PC-9801RA21 Noctua Fan Mod Noise Comparison and Replacement Guide
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Published on ● Video Link: https://www.youtube.com/watch?v=7xgZWBVifII
The genuine fan is extremely noisy. Let's replace it!
Used fan is: Noctua NF-A8 ULN 80mm Premium Fan
This guide is very rough because I didn't shoot the photo many.
However, if you are an enthusiast, you may understand what I mean.