Cause of desktop computer AC plug melting?
We discovered the family desktop computer's 110V AC cord to be swollen and
hard to unplug from the PC. Both the plug and the receptacle are partially
melted on what I think is the "hot" side (rather than the neutral side).
What is the cause for this? Are the PC components simply drawing more amps
than the power supply can provide, or is the power supply malfunctioning?
If the former, shouldn't the power supply have blown a fuse? When we
upgraded the graphics card, we installed a power supply that was at least
what the manufacturer recommended. Is there a way to know this won't
happen again if I upgrade the power supply?
Here are pictures of the receptacle and plug:
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