Pauses in games but not slow

[geeza]

When I run most games and im playing through them or in a multiplayer map for the first few minutes it will play smooth but get sudden jerks/pauses. I have just ran a few doom 3 benchmarks and found the following

1280x1024 high detail 8xAF 0xAA
First time ran -90fps
Second time ran -119.1fps

1600x1200 ultra detail 0xAF 4xAA
First time ran -47.4fps
Second time ran -57.7fps

1600x1200 ultra detail 16xAF 4xAA
First time ran -50.5fps
Second time ran -57.5fps


a. why doesnt the 16xAF seem to be doing much to my fps
b. why are the pauses happening as it is so annoying and is shown in my fps

I want it to be like the second time ran but all the time! I have defragged only a couple of days ago



edit - my 3dmarks are spot on

 

[geeza]

Do you have any sort of anti virus/firewall that kind of stuff.

Unplug the internet and disable it all and see if that cures the issue.

hmmmm, interseting. Ill try this when i get in. I *think* i just have my ram running at default settings (3-4-4-8 252mhz) ill check those aswell though when i get in. thanks.

none of my 3dmarks stutter or anything. i thought i might need a raptor/scsi drive but maybe not

 

[geeza]

timedemo demo1 usecache

thanks. got 56.1fps and no stutters. Is there a way of precaching the actual game so i get no pauses anywhere?