Random GPU Lag spikes?

I have been tweaking my system using ATITool and when it renders i get a smooth picture and then every now and then it goes choppy, I checked the background applications and there is plenty of free RAM, and i have also scanned for Viruses and Spyware. I have 1 Gig System Ram and 128mb GPU Ram. I also found that the Page file was at 1 gig? is this normal, and how can i check if my system is running to its specifications, Ie: enabling Dual Channel RAM. and Dual Core.

Random GPU Lag spikes?abtuvurys 2005

What graphics card is it and what is your core and memory clock speeds before you over clock them?

Because I have a Asus 7300gs and before overclocking my engine (core) clock is 550mhz and my memory clock is 540mhz. After I overclock its 650mhz core clock and 710mhz memory clock and i get smooth and laggy pictures at times.

Have you tried checking your temperatures on your components to see if they are too hot or have you tried lowering the clock rates when overclocking because i find that works.

Hope I helped :) And good luck

Random GPU Lag spikes?antivirus programs

heap size? - also your gfx card oonly has 128 mb memory... dont expect wonders