My CPU usage reaches 100% just minutes after I boot up, causing lagging problems with video and games. A few weeks ago, I did have a problem with what I assume was overheating, because my computer would shut down or freeze up after a few minutes. I totally disassembled it, cleaned the components, and put it back together, and it was fine for about two days, then when I tried to play videos the audio would move at a normal rate while the video lagged behind. I found another answer on this forum that said to disable a registry feature in avi files, due to the way windows handles incomplete files, and this worked temporarily. I run AdAware, Advanced Windows care and AVG every two or three days, and nothing turns up. I only have two startup programs running. When I look at the task manager, the CPU usage tabs on some programs fluctuate wildly, with firefox, and system taking up more than the others, firefox going up to 50% and system up to 95%. I don't know if it's a software problem, and if it's hardware, that would suck.

All you need to do is hit Ctrl-Alt-Del to bring up Task Manager, click on the Processes tab, then look to see what process is sucking up the CPU

: 2.93 G pCeleronD/1 g RAM...ouch

http://www23.tomshardware.com/cpu_2...

DigitalStorm, Stacker 830, XP Pro sp2, nForce 680i SLI, Kentsfield, 2gb, 2 8800GTX'S, X-FI Fatal1ty, 244T

I have the same problem. I am running XP SP2. My problem occurs when I open Internet Explorer. I am running IE7. Can anyone help? Thanks