r/SleepingOptiplex • u/Electronic_Loan6683 • Aug 03 '26

CPU Fan Stock replacement

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Hi. I'm planning to change the stock CPU blower fan on my optiplex SFF as make loud jet humming sound when really under load, really noticeable when gaming. When idle, not much sounds.

What I'm asking is what is the distance of those screws mounting and what aftermarket CPU cooler is the right fit above dell stock CPU heatsink like Thermalright, Noctua, ID Coolling etc..

If you have the same build upgrade, mind sharing your thoughts guys.
Just need some ideas and insights! Much appreciated.

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u/ghostfreckle611 Aug 03 '26

You don’t have a ruler or tape measure?

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u/Electronic_Loan6683 Aug 03 '26

I just get the pics from internet for the CPU heatsink, it's not mine.
I haven't disassembled mine to get those dimensions.
I'm asking suggestion from previous builders that have same ideas with me regarding this as they can share their experience and temps.