Hello,
I was servicing one of my sites and noticed really bad noise from CCR fans. (vibrating and resonating a lot) After few bumps to it (mainly for not working sfp1 which died this morning) noise stopped. Thes are bad bearings in one or both fans… where to buy new one? Do you know voltage and correct dimensions?
the fans are high rpm 30mm deep 1U fans. You dont exactly have to replace with the same fans as theres a mod you can do for a quieter alternative which works fine only if your room is kept cool. In a hot room it isnt suggested to have sustained high cpu loads.
Heres a link to the mod i did. It takes the standard 12V fan.
https://www.snbforums.com/threads/silencing-and-servicing-a-noisy-ccr1036.34467/