If the temperature climbs in your computer room, place a desktop fan near the computer. You'll be surprised how circulating air can reduce temperatures. Place your hand directly behind the power supply and make sure there is air coming out. If not, call your local computer technician. If there is no air coming out from the power supply it can not only potentially damage the power supply and the computer, but it is also a fire hazard.
All newer computers have small chip fans that clip onto the processor.
The processors get very hot and these little chip fans keep the temperature down. Make sure that fan is working or it is a guarantee that your computer will be taking a trip to the computer store. Check your fans inside your computer case to make sure they are working. Take off the cover and turn the computer on. You will want to make sure that the screwdriver and the screws are well away from the computer.