Maintaining PC Fans - All You Need to Know

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PC fans typically use sealed bearings and do not require oiling; if they are noisy, replacement is recommended. Oiling can lead to dust accumulation and potential damage, especially if the fan locks up due to worn bearings. While some argue that oiling can extend fan life and reduce noise, the consensus leans towards replacement as a more reliable solution. New case fans are inexpensive, making replacement a less stressful option. Ultimately, maintaining fan functionality is crucial to prevent overheating and damage to components.
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Hi all,

I just opened my desk PC case for cleaning. There are fans, one in the power supply and one over the CPU. Do I need to oil the fans and what kinds of oils are suitable for this purpose?
Thanks
 
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The fans in your computer almost assuredly use sealed bearings and cannot be oiled. If a fan is making noise, it's because the bearings are shot, and the entire thing needs to be replaced. They're cheap.

- Warren
 
Don't oil them, chances are you'll spray oil everywhere, dust will stick to it, and you'll have no end of grief.
 
It's a good idea to replace the cpu fan before it is worn out. What could happen if the bearing is worn out, espessially if it it a low speed fan, is that the destroyed bearing will lock up the fan, so that the processor will be destroyed.
 
I don't see the problem with oiling the fans if you know what you are doing. Here is a good tutorial:
http://www.dansdata.com/fanmaint.htm
Oiling your old fans increases the chance they will last longer, and might actually improve efficiency/lower noise too.
 
nobb123 said:
I don't see the problem with oiling the fans if you know what you are doing. Here is a good tutorial:
http://www.dansdata.com/fanmaint.htm
Oiling your old fans increases the chance they will last longer, and might actually improve efficiency/lower noise too.

Case fans are as cheap as $2-$3 now. It would be considerably less stressful just to buy a fan and put it in. Also you don't have to worry about spilling oil everywhere.
 
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