Solved 1.5 yr old hp desktop making rattling/buzzing sound.

January 14, 2016 at 23:06:56
Specs: Windows 7, 3.40 GHz
Hello,

I've used this desktop for 1.5 years and it is making buzzing and rattling noise.
I put a photoshop and couple text books on top of it to stop the noise while I work.
Where is the noise coming from inside my computer and what's causing it?


Thanks in advance.


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#1
January 14, 2016 at 23:11:18
Dust build-up on the fan(s).
Something fell inside the case through the vents and is making contact with the fans.

Unless you some other mechanical devices in you desktop....


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#2
January 14, 2016 at 23:36:57
Hey,

Thanks for the reply.
So I've gotten a duster to clean it but it didn't help.
What do you suggest to clean the dust? I've been smoking near my desktop for a year, but I don't do that now. It seems dusts are stuck onto places I cannot reach?


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#3
January 15, 2016 at 00:30:15
✔ Best Answer
Yeah, probably something related to the fans. If it's nothing obvious like a cable or wire hitting the fan blade it's probably a fan going bad. With the computer running and the cover or side off exposing the motherboard and internal parts, use your finger to gradually stop each fan one at a time. If you find the bad one the vibration will stop. Don't use a screwdriver to stop it as you can break the plastic fan blade that way. Once you figure out which one it is you can replace it.

Edit To check the PSU fan you will need to use something like a screwdriver since your finger won't reach in. Put it in just far enough to stop the blade from spinning (you don't want it to touch the internal circuits) and put the screwdriver in BEFORE turning on the computer so the fan blades don't break.

To clean out the dust I use an air tank I fill with a small pancake air compressor. It's a handy thing to have around the house anyway for such things as airing up low tires or blowing dust out of air vents. You can also buy canned air dusters at places like office supply stores but they tend to be expensive and come out cold causing some condensation on the parts you're trying to clean.

message edited by DAVEINCAPS


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