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what are these rubber holes on the back of the pc case? (lemmy.zip)

submitted 5 months ago* (last edited 5 months ago) by rolofox to c/[email protected]

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What are the rubber circles for on the back of my pc case? Should I just leave them like that if don't have a need for them? Or are they likely to let I'm dust into the motherboard?

Edit: thanks for all the replies, so just for water cooling I have no need for.

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[–] [email protected] 2 points 5 months ago (1 children)

Mine has an 3 position exrernal fan switch for manual control, cable comes out those holes. Also useful for direct header usb that you run an extender cable out to another device.

[–] [email protected] 1 points 5 months ago (1 children)

3 position? all of my fans get controlled in software from 0-100% speed, reacting based on temperature

[–] [email protected] 2 points 5 months ago

While that is an option for anyone, its not something I wanted. Mine is cube with 200mm fan. The lowest setting is fine for the thermals, but if I'm video processing I will toggle to high, but for voice over or a phone call comes in I drop it down low. The random up and down of the fan if left to its own device creates a noise I don't want to deal with.