Computer started to make sound/slower

[PurkkaPoika]

So basically my pc started to make huge sound. if i restart, its just going to start and do that same sound again. sound comes from cooler.
everything were fine yesterday, i played games and stuff but then i installed a new game and it took about 5 hours. meanwhile pc started to make that big cooler wind sound, but i just though its coz comp is doing alot installation stuff and its understandable. after installation i went and played it, and the game was super laggy and couldnt really play much. so i pretty much though its coz my comp has been on for 2days almost, and just downloaded huge game file. so i just went sleep. next morning i opened up my comp, and it started to make that same big cooler wind noise again. and the game still didnt run smoothly. i cleaned my pc from dust today and did virus scan, i had few java viruses which i put in quarantine. but still.. pc just turned super loud, and games wont run anymore like they used to. Any ideas what could of caused this?/any ideas what to do to fix?























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[Moontrash]

it sounds like your motherboard fan header has gone bad or your cpu/processor is overheating...thats why the fan is so loud

if its the fan header then you can buy a fan speed controller by Zalman and if the cpu fan has "3 pins" then plug the fan into it and you can control the fan speed to keep the cpu cool. If this works then the header is bad and there's not much you can do except get another motherboard. The fan speed controller method works fine though. Just make sure you turn up the fan speed if you do heavy processing. Turn it down a bit when you down etc

If the cpu is overheating then try and clean all the dust out from the heatsink.

[aedipuss]

it might help to actually check the temps and fan speeds. something like cpuid hardware monitor should work.

[hello_hello]

I think ideally you'd want to take the side off the case (did you do that when cleaning it?) make sure all the fans are clean and spinning properly and then see if you can work out where the noise is coming from. I know you said "sound comes from cooler" but which one? Are you referring to a case fan or the CPU fan or power supply fan? If it's a fan, chances are if the computer's going to run slow because things are getting hot it's not going to happen immediately you turn it on unless you work it very hard, very quickly, but maybe if you can pinpoint the exact cause of the noise.....

[AlanHK]

You have several fans in your PC.
One at least in the power supply. One on the CPU.
Often one on the graphics card. And maybe others on the vents to direct air generally.

When the bearings get worn or jammed up they slow down and get noisy, so your PC runs hot.

You should open the case and run the PC and work out which ones are bad.
It's possible to lube the fans, but they're cheap and mostly easy to replace. Except the one inside the power supply, that's usually not "user repairable" and you have to just replace the whole thing.

I did take my power supply apart and lube the fan, worked fine for a few weeks, then it literally exploded, so I wouldn't recommend it.

[nic2k4]

That game you installed is the one thing that changed before the problem appeared. You should try to go back to a restore point prior to when you installed that game and see what happens. Don't try to just uninstall the game.