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PC Power Supply Discussion Troubleshooting and discussion of computer power supplies

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ronss ronss is offline
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Default past psu problem

a few years ago, probably many, i had a antec psu unit, it could have been 450 watts....i had it connected to a gigabyte board. then one day i smelled something, and shut off the computer....;when i open the computer up, and examined where the smell originated, it was where the 20 pin connector attached to the motherboard, the outer 2 pin s.....it got hot there, and had burnt mark , and melted the plastic around a couple of the pins......is that a power supply problem that did this?
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Would be good to know what wires.

The problem is not the PSU, per se. The problem is the motherboard is putting too much of a load on those particular wires.

Especially if the PSU only had a 20 pin, as you said it did. If there was a large +12V load, it has to rely on a single +12V lead to supply that power.
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it was either 1 and 11 i believe are 3v
or 10 and 20 which i believe are 12v and 5v

it was a 20 pin connecting psu, i sort of belive it was the 10 and 20 pin end that was black and melted
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