Computer keeps restarting every once in a while
Hi guys, I have been having an issue with my computer restarting randomly. It has worked fine for about 2-3 years now but today it started acting like this. I first noticed the problem when I got home and turned on the computer to play Medieval II: Total War, it restarted my computer after only 1 min of playing. So I tried to play the game agian when the computer had finished rebooting and it rebooted agian when I launched the game agian before it even finished loading.
I thought the problem might be the game so I tried to play a different game, so I played Battlefield: Bad Company 2 for about an hour and had no issues. Then I was browsing the internet and it restarted randomly agian....
its been restarting randomly all day today. Do you guys think my power supply is dieing? whats a good program to monitor Cpu & GPU temp? I dont think its a temp issue though because my hard drives are running 30-35 degrees.
I also havent re-applied the thermal paste I had applied on the cpu since i built the pc because its really difficult to remove the aftermarket heatsink, could that be an issue too?