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  • Fix a PC power supply fan without needing screwdrivers

    I recently bought a Supermicro PWS-865-PQ power supply on eBay. It was cheap, and I did not think that something should be wrong with the unit. Only as it arrived, could I see a lot of dust in the PSU. So, I decided that I open it and clean it with air and brush. However, the dust was somehow strange. Guess what: the previous owner did something like the thing in this article, but was not careful enough, and the fan blew a lot of oil into the PSU, which acted as a glue on the warm (and warmer, warmer, hot, hotter...) components. Luckily, this is a server PSU, and it has been made to be rock-solid even if one of the two fans fail, so it works well. But most PSU's are not as solid as my one. Please be very-very careful, if you apply this method, because the dust can block the heatsinks in...see more »I recently bought a Supermicro PWS-865-PQ power supply on eBay. It was cheap, and I did not think that something should be wrong with the unit. Only as it arrived, could I see a lot of dust in the PSU. So, I decided that I open it and clean it with air and brush. However, the dust was somehow strange. Guess what: the previous owner did something like the thing in this article, but was not careful enough, and the fan blew a lot of oil into the PSU, which acted as a glue on the warm (and warmer, warmer, hot, hotter...) components. Luckily, this is a server PSU, and it has been made to be rock-solid even if one of the two fans fail, so it works well. But most PSU's are not as solid as my one. Please be very-very careful, if you apply this method, because the dust can block the heatsinks in the PSU, which can result in the overheating of the FET's, which can result in overvoltage, overcurrent, fire, explosion, etc, and the removal of oiled dust is a long and painful process.

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