CPU is overheating

[Ognjen998]

I've bought my AMD FX-6300 about 6 months ago and every 2 months dust builds up in the cpu fan and the temp skyrockets and shuts down my pc. I used to just clean out the dust and it would work fine again but today when I cleaned it the cpu still overheats and shuts down pc.

Sorry for my bad English. Thanks!

 

[JasonL265]

What temperatures are you getting at idle and at load and what CPU cooler are you using?

 

[Maarsch]

Whoa, do you keep your computer in a sawmill?
If the answer to Jason's question regarding idle load temperature is high I'd say there's a different problem.
Probably have to re-attach the cooler to the CPU with fresh thermal paste.

 

[Ognjen998]

Sorry for the late reply,

My pc is in my room and there's no dust flying around but somehow it manages to get into the cpu fan, my case is a Cooler Master Centurion 5 II with intake and outtake fans which work well. Idle temp is 34 degrees celsius (93F), on full load it rises up to 90-100 celsius and pc shuts down. I've never changed the thermal paste since I bought the CPU, is it such a huge overheating factor?

 

[Maarsch]

If the paste is correctly applied it should never need to be changed.
Idle temp is OK, so I guess it's not a cooler seating issue.

Is the cooler a stock cooler? You may have to get something a bit more robust. Might as well, sounds like this one is bust.
Do you have something that tracks the RPMs your cooler is making, does it make it to over 2000? Is the cooler loud when it kicks into high gear?

Other courses you should consider persuing:
Change where you have the computer. If it's directly on the floor more dust gets in. Especially if it's on a carpet or if you have pets.
Don't lock it in a cabinet, air cooling relies on getting a supply of room temperature air. If you lock it up the ambient temperature will rise and you can't cool with it.
Outtake also doesn't deal with dust as well as intake does (creates overpressure).