Ads

Tom's Hardware > Forum > CPU & Components > Power Supplies, Cases & Mods > [Solved] Why my cpu power plug is melting

[Solved] Why my cpu power plug is melting

Forum CPU & Components : Power Supplies, Cases & Mods [Solved] Why my cpu power plug is melting

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

Reply to awin10

Do you mean the CPU fan header?

Message quoted 1 times

Reply to silverliquicity

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.

Message quoted 1 times

Reply to 13thmonkey

This is nothing to do with power options. Remove the Power Supply from the PC, sounds like its faulty to me.

Reply to tobensg

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.

Message quoted 1 times

Reply to RetiredChief

Yep whatever psu you are using has a problem.
Replace it.

Message quoted 1 times

Reply to davcon

I wonder if he's still with us?

Reply to 13thmonkey

13thmonkey wrote :

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)

Reply to awin10

silverliquicity wrote :

Do you mean the CPU fan header?

no, the plug of the psu's power supply cable wire

Reply to awin10

RetiredChief wrote :

its not inside the cabinet or on the cabinet its the main wire plug tht goes to UPS

Reply to awin10

its the 'wall end' thats melting?

you are in the uk yes? if its plugged into the ups it sounds like thats at fault to me.

Message quoted 1 times

Reply to 13thmonkey

davcon wrote :

Yep whatever psu you are using has a problem.
Replace it.

Reply to awin10

13thmonkey wrote :

its the 'wall end' thats melting?

you are in the uk yes? if its plugged into the ups it sounds like thats at fault to me.

ok wat do u recommend?

Reply to awin10

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?

Message quoted 1 times
Message edited by Mousemonkey on 02-12-2012 at 06:53:16 PM

Reply to 13thmonkey

Ditch the UPS

Reply to RetiredChief

13thmonkey wrote :

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[img]https://plus.google.com/u/0/photos/109769404391377115101/albums/5708306595497588193[/img]

Message quoted 1 times
Message edited by Mousemonkey on 02-12-2012 at 06:53:29 PM

Reply to awin10

@13thmonkey, watch your language.

------------------------------

http://img545.imageshack.us/img545/3995/bl11.gif

Reply to Mousemonkey

awin10 wrote :

heres the pic[img]https://plus.google.com/u/0/photos/109769404391377115101/albums/5708306595497588193[/img]

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.

Reply to ko888

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.

Message quoted 1 times

Reply to 13thmonkey

13thmonkey wrote :

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.

Message quoted 1 times

------------------------------

Reply to Mousemonkey

Mousemonkey wrote :

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

Message quoted 1 times

Reply to 13thmonkey

13thmonkey wrote :

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

Reply to awin10

Best answer

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).

Message quoted 1 times

Reply to 13thmonkey