Performance issues with no culprit--help?

[BrianPCNoob]

I've been experiencing low frame rates in games where I exceed the recommended system reqs. After looking at my cpu/gpu temps/load it looks to me as if they aren't doing much work at all. Is there a reason this might be happening?

Resetting the computer typically resolves the problem(it occurs again later), but I don't think this should be happening so I'd like to stop it if at all possible.

Here are my specs: http://imgur.com/O0qtg

Any help would be great, thanks in advance.

 

[2fast4thetown_down]

Recommended system requirements means you can run it on medium What game,resolution and on low medium high or ultra

 

[BrianPCNoob]

Recently, a game called Smite and another called Tribes: Ascend. I used to run Tribes on Very High settings with no problem, (60-90 fps) and smite runs well on most machines really, (I was getting 100+ fps) but then it locks at 20-30 fps.

Edit:1280x1024