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The title of the question says it all.

The SMPS fan on my old P4 box is fairly noisy of late.

a. Should the fan be oiled?

b. What precautions should be taken?

c. Where should the oil be applied?

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2 Answers

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  • A no
  • B see A
  • C nowhere at all

PSU fans are usually sealed bearing or use solid graphite lube, and i can tell you from experience that opening up a PSU can be dangerous. You could in theory replace the fan, but its worth spending the 30 or so dollars to buy a nice new PSU, preferably with a 120mm fan.

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up vote -3 down vote

You can open the PSU al long as you make sure there is NO power in it. The bearing is in the fan hub,under the sticker. Remove the plug and add a few drops of oil. However,like the previous answer stated,it's better just to buy a new PSU alltogether,the newer units are a lot more effective.

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actually, no. most pc fans are sealed bearing and should not need lubrication over their lifetime. If the bearings are worn out, or there's some other damage, then there's noise. – Journeyman Geek Apr 10 '11 at 0:33
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