So for a while now my computer has been experiencing these random fps drops when every I play games on it. It doesn't matter what game I play, the same thing always happens. 10-15 minutes after I start playing the fps suddenly drops to unplayable levels, after about 30 seconds it stops only to happen again about 3 mins later. I tried everything from checking temperature to adding RAM to upgrading my entire system to no avail.
My system spec.
Processor: Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz 3.00GHz
OS: Win7 64-Bit
Graphics Card: Nvidia GeForce 9800 GT