Opening up PSU's - safety issues?


Standard Member
I'm considering replacing the 92mm fan in my Enermax PSU with a quieter Papst fan. But is there anything to the warnings on the outside of every PSU to not remove the cover? From what I know about electronics, capacitors inside the PSU don't hold much charge but this charge can be released quickly resulting in a high current for a short period of time.

Chris Muriel

Distinguished Member
I would suggest using an insulated screwdriver or long-nose pliers to short out the contacts of any electrolytic capacitor you can see ; either short the capacitor contacts (to each other) or to the PSU case. Also short the output leads before you undo the case.

Chris Muriel

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