Sanjaya Maniktala has another power supply book out, his third since 2004. The first two were on switching power supply design, and this one covers down-and-dirty troubleshooting – Troubleshooting ...

An ATX power supply unit, or PSU, has a 24-pin connector for energy delivery. The symptoms of a dying or dead ATX PSU are identical to those of any PSU and involve operational problems in your PC -- ...

If your Xbox One console appears to have no power or not turning on at all, it may have something to do with the Power Supply Unit or PSU. Try checking the power cable and its ends to see if the ...

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1] Does the PSU fan spin on startup? Some users reported that their Power Supply Unit fan spins on startup but stops after some time. Others reported that the PSU fan does not spin even on startup.

We previously covered issues with iMac G5 power supplies, including a buzzing or humming noise emanating from the system that, in some cases, is variable dependent on processor usage, brightness ...