Computer overheating

Make sure the Fan is clean from the dust try cleaning it with a soft wet cloth after removing it from the motherboard dry it and then remove the processor from it too don't touch the pins just clean it on top of it got to the market and get the silicon heat transfer fluid tube just put some on the top of the processor and install it into your PC put the heat sink on top of it check the result and one thing more try to check the bios is there any option for fan controlling set to always run at 100% speed.try off automatic fan controlling specially in Intel's Motherboard.

If the pc keeps overheating then it's definatly NOT the power supply, Several possibilities come to mind.. Some people forget to put thermal paste on the heatsink and miss align the heatsink and cpu, is your cpu fan clean of dust buildup open the side of the case and leave the computer on for several minutes.. go into the bios and check the hardware monitor to see the speed of your cpu fan.

if your experienced you could replace the thermal paste with artic silver this will decrease the temp by a lot also get a can of conmpressed air and remove any dust

A simple solution is to, just go for a Servicing of your system, in which they would clean up the dust and rectify the other hardware problems your system would have , that causes the heat problem. Accumulated Dusts may also cause over heating at many of the systems.

well that's strange ... did your computer overclock?

That is some computer. If you are not running any process intensive programs, then it could be a virus interfering with your processor. The virus might be giving too much data to the processor thus making it overheat. If you can't find any virus, it might be that the computer is defective. If they insist that it is not defective, then your last option is to use liquid cooling. It might be a bit expensive (about $100 for a set last time I checked) but it's much quieter than fans.

You should also make sure that your PC is not in a warm room and that there is not a lot of dust in the case. You may also want to make sure that you are not over heating because your power supply isn't sufficient.

It may not be due to the fan. It may be due to the faulty power supply. The computer will shut down by itself if the power supply is faulty. Do a check on your power supply.

Clean your box out, make sure its in a room with a good temp, reseat the heat sink & fans if nessesary. I had a similar problem and it turning out a small clip holding the heat sink snug broke and therefor the heat sink wasn't securely pressed against the processor. Replacing the clamps fixed my problem.