Hey just a little tip. I always let this slide till it affects my computer, but if you are having lockups or restarts or discos, try cleaing out your pc. Spray the spray, take the video card and ram out and clean them and the slots. My 6800 fan had so much crud caked on it, cleaned it out and presto....not a good tip just one that should be restated everynow and again because its a simple fix.
