Random LAG( fps drops) then it fixes it self.

Okay this happens on just about every FPS game i've played since i've installed windows. Everything will be running fine and then it will randomly drop the fps heavily and it will do this for a min or 2 and then it will fix it self. I did have this issue at first i remember when i installed Win XP x64 but i remember i fixed it but don't remember how. Does anyone know of the issue i am talking about?

My system.

amd dual core X2 4200+ 2.2ghz
2 gig ddr memory
asus a8n-sli deluxe
8800GT 512 MB

thats 1 week prosessor

Anyways, i had some problems whit counter strike source lagging when installed w7,
i updated the grpahic card driver, then the direct x and it fixed itself

i know dude lol. I know my system would be far better if i upgraded but i'd need new ram and motherboard and maybe a new PSU but i'll try updating my direct x
i know my graphics card is updated

I am not sure if this update will work on Win7. But I recall the AMD Dual-Core Optimizer fixing similar issues on xp/vista.

i actually did that before i posted it because i remember i did something like that. Do you think that i have too low ram now? i have 2GB of ram should i get more?

Yes i'm running avast

try add a game to avast exclusion list and see if that particular game's performance improves.

Okay sorry for the late reply. I did add it to the exclusion list but it didn't help im really thinking its got something to do wit not enough ram

This fixed the same problem for me! Windows 7 & Core Parking .... a *better* way to Turn It OFF ....