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View Thread: why don't power supplies come with a built in UPS?
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    just lost power for a split second, which caused the PC to reboot ...

    Are there power supplies which enable a PC to withstand such a brief power hit? I normally build my PC from parts and I don't skimp on the power supply. Yet, I have never noticed any being sold with a built in UPS or advertised with the ability to maintain power for a few seconds.

    I have a small IBM AS400 server running sometimes. And more often than not when I lose power like this the AS400 stays up while the PC falls flat.