1-in-a-milion mother board short

S

Samm

New Member
i made a big mistake yesterday and tried to plug the power for the CD rom while the power was on and accidentally shorted the ground pin to the +12V on the cd rom and power supply. After that the system died. tried to power it up and nothing happened. I is not the power supply, becuase i tested it and it worked fine with 3.3 12 5 -5 -12 volts etc. unplugged all the devices and the system would not trun no nothing happens. I looked for a fuse or a diode on the mobo to repair but i could not find anythat were visible.
Is that the end of the road to the mobo?
Is the processor shot too?
Are the other devices dead too, or can i use them somehwere else?
Anywhere i can send this off to be repaired or fixed?
this board is dear to me beacuse it has an ISA card and 5 PCI and a AGP hard to get that combination now, besides i cant afford one now. Thanks
 
at first it sounded like a fuse was shot in the PSU, but you said you checked that, i would look for burn marks on the motherboard, although that is not the only indicator of if the board is fried. You could check the processor by putting it in another motherboard, and do the same with your motherboard, get one of your friends computers, and plug all of his crap into your board, see what happens
 
most likely guess that you have blown a fuse, if you're lucky (and you have fused plugs) then you would have blown a fuse that is external to your psu
 
Thanks guys for the replies:
First i doubt that i have fuable plugs, it did not catch my eyes, besides i already tried to power the PSU with a paper clip and it worked giving me 3.3 -12 12 5 -5 etc voltages, unless u r talking about fuable links on the mobo.

I will check on ebay for the same kind, but there is always the chance that it is has a problem or has been mishandled during it is life and will just make a short visit to my place before it settles in the recycling plant. But i will try and look for bad parts on the Mobo, becuase i would think the mobo is engineered to protect over current sourcing and shorts. Thanks everyone, i will let you know what happens.

Side note:
the sad part is that i just had gotten done with machining one side of the case and replaced it with an acrelic sceen and a fan :(.
 
dont you have another pc, where you can test the stuff from your old one?

and you say really nothing happens? (also not the HD powering up? ) then you might wanna look if the power swich is alright. (maybe fire up the PSU, and then connect it to the mobo? but i dont know it thats wise/possible )
 
Good thinking Archangle, about the switch, however i soldered the wires on the switch myself so i know they are solid on there, but i will double checK it anyways. I do not think it is possible for me to power up the switch before pluggin it in the Mobo, becuase it is the kind that powers on through the mobo, or shorting 2 pins together on the 20 pin connector.
Also thumbs up on the idea of powering the PSU before plugging it in the mobo, i sometimes do that here at work as a last resort when i am troubleshooting a circuit board or at home when i fix a TV. This further damages what ever component(s) on the circuit board and that way I know which compent to change.

thanks guys u all are very nice
 
you can override the swich by shorting the 2 pinns on the mobo where the swich usually is connected.

b, do you hear nothin power up or something like hat?
 
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