Hardware & Network TroubleshootingQuestion 75 of 100
A desktop shows no power at all — no lights, no fans. What should be checked first?
a.Reinstall the OS
b.Update the GPU driver
c.Power source, cable, and PSU switch
d.Replace the RAM
Explanation
With zero signs of power, begin with the simplest external causes: the outlet, power cable, and the PSU on/off switch and voltage setting. Software and internal component swaps come only after power is confirmed.
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