A three year old computer.When was the last time you opened it’s case.Computers are notorious dust collectors and dust is what kills computers.
The dust builds up around the CPU and the power supply and it just causes those items to overheat and wear out prematurely.
You should vacuum out your computers case at minimum of every six months.
Their are other causes of trouble overheated DRAM and video cards.
All of these problems could be stopped with only minor housecleaning in your pc’s case.
Good idea — I’ll open it up and vacuum it out. I don’t think I’ve vacuumed it out since it was new. Thanks!