PC Fans: Difference between revisions

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===Form factor===
===Form factor===
The fans seen most often in personal computers are 120mm square by 25mm deep (this is the only size specified in the Intel reference). Almost all radiators intended for computer watercooling are built around some number of 120mm or 140mm fans. A larger fan will typically require less power and generate less noise (due to a lower rotational speed) to move the same amount of air.
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!Fan size (mm)
!Fan size (mm)
!Typical hole spacing (mm)
!Typical hole spacing (mm)
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The fans seen most often in personal computers are 120mm square by 25mm deep (this is the only size specified in the Intel reference). Almost all radiators intended for computer watercooling are built around some number of 120mm or 140mm fans. A larger fan will typically require less power and generate less noise (due to a lower rotational speed) to move the same amount of air.


Common depths include 10mm, 15mm, 25mm, and 38mm, but these are (beyond 25mm) less standardized. As of late 2022, perhaps the best general-purpose fan on the market is the [[Phanteks|Phanteks T-30]], a 120x120x30mm fan.
Common depths include 10mm, 15mm, 25mm, and 38mm, but these are (beyond 25mm) less standardized. As of late 2022, perhaps the best general-purpose fan on the market is the [[Phanteks|Phanteks T-30]], a 120x120x30mm fan.