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fans shorted GPU may be dead - Page 2

post #11 of 26
Thread Starter 
sorry i took so long was trying to get the card to work it posts just no display and its plugged in now not being detected by the system


pics of fans plugged in + 6 pin as you can see went power=fans=6-pin and i repeat i have 1 dedicated 6 pin and 1 adapter not 2 adapters

post #12 of 26
What adapter are you using? I don't think anything should be connected to the 5v line (both the PCI-E and the fans are 12v) and that seems to be what's shorted.
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post #13 of 26
Thread Starter 
Quote:
Originally Posted by Darren9 View Post
What adapter are you using? I don't think anything should be connected to the 5v line (both the PCI-E and the fans are 12v) and that seems to be what's shorted.
exactly i dont get how it happened the bank of cales that the 6-pin was on is only used well for the 6-pin and my sata DVD RW and 2 fans every thing else is on the other

power supply spec

+3.3v-28A
+5v=35A
+12v-30A
-5v-0.5A
-12v-0.8A
+5vSB-2.5A

edit - its the 5v line that has melted not sure how tho you should have seen the smoke from the smoldering pvc or whatever it is they used its only the sections that are used for the fans the bit in-between the male and female molex connections for the 2 fans
Edited by craigs911 - 6/8/11 at 3:59pm
post #14 of 26
it melted becuse you used the fan molex jumper before the 6pin. the 6 pin draws to much power for a weak, thin wire to handle. i am surprised it didnt happen sooner. it must have finaly got weak enough to get hot and melt stuff till it shorted.. when useing a 6pin never put a fan jumper before it unless it is heavy duty and can handle the current draw.
post #15 of 26
Thread Starter 
Quote:
Originally Posted by The Fryer View Post
it melted becuse you used the fan molex jumper before the 6pin. the 6 pin draws to much power for a weak, thin wire to handle. i am surprised it didnt happen sooner. it must have finaly got weak enough to get hot and melt stuff till it shorted.. when useing a 6pin never put a fan jumper before it unless it is heavy duty and can handle the current draw.
lesson learned now was only like it today whiles planning were to run my cables around my case just dont get why it was the 5v line that did it not the 12v line thats the one that was in use
post #16 of 26
It seems more likely that the 5v has somehow been connected where it shouldn't (I'm just guessing to the GPU's PCI-e 12v), otherwise the 12v line would have melted. Can you trace the melted line through the adapters and see where it ends up?
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post #17 of 26
if your fan started to short for some reason it would put a load on the small wire going to it, and it could have melted into the 5v line shorting them.
post #18 of 26
Thread Starter 
Quote:
Originally Posted by Darren9 View Post
It seems more likely that the 5v has somehow been connected where it shouldn't (I'm just guessing to the GPU's PCI-e 12v), otherwise the 12v line would have melted. Can you trace the melted line through the adapters and see where it ends up?
just tracks back to my DVD RW drive the adapter only uses the yellow and black lines the gpu is in my system now its powered up fan is running but no display output the 3 lights on the back of the card do there thing system posts with no problems with the card installed just no display i dont think its being detected by bios any more

and the only spare system i have has a AGP slot not PCIE so i cant test in that
post #19 of 26
Quote:
Originally Posted by craigs911 View Post
just tracks back to my DVD RW drive the adapter only uses the yellow and black lines the gpu is in my system now its powered up fan is running but no display output the 3 lights on the back of the card do there thing system posts with no problems with the card installed just no display i dont think its being detected by bios any more

and the only spare system i have has a AGP slot not PCIE so i cant test in that
From the pictures to me it looks like it was the 5v line that overloaded, if it's only connected to the DVD though and that's on its own loop though then it shouldn't of happened, perhaps it was the wire from one of the fans that initially melted - I'd prolly be scared to test them though.
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post #20 of 26
Thread Starter 
Quote:
Originally Posted by Darren9 View Post
From the pictures to me it looks like it was the 5v line that overloaded, if it's only connected to the DVD though and that's on its own loop though then it shouldn't of happened, perhaps it was the wire from one of the fans that initially melted - I'd prolly be scared to test them though.
right now the fans are infront of me the only thing i have been testing is my gpu witch is well

but no im not touching these fans i have contacted the seller on ebay told them the problem and asked them to get back to me just inspected the wires on the fan closely looks like it sent 5v down one of the -v lines not shorted with the 12v line but with the negative cable on the fan so it sent it down a black wire to the gpu will post fresh pic
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