How does a GPU cooler kill 2 motherboards?

KnickNut3

Platinum Member
Oct 1, 2001
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Hello. This is somewhat of an ongoing development in Tech Support (without much progress), but I figure the guys in here would be the experts on GPU-related stuff:

I'm about to throw in a new PSU, CPU fan, and Iceberq 4 Pro for my GF4 Ti4400 fan that broke. I replace them and hit the switch, and soem weird things happen. My EP-8RDA+ just flashes "FF" on the LED, and while that usually means everything's fine, it has to go through some other displays to show it's booting. Suddenly this MB will only post that and has no chance of booting. As I begin to test it more, other time it doesn't try to initiate booting, and I just start smelling burning. Also, the fan power ports on the top half of the motherboard stopped working right away, but the bottom port's fine.

I rip apart another EP-8RDA+ machine to make sure my CPU wasn't the thing burning. I switch it in and it's fine. I switch out PC #2's GF4 MX and pop in my GF4 Ti4400. All of a sudden it won't boot. I switch it out immediately and put the MX back in--only "FF." No power problems or burning smell, but dead none the same.

I've reset the BIOS on both machines, let them cool, etc etc. All I did on my GPU was rip off the old one, slop on some Artic Silver 3, and put on the new one and connect the power. Could I have shorted it out? Completed a circuit or something? Might I have disrupted one of the (whatever one of those cylindars on the card are... circuits, capacitors?)? Could that cause problems like this? Please point me in a direction--how a safe fan upgrade kills 2 systems is beyond me.
 

GonzoDaGr8

Platinum Member
Apr 29, 2001
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Did you wire the new fan to the power header on the videocard? If so, sounds like it could be trying to draw too much power through the AGP slot and burning up traces on the mobo.I would have wired it to a fan header on the mainboard or a seperate 4-pin plug to the PSU.
 

GonzoDaGr8

Platinum Member
Apr 29, 2001
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Wow, Don't really know what to say at this point except to look over the Ti4400 really carefully with the heatsink on and off to see about any possible shorting. Do you possibly have a PCI video card to try to see if you can get the machine rolling at all?
 

GonzoDaGr8

Platinum Member
Apr 29, 2001
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After reading your post in tech support, You need to deep six that Ti card. Something went obviously wrong with installing the heatsink and it has now become the common denominator in killing 2 boards.
 

robcy

Senior member
Jun 8, 2003
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Did your old Fan die while at work on the TI. If so then, it might not be the new fan , but the TI it self. If you have another vid card try that and see if the machine works. If that works then connect only the vantec and not the TI to see if that works, if all is good, then its the TI. It might have been ruined when the old fan died or when you installed the Vantec.
 

KnickNut3

Platinum Member
Oct 1, 2001
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Nah, the Ti4400 and Iceberq KILLED teh motherboards, i.e. no matter what graphics card I put in either of them now, they both don't work. Not sure if the card did it or the cooler, but I don't know why the card would go that wrong all of a sudden.
 

robcy

Senior member
Jun 8, 2003
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While I have never damaged a card by installing a diffrent fan, I have damaged a cpu. I kept getting errors, and kept resetting until I kaput the board. It is a shame that your burnt two boards, being without a puter it painful.
 

KnickNut3

Platinum Member
Oct 1, 2001
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Are we pretty sure the PSU was NOT part of the problem, since it was only part of one board and given my situation?

After a hopefully successful double-RMA and a new vid card, am I safe to use my new PSU?
 

KnickNut3

Platinum Member
Oct 1, 2001
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Bump. Is the PSU safe? No chance PSU 1 messed up the video card, then the video card messed up PC2?
 

Big Lar

Diamond Member
Oct 16, 1999
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Sounds to me like you have some artic silver where it shouldn't be, I do believe its conductive correct?