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Warhawk
02-06-2009, 05:11 PM
My PC was going haywire followed by a blank monitor with "no signal". Obviously it requires a re-boot.

The power supply connector to the motherboard has one terminal that is slightly melted. As you look at it, it is the yellow wire that is on the bottom row to the left of the tab that locks the connector to the motherboard.

I'm pretty sure this is a 12v supply wire.

Anyone know what this feeds 12v too? I would assume maybe the 3D card PCI-X but really that is only a guess.
biggunsar
02-06-2009, 05:17 PM
first ever computer question that stumps me. Good job!
Honest Bill
02-06-2009, 05:19 PM
My computer always criticises me too. It's so fucking judgemental .... NOTHING IS EVER GOOD ENOUGH!
Dirty l3um
02-06-2009, 05:22 PM
im not an expert on this sort of thing but if i had to guess you had a short and it got so hot that it melted the plastic. i think you should get another PSU and install it (preferably from another comp, because your MB might be fried as well) if another supply works the voila but if not you will probably need a new MB. get your manual out, check the specs and take some resistance readings with a multimeter in order to further diagnose your problem

edit: the bad thing about the problem your having is that the PSU is where the problem happened. that regulates to the amount of power going to your MB so if your psu shorted and sent a virtually ininite amount of current onto your mobo its possible that you fried everything. dont get upset just yet, your mb could be fine. (COULD be)
Darwoth
02-06-2009, 05:24 PM
must be because you weren't running enough shadows and foliage.


told ya
Skraylok
02-06-2009, 05:25 PM
It sounds to me like you didnt have a secure connection, but the pins were close enough to make the current jump which caused the melting.

Me thinketh you may have fried that wire..


Either that or the melted one is a ground wire and there was no secure ground.
Doon
02-06-2009, 05:26 PM
Ahhhhhhhhhhhhhhhhhhhhhhhhhhh
Warhawk
02-06-2009, 05:29 PM
Yes to all of the above.

I replaced the connector end before and it was fine for a year. Its a lot of soldering though, and not fun...but only cost 2$.

Crap.

PS any idea what fuse i should start with if I put a fuseable link on that wire, just as a cap to the max that can blow through?
Arkh
02-06-2009, 05:31 PM
What's your POS PSU ?
akrippler
02-06-2009, 05:31 PM
I dont mean to de-rail but Ive got such a simple question I didnt want to make a thread. The floppy drive on this computer at work keeps trying to read something every min. or so. The green light will come on and Ill hear it make a sound. I havent put a floppy disk in that thing for years.... anyone got any ideas?
Dirty l3um
02-06-2009, 05:32 PM
I dont mean to de-rail but Ive got such a simple question I didnt want to make a thread. The floppy drive on this computer at work keeps trying to read something every min. or so. The green light will come on and Ill hear it make a sound. I havent put a floppy disk in that thing for years.... anyone got any ideas?

disconnect it
Darwoth
02-06-2009, 05:33 PM
I dont mean to de-rail but Ive got such a simple question I didnt want to make a thread. The floppy drive on this computer at work keeps trying to read something every min. or so. The green light will come on and Ill hear it make a sound. I havent put a floppy disk in that thing for years.... anyone got any ideas?

ghosts
akrippler
02-06-2009, 05:34 PM
disconnect it

ghosts

I like Darworths explanation more.
Arkh
02-06-2009, 05:35 PM
I dont mean to de-rail but Ive got such a simple question I didnt want to make a thread. The floppy drive on this computer at work keeps trying to read something every min. or so. The green light will come on and Ill hear it make a sound. I havent put a floppy disk in that thing for years.... anyone got any ideas?

Skynet. Kill it before it hacks the Pentagon and launches nuclear bombs everywhere.
Warhawk
02-06-2009, 05:44 PM
What's your POS PSU ?

Its a 450w antec crappy one. It worked well for 5 years but apparently now is toast =(

Im going to build a system in June but I can not until then. I will fuse the wire.
Viluin
02-06-2009, 05:47 PM
The CPU, graphics card, and maybe (Not sure) the motherboard use 12v power. Could be anything.


Either that or the melted one is a ground wire and there was no secure ground.

Yellow = 12v. Black = ground.
duszkin
03-21-2009, 10:23 PM
Same problem here i crash into "no signal" state quite often in DF. I have been strugling with it for 2 months and didn't find a working solution. But I'm 100% sure that it is Video Card thats causing this. Cozz apart from Vcard thats brand new i changed the whole rigg since this started happening.