Shorts can cause the PC to power off without warning and without an error alert.
They can also cause the PC to not power on at all, and potentially cause damage.
See ourImportant Computer Repair Safety Tipsto learn how to stay safe while you work on your box.
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Turn off and unplug your box.
Pick up the computer carefully and gently rock it side to side.
While the computer is off and unplugged, bring up the case and inspect all the cables.
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Look for stripped, naked, or frayed wires.