Slight melting in my 24 pin atx connector

[thelolster32]

Before I found this flaw in my system, my computer has strange behaviour. Like crashing with no BSOD, monitor losing signal, and random restart. Then today I was installing a videocard when I removed my 24 pin connector to cable manage it when I saw the melted part of the 24 pin.

Here are the specs:
A8-7600
MSI A78M-E35
2x4gb HyperX Blue DDR3 1866Mhz
AMD RX 550
Generic 700W (can only "handle" 550 watts said on the psu label) PSU
Generic Casing that came with the PSU

Here are some pics of the 24 pin:

Should I be worried about this because I'm still using the computer with that same psu still.

 

[coozie7]

Change the PSU.
Do it very soon.
Also, check the motherboard, using a magnifying glass if need be, for damage, especially the actual 24 pin socket it's possible the burning is the result of loose connection/s causing arcing.

 

[thelolster32]

There seems to be no signs of burns in the motherboard, but only in the 24 pin connector.

 

[coozie7]

Looks like it was arcing, check the socket again, make sure there's no damage or burning on the motherboard pins, then change the power supply, hopefully this'll cure the problems once and for all.

 

[thelolster32]

Looks like it was arcing, check the socket again, make sure there's no damage or burning on the motherboard pins, then change the power supply, hopefully this'll cure the problems once and for all.

So I've checked the socket again, all the pins looks golden as new except for 1 that is a little grey but is still a straight pin.

 

[coozie7]

Hopefully there's no other damage, if you're feeling a little paranoid you can use some electrical contact cleaner on the pin to clean it up before installing the replacement PSU.

 

[thelolster32]

Hopefully there's no other damage, if you're feeling a little paranoid you can use some electrical contact cleaner on the pin to clean it up before installing the replacement PSU.

Well I've installed the psu already