Tech Corner

[mr.hackcrag]

I found which fan has the problem. It is the top back fan and it is not touching any wire. I think it is problem of the fan itself. When I touch the center of it, I feel a vibration when the sound it makes occurs and there is no vibration when it is not making the noise. I think it is probably the bearing of the fan that something is wrong. I can buy a new fan, but I've never installed one myself. If I paid the store to do it, it would be very expensive for probably a simple job.