The computer just won’t boot up. Yes, the cord is plugged in, the PSU switch is on, and the red voltage switch on the back is set to the correct voltage. You’ve eliminated the possibility that the power switch on the machine failed as well. Now what? In this article we’ll walk through some basic troubleshooting steps when testing a PSU for failure. If at any point you determine that the issue is not the PSU, I’ve included a link to a handy flowchart for PSU Testing at the bottom that lays...
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