Really loud fan and machine powers of randomly

thebourke · 17-07-2021 10:54am #1

I have a windows 10 machine.

The fan is really loud and the pc powers of randonly at times.

Anmy ideas what could be causing the issue?

jhegarty · 17-07-2021 11:09am

Sounds like it's overheating. Desktop or laptop ?

thebourke · 17-07-2021 11:45am

desktop

Alun · 17-07-2021 1:48pm

Have you ever cleaned it out? The various fans, heatsinks and ventilation holes get clogged up with dust over time, and need cleaning out now and then.

Smiles35 · 17-07-2021 10:33pm

The machine will power off if the CPU is getting too hot. It might have always been near to an overheat. If cleaning the fans does not help, get some thermal paste and reseal the cpu.

thebourke · 18-07-2021 11:17am

Cleaning the fan...do you need to do that with a can of compressed air or you just clean of the dust manually with a brush etc?

regards the thermal paste and resealing the cpu...is that difficult to do as i have never done it before?

will any thermal paste do?

Smiles35 · 18-07-2021 1:02pm

https://boards.ie/discussion/comment/117626855#Comment_117626855

Personally, I'd just spend loads of time with a brush. Keep in mind it's not just the cpu fan your looking at it's checking the vents at the front and rear as well.

Resealing the cpu is just a matter of taking off the cpu cooler from it's mount, and taking out the cpu to scrape whatevers on it off and putting it back in again once you have applied some paste. There are lots of videos on youtube about this. You should watch one first. They would be under headings such as 'Reapplying thermal paste to a cpu'. I don't have a recommendation for thermal paste. I bought some and I was just lucky it was fit for purpose. If you find some that's branded/has some reviews, go for it.

Resealing the cpu is going with the suspicion that someone did a bad job while mounting your cpu in the first place.

Before you do that. I'd try and discount the graphics card as being the problem. That's the only other thing I can think of that can cause unexpected restarts. Do you have a graphics card? If so do you have access to a spare? Alternatively, does your cpu have inbuilt graphics so you can test your system without it?

You can leave the side panel off your pc as well to deal with heat. Lots of people do and as long as there are no kids running around it will be fine.

thebourke · 19-07-2021 12:56pm

ok will try it out with the brush..

one thing i have noticed, i am getting 'Very High' power usage for cryptographic services if i look in task manager

magicbastarder · 19-07-2021 1:02pm

knowing how much dust computers can accumulate, if you can, take it outside before opening it out and blowing out any buildup. you could end up sitting in a cloud of dust.

Alun · 19-07-2021 1:03pm

My vacuum cleaner allows me to run it in reverse, which I use to give my desktop machine a regular clean out. Do it outside though especially if it's pretty dirty. Use a small brush to remove any stubborn dust on the fan blades as well.