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Old 2021-02-18, 01:24   #5
Batalov
 
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Mar 2008
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This noise is the sound from ball bearing (or similar. needle bearing etc) support for the fans.

There are some (temporary) solutions: e.g. you carefully press into the center of the fan's head; and then repeat N times because it will fall back into the same regime. Every once in a while it will find a new position that will work silently for days or weeks. Replacing the fans is a tedious but a longer term solution. (Tedious because you have to find exactly proper replacement, sometimes wait for 5 weeks to get it from Alibaba... The less obscure your graphics card, the better chance that you will find a middleman who buys from Asia, and resells from a local address for a small delta in price.)

See also.
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