I tried cleaning out my case and spraying with some compressed air to no effect. It seems like after a while, the noise gets less noticeable as the computer heats up. Would WD-40 do anything, or is that a stupid question?
I had this prob with my 5850,the fan would grind and rattle but only at 30% fan speed,very strange.so i just bypassed that speed with afterburner and has been grind and rattle free ever since.
When I booted up my 5850 for the first time yesterday it was making a knocking noise when the fan was on low. All the sudden it just went away... I don't have confidence that it will remain quiet.
When I booted up my 5850 for the first time yesterday it was making a knocking noise when the fan was on low. All the sudden it just went away... I don't have confidence that it will remain quiet.
The bearing on the fan is almost certainly going out. Had the exact same issue with a HD 5870. First the knocking sound kind of quietly, then it disappeared. Then a month or two later it came back and a week later and finally it was knocking/rattling like crazy. It took a while but if the sound is like a ticking knock it's almost certainly the same thing. Time to replace the fan (or the complete cooler with a better aftermarket alternative).
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