Desktop pc making an electrical buzzing sound

[chriswa2002]

So i let my pc downloading games at the night, when i woke up it was making some buzzing electrical sounds, i do not know if it was because i left it on all night. help please, should i worry about this? is it a thing that could damage my pc?

 

[jay32267]

You should be able to leave your PC on as long as you want.

As far as the buzzing....can you tell where it's coming from?

It's not a fan hitting something is it?

It could be a hard drive. They can make noise before they fail.

It could also be the PS.

 

[k1114]

MERGED QUESTION
Question from chriswa2002 : "Desktop pc making an electrical buzzing sound"

So i let my pc downloading games tonight and when i woke up it was making a buzzing sound, my pc has never made these sounds before, the computer has a lot of dust, and i do not know if i should worry about it

first do the clean up and check your system temp using hwinfo sensor page .

 

[g-unit1111]

You should be able to leave your PC on as long as you want.

As far as the buzzing....can you tell where it's coming from?

It's not a fan hitting something is it?

That to me sounds like it could be the most logical explanation. I'd check the fans first to see if something is blocking them (loose wire, not screwed down, etc). Then you could start checking other hardware to see what the problem is.

 

[chriswa2002]

I think its coming from the PSU, it is making electrical noises from there

 

[chriswa2002]

Ill do a cleanup, is it safe to brush the gpu with a tooth brush?

 

[chriswa2002]

can this damage my computer?

 

[jay32267]

I rarely find dirt or dust directly causes a PC to fail.

...but I think the best way to clean is using compressed air....and not too close....just enough to blow the dust out.

If the noise is coming from the PSU...I wouldn't jerk around with it and I would buy a new PSU.

 

[Wayfall]

Okay so first thing is to buy an air can, you can pretty much get them from any handy man kind of shops. Use the air can from about 60cm-1M away from the target in quick bursts, as in around fans.

Use an antistatic cloth to clean any dust around you pc, becareful around the motherboard and make sure the PSU power cable is unplugged including turning the switch off at the back.

The buzzing noise can either be coming from the Hard Drive, Motherboard, PSU or GPU. A fan doesn't really buzz that much but it could be the fan motor which is in the centre of one.

A motherboard, PSU and GPU all have capacitors and if one is dying or damaged it can buzz then pop.

The buzzing sound i would most likely guess is from the PSU or GPU as coil whine. I get coil whine from my GPU the most while im playing Hearthstone, BF1 or Farcry 4. It can be very random.

Stick your head in your case and listen out for the noise.

 

[g-unit1111]

Ill do a cleanup, is it safe to brush the gpu with a tooth brush?

No. Do not do this. Use an anti-static cloth instead.

I think its coming from the PSU, it is making electrical noises from there

What are your full PC specs? What is the make and model of your PSU?

 

[chriswa2002]

i think i got a 550wat, it has never ever done that sound, just at the morning when i left it on for the night

 

[chriswa2002]

Anti static? can you give me examples?

 

[Wayfall]

Anti static? can you give me examples?

Anti-static cloth:
https://www.amazon.co.uk/Ex-Pro-Optical-Microfibre-Screen-Cleaning/dp/B008VQO4D4/ref=sr_1_1?ie=UTF8&qid=1520962127&sr=8-1&keywords=Antistatic+Cloth

 

[g-unit1111]

i think i got a 550wat, it has never ever done that sound, just at the morning when i left it on for the night

What is the brand and model? If you do not know the sticker on the side should be able to tell you.

 

[chriswa2002]

i am not at my house right now, i will do tell you later, again, can this damage my computer if i play games like pubg?

 

[jay32267]

Yes...it has the potential to cause damage.

 

[Wayfall]

i am not at my house right now, i will do tell you later, again, can this damage my computer if i play games like pubg?

It depends really as it could be hardware dying or malfunctioning or their may be a surge in your plug

 

[chriswa2002]

it only sounds when i turn on my pc, then it goes away, it is coming from the PSU

 

[jay32267]

I would get a new PSU ASAP.

 

[chriswa2002]

Why, what if i cant buy a new psu

 

[jay32267]

Well...it may last forever that way...but let's just say "it's not a good sign".