2x dead gtx 480

N

NCX

Supreme [H]ardness
Joined
Jan 9, 2010
Messages
6,224
So I decided to order and Arctic Accerlero for 1 of my 480's. After I took it out everything went haywire.

When running with 1 480 my pc would lose it's signal or not work at all. I had oc'd it but I never had any issues with it before. Now it doesn't work at all. My PC will either shut off or just won't have a signal on start up. Tried using different PCI slots.

Luckily I have an extra 8800gt. So I installed that and tried using my single 480 and it worked for a bit then things when bad again. I have tested both 480's alone/1 with the 8800gt and together and my display will loose the signal or my PC will freeze.

The one time everything worked was when I uninstalled all Nvidia drivers, but when I re-installed them everything quit working.

If my PC does start up (8800gt as the primary) it does not recognize the other cards.

I have a 1000w power supply and Gigabyte X58-UD9 mobo. I used to run all 3 cards together (8800gt for physx) just fine.

I didn't activate my 30 day Evga warranty when I bought the cards (forgot/put if off) and have had the cards since sept 2010. I know the 480 with the arctic cooler is screwed and I read that Evga will still give the cards a 1 year warranty. Should I bother trying to call Evga and rma'ing my stock 480?

Not sure what to do here. I paid full price for these stupid things and there is no reason for my stock 480 to have quit working. I hate sinking hours into trial-error testing, what a waste of life. I'd rather get some enjoyment smashing the things.

Any advice or some one with similar experience weighing in would be appreciated.
 
If you still have the stock cooler for the 480 with the Accelero, put it back on and RMA that one too. Usually EVGA will offer a "one time forgiveness" for people that didn't register for their lifetime warranty, so just go for that. However, good luck getting fully functional cards back from their RMA department (just don't hold your breath).
 
I guess i should give them a call, but now i am getting black screens and crashes with the 8800gt so maybe the cards aren't the problem. My whole PC is screwed, I guess i wil have to take it in
 
Maybe try reseating your power connections and any other cards on the mobo (including mem). Could be something was marginally connected and when you went in to change things around it made things worse..
 
Tried all of that, thanks. Tested one of my cards in another PC, it worked fine and I checked all of the wiring. The problem eludes me so I will take it in.
 
more then likely the boards dying.. just test every part between systems and narrow it down.. don't friggin pay some one to tell you what you could find out on your own.
 
Boards don't usually die that nicely. They will either boot up or not...

Try swapping out the PSU. I've seen a dying / aged PSU do some funky stuff like that in the past. If you don't have a spare, I suggest you purchase one. It's always nice to have a spare.
 
Seraphical said:
Boards don't usually die that nicely. They will either boot up or not...

Try swapping out the PSU. I've seen a dying / aged PSU do some funky stuff like that in the past. If you don't have a spare, I suggest you purchase one. It's always nice to have a spare.
Click to expand...

mm not always.. took about 7 weeks for one of my boards to finally kick the bucket.. just stupid little things slowly died on it.. NIC wouldn't work over 10mbit... then the onboard nic finally died.. replaced it with a pci nic, worked fine at 1gbit.. then it wouldn't work over 100mbit.. then 10mbit then 1mbit.. til the pci slots stopped working. after that 4 of the sata ports stopped working and finally during a reboot it made it halfway through the reboot and just shut off and that was all she wrote. i took the heatsinks off the cpu vrm's and 3 of them were fried.


mmm actually i just thought of something else if its not the psu either.. did you try putting the 8800GT in and uninstalling the nvidia drivers in safe mode or windows. because the other day i had this problem where for some odd reason after installing the drivers it automatically enabled one of my cards in SLI to run as the physX card and windows went ape shit over it. wonder if maybe this happened because the only way i could fix it was booting with one of the cards removed and reinstalling the drivers and setting the physX to automatic. not sure if this would fix it but just something to check.
 
Last edited:
I agree with checking the PSU. I have seen defective psu's work just fine till the user enabled SLI. Not saying its the psu, but a good place to check.
 
Have you tried resetting your BIOS via the jumper or by taking the battery out.

If that doesn't fix it, it is either the video card, motherboard, or power supply.
 
I've Got 5$ on the power supply. no way 3 different gpu's all went bad at once.
 
I tried my gpus in my another pc, worked fine. The repair guy used my gpus in his PC and they worked as well. I just figured that the 480 died since everything initially went wrong when I took my card out to put on the accelero.

The reapair dude said everything was fine except when using my cards in my pc. He only messed around with it for about an hour before closing so I have to wait since they are closed on sundays.

The guy was as baffled as i was but then maybe he did not really know what he was doing. Beyond being able to put a PC together my knowledge is seriously limited so I figured I would take my PC in.
 
Apparently the key problem is the power supply (antec tpq-1200w) which is not outputting enough power
 
Guess I will get a Seasonic x1250 since of need my PC for school work rather than trying to call up antec.
 
Last edited:
well, won't hurt to try and rma the antec to have a backup unit.
 
I will. Cost 84$ for 1 hour of service but I am guessing they spent a lot more time messing around.

I wish it had just been the 480 that died
 
You must log in or register to reply here.
Back
Top