The power supply on a computer transforms the alternating current from the wall outlet into a direct current flow that the computer's components can use. Testing the DC voltage output of the power ...

Before we go forward and run some of the tests that we are going to see hereinafter, let us check a few of the symptoms to understand if those tests are worth doing. We have mentioned some symptoms ...

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Computer power supply units are designed to both power your computer's components and protect them from minor surges. But too large of a surge will blow a PSU's fuse and render a computer powerless, ...

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.

One application that uses a precision power supply and DMM involves characterizing the current drawn by a device or circuit board at different voltage levels. Figure 1 shows a typical setup. Engineers ...