screeching

  1. D

    Need UPS 1 KVA ( as low noise as possible )

    Previously using APC RS 1100 which was noisy 24x7 is now violently noisy with screeching grinding noises after 3.5 years of use.
  2. R

    Screeching problem

    Hi, Since yesterday i have been hearing some strange screeching noise.Could anyone tell me what the problem is.I disconnected the rear fan,but that didn't seem to solve the problem.I think its a problem with my power supply.I have uploaded a low quality video of the problem on youtube...
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