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12V power connector melted

bexmxe
By bexmxe
in Power Supplies
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so, I finally solved why my computer is always restarting. it was the 12V power connector that is melted inside and outside the plastic cover. 2 of my power supplies already melted its 12V power connector.. so is it time to change the motherboard? my motherboard is 970A-DS3P.. I got FX 8320 and GTX 750 Ti. thoughts? 

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https://linustechtips.com/topic/595938-12v-power-connector-melted/
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Just now, Unimportant said:

A single 'rail' PSU might not turn off - it's one of the dangers of single rail PSU's - You can draw the full power trough 1 cable and the PSU will think it's fine.

Which is exactly why I asked which PSU's OP had.

Almost breaking sig rules 1.0

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7 minutes ago, Unimportant said:

A single 'rail' PSU might not turn off - it's one of the dangers of single rail PSU's - You can draw the full power trough 1 cable and the PSU will think it's fine.

 

5 minutes ago, TeoIzAwezome said:

Which is exactly why I asked which PSU's OP had.

 

10 minutes ago, airdeano said:

extreme resistance can also develop melting issues. possible the prior installs could have damaged that socket to where nothing else short of replacement will remedy the issue. got any pictures to show the melting damage?

that top part of the 4 pin 12V power connector is melted inside. the gold thing inside is can be barely seen because of the burnt. the power supply still works. the pc would just restart always. and the 4 pin 12V socket in the motherboard is just fine

13165914_1113755418686555_6565980186427023741_n.jpg

13177919_1113755438686553_262794680649520852_n.jpg

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7 minutes ago, airdeano said:

lower picture is unclear, but it looks as if the sockets on the left are scorched/missing. this could be a bigger issue.

I'd say the socket is complete fine. the only problem was the male 12V connector. first my Seasonic S12ii burnt and then now my Deep Cool De-500. earlier I can feel electric shock in my pc case. after 5 hours of gaming my pc suddenly shutdown and realized that the 12V is melted

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Eighter you are overclocking or for some other obscure reason pulling too much power trough the CPU power connector causing it to melt or the pins in the motherboard socket are somewat thin and fail to make a good connection. In the latter case a solution could be to squeeze the contacts inside the connector on the PSU side a bit with fine pliers so they grab onto the motherboard pins better.

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either those 4-pin connections were terrible or incomplete, or there is a mobo issue to cause the melting.

melting is from high current/ resistance and the weakest link (plastic) melts from the excessive heat.

if you are confident the PSU connections were solid, then i'd say the mobo is at fault. contact the mob manufacturer and start a support ticket.

you weren't overclocking with some wild voltage, were you? this will be asked. that mobo is at the edge of supporting that CPU.

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1 minute ago, airdeano said:

ng is from high current/ resistance and the weakest link (plastic) melts from the excessive heat.

if you are confident the PSU connections were solid, then i'd say the mobo is at fault. contact the mob manufacturer and start a support ticket.

you're right, I just look at the cpu support list of my mobo and my fx 8320 is I think the last support? but I didn't have this problem in the whole 1 year of gaming. I'm not overclocking, I Reset the bios, all default. 

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then the toll of the extra TDP pulls have slowly degraded that motherboard's circuitry. not really anything that can be done to use that CPU on that mobo for future use as the issue will continue with a new plug end will result in the same problems. a lower TDP CPU could allow the usage for the future, but the 8350 is going to cause a fire if continued use is done. start saving some cash for a more stable mobo for that CPU or move into the current gens of CPU platforms.

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3 minutes ago, airdeano said:

then the toll of the extra TDP pulls have slowly degraded that motherboard's circuitry. not really anything that can be done to use that CPU on that mobo for future use as the issue will continue with a new plug end will result in the same problems. a lower TDP CPU could allow the usage for the future, but the 8350 is going to cause a fire if continued use is done. start saving some cash for a more stable mobo for that CPU or move into the current gens of CPU platforms.

Don't really have the money to move into a bigger platforms on not relating to my current ones. I think I'll just change my motherboard for my 8320? do you think if I buy fx 6300. would this mobo will do the job again?

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