CPU bottle neck on mid-high CPU?

[mufn]

The reason I have been having low random gpu usage drops and random fps drops recently is because I am bottlenecking. Usually I'd be playing a game just fine for a bout 5 mins straight when suddenly I get raped. These drops usually last for about a minute and my GPU usage will drop from 90% or so to 40% or so. I haven't monitored my CPU usage much during playing but during the drops my cpu usage will drop as low as 10%. I have an AMD phenom 965 BE, nVidia GeForce gtx 460, 4gb, ASUS m4n68t m v2, and a 650w power supply. Should I up the voltage on my CPU or something? There is no reason my cpu should be bottlenecking any nVidia card. I've checked my temps and they are ok. I've tried a few different driver versions, overclocked my cpu and gpu, tried gaming with default clocks, boosting up textures, lowering textures, lowering resolution, and boosting resolution.

 

[mikeangs2004]

I don't think your CPU is bottlenecking unless you are using high quality and resolution on a very demanding title. It might be a software issue.

 

[mufn]

I don't think your CPU is bottlenecking unless you are using high quality and resolution on a very demanding title. It might be a software issue.

I'm using pretty low settings in cod4. I can flawlessly run 250 and 333 fps just fine until the drops.

 

[amuffin]

a 460 can max cod 4 out easily.

 

[mufn]

a 460 can max cod 4 out easily.

That's what I don't understand. My temps are fine. And almost any decent quad core and some good dual cores should be able to feed a 460 just fine. I can flawlessly run this game, I just don't know why my cpu and gpu usage is so low. And i can't fine any drivers for my cpu. Do they even exist?

 

[amuffin]

Which exact 650w psu and are the drivers for your mobo and gpu updated?

 

[mufn]

Which exact 650w psu and are the drivers for your mobo and gpu updated?

I'm using the thermaltake tr2 rx. And my gpu drivers are up to date. I have been using different drivers to see what I can get out of them.