overly cautious. As for other causes, motherboards can make whining sounds ("coil whine"), but I haven't heard it described as buzzing before. The PSU can also make whining sounds, and it usually has a fan that could buzz.

 

[ICit2lol]

Strange that mate as your post started
"It could be Windows grinding a hard drive endlessly for any of several pointless,"

Oh ell whatever eh? Yes well this is very intermittent and some days may not be there the Corsair HX 650 I have never had a problem with so it must be down to fans I guess

The buzzing is a bit like those high pitched door alarms you get in shops definitely a piezo type sound.

 

[fireberd]

I've seen noises that were not electronic, but mechanical such as a case door vibrating. I used to have a Dell Dimension E510 desktop PC and there was a plastic bezel around the front optical drives and USB I/O that would buzz occasionally. I had to stick something between the bezel and the case to make it solid and stop buzzing.

 

[CountMike]

It could be coming from the speaker/buzzer connected to MB and BIOS is alerting you to an unusual occurrence like too high temperature, fan malfunction or under/over voltage. After a while cooling fans could get dry bearings and start to oscillate when right conditions are met and stop when their speed or temperature changes.

 

[ICit2lol]

Yes well have looked around for any loose fittings and I think it is generated because it is so intermittent and a bit like Morse code?? I haven't heard it for the last three hours and I am now wondering if it is maybe the UPS which is not far away on power up that is when it seems to occur.

I shall dig out an old stethoscope tomorrow and use it to try and track it down and when I power up again.

 

[ICit2lol]

Now I have an idea it may be the CPU temp warning going off as the Tcase of the i5 2500 is 72C and doing a full scan with the Kaspersky ran the temp to 65C which is unusual because any other scan only takes it to 40C