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Can you change the 120mm fan on an ANTEC CP 850W PSU? It's quiet, just not as silent as my Noctua fans... Thanks
PSU's are designed as a whole with the fan - changing the fan could have adverse effects and damage the PSU and will void the warranty - they are best left as they are
If it is not broke don't fix it. The biggest source of fan noise in a PC are as follows: 1) GPU fans 2) CPU fans 3) case fans 4) PS fans..PSU fans are the least of your worries.