abnormal cpu usage
ive been experiencing weird cpu usage lately...i've just unplugged everything at the back of the tower and opened up the case and cleaned the dust inside the case..i cleaned the dust on the psu fan and the cpu heatsink fan.
when i was done and put everything back together , i rebooted the pc and after that i see noticeably bad chokes when playing games and eve normal tasking. for example when i move my mouse around , it will suddenly freeze for half a second and then move again....i'm having mouse delay/lag and when i go to task manager it says im constantly using 5-7% cpu usage. I think thats not normal...it should be 0-2 %..
I used ad-aware SE and spybot S&D to clean the viruses and stuff..and after rebooting the problem is solved but after 30 minutes the cpu usage jumps back up to the abnormal level...
any help is greatly appreciated, thanks guys
Intel Core 2 Duo E6420 Conroe 2.13ghz
Gigabyte P35-S3 Motherboard
A-DATA 2x1GB DDR2 800mhz memory
Geforce 8600GT 256MB GDDR3 PCI-Express