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Why my cpu power plug is melting

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im usin asus m4 motherboard & 2gb nvidia geforce graphics card& 8gb ram
i've changed the cpu main 3 pin power plug thrice but every time i do one pin in the plug turns black as it melts down
is it the spyke? or mother board?
i have changed the power options in windows 7 to high performance coz im running avid media composer

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Power supply Authority
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I hope you don't mean the plug that goes into the PSU at the back.

If you do its bad PSU, or really poor quality leads. Take it to a shop unless you know how to change a PSU.

Is this weren't potentially so serious I'd call troll.
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If plug is melting - HIGH power dissipation at pin/socket.

Either excess current thru the pins or the Pin (or socket) has become oxidized and is dropping excess voltage across the male/female pin.

As Asked, is this a Fan Pllug as "power to MB" is a 4/8 pin and/or a 20/24 Pin connector.

13thmonkey said:
I hope you don't mean the plug that goes into the PSU at the back.

If you do its bad PSU, or really poor quality leads. Take it to a shop unless you know how to change a PSU.

Is this weren't potentially so serious I'd call troll.


YEAH, its the plug tht goes into the PSU at back, if its the problem withe psu i'll change, but the other end of the plug is melting( 3 pin plug which goes to the main power supply)

RetiredChief said:
If plug is melting - HIGH power dissipation at pin/socket.

Either excess current thru the pins or the Pin (or socket) has become oxidized and is dropping excess voltage across the male/female pin.

As Asked, is this a Fan Pllug as "power to MB" is a 4/8 pin and/or a 20/24 Pin connector.

its not inside the cabinet or on the cabinet its the main wire plug tht goes to UPS
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this is important/dangerous enough that i would not recommend any experimenting to find out the source unless you are an electrician, in which case you wouldn't be here asking, you'd be telling us whats wrong.

something is seriously up here. you need to find a professional to help you, can you post a piccy of the melted plug?

13thmonkey said:
this is important/dangerous enough that i would not recommend any experimenting to find out the source unless you are an electrician, in which case you wouldn't be here asking, you'd be telling us whats wrong.

something is seriously up here. you need to find a professional to help you, can you post a piccy of the melted plug?

heres the pic
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awin10 said:
heres the pic

It sure looks like a problem with the AC outlet that you're plugging it into.

It looks like the loose contact on that leg is causing arcing and heating it up enough to melt it.
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Sorry mouse, trying to express the seriousness of the situation.

looks like the socket in the UPS is the problem. Once that pin has gotten dirty with carbon it will only get worse.
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13thmonkey said:
Sorry mouse, trying to express the seriousness of the situation.

I understand that but please try and do so without resorting to the kind of language that admin have asked us to clamp down on, ta v.much.
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Mousemonkey said:
I understand that but please try and do so without resorting to the kind of language that admin have asked us to clamp down on, ta v.much.


no problem

13thmonkey said:
no problem

leave the language prob man...! heres no prob with that.
So if its the ups im takin it to the shop along with the molten plug.
im just asking u if there is any problem with the psu or any component which may be pulling extra power into the machine.thts why i mentioned all the power ops and stuff.
Thank you and all of ya who responded well.
thx

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that part of the plug is a solid brass lump, the copper wire in the cable would melt first if it were pulling too much power. My thought is that the socket itself is high resistance and therefore causing heat to build up. Also check with your shop that the 3A plug that you mention is enough, 3A at 240V is only 720W, at 120V its only 360W, so you probably need more than 3A plug, but thats typically a fuse issue, the physical plug would be the same (in the UK at least).

13thmonkey said:
that part of the plug is a solid brass lump, the copper wire in the cable would melt first if it were pulling too much power. My thought is that the socket itself is high resistance and therefore causing heat to build up. Also check with your shop that the 3A plug that you mention is enough, 3A at 240V is only 720W, at 120V its only 360W, so you probably need more than 3A plug, but thats typically a fuse issue, the physical plug would be the same (in the UK at least).

THANX TO ALL

13thmonkey said:
is it fixed? is it safe?

YA fixed, I just tried with my pal's old ups and it works just fine.
so i figured the problem is ups, i now hav to take the ups to the store
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