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Gtx 460 Overheating issues

post #1 of 11
Thread Starter 
So I recently received a "bricked" Evga Gtx 460 EE from one of my buddies. He had it second hand, and it would "run fine for a few minutes, and then the screen would go black, but the computer didn't shut down." He handed the card off to me, since I have a second 460 and could sli if I get this one working.

I ran a couple tests, checking sensors, and verifying everything in gpu-z and msi-afterburner. It looked alright so I booted a game to see where the problems were, and within about 15-30 seconds the fan sped up, and I checked temps to see them up to ~98*C. I shut down the program, and the temps normalized, but there is certainly a problem.

I'm intending to reseat the heatsink with new grease, but is there anything else I should be aware of? The fan seems to work well, so could this be a sensor issue? Is this a common issue with this model of 460? It appears that the card was forced to shutdown multiple times by previous owners due to overheating, will this have caused long-term damage?

Thanks for any advice.
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post #2 of 11
Most likely no damage has been caused. You may find that there's just poor contact with the cooler, maybe someone before tried to replace the thermal paste and got a wire stuck between the cooler and GPU. Also you could try the cooler from your other 460 on this one to see if the cooler is to blame and if it is, just get a new cooler for it.
post #3 of 11
Thread Starter 
I re-seated it with new TIM, and cleaned out all the dust. In the test I ran even with 100% fan speed it hit 98-99*C very quickly. It is blowing very strong out the back, and if I had to judge the air doesn't feel to be venting at an extreme temperature.

I dumped a bit of voltage (was over 1v stock) and dropped the clocks down to reference to try and figure out what the issue is, but I'm a bit stumped on where to go next with this.
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post #4 of 11
Could be a warped heatsink not making good contact....If you check the evga forums you will see this has happened quite a few times. You could pull the sink off carefully and see if it was making full contact or try the sink off you known good card and see if it helps...good luck!
    
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post #5 of 11
Yea if the GPU core is hot but the air coming out the back isn't then your problem is between those two points in the chain, so if the fan is working then that means the heat isn't getting to the sink. Try a different heatsink on it if possible.
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post #6 of 11
I had a very similar (or exact) issue with my evga gtx 460. I put new TIM, case fans, openness the side panel and placed a big fan to see if it would help. After that I used afterburner to speed up the GPU Fan as much as possible. It was very loud and the temperatures were still too high.

I bought a waterblock, and setup a loop and that was the best thing for me. My temps were usually under 40 during gaming after I did this.

It may not be your best solution. It was a great solution for me.

But make sure you are nit getting driver problems.
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post #7 of 11
Thread Starter 
I took a look again last night, and tested with a temp gun. The sensor was showing 99*C, but a thermometer on the back of the core (backside of the pcb) was showing 78-79*C. I then overclocked a bit to see if the sensor responded, or just hung out at 99, but it started climbing up to 103, so I think I can eliminate sensor error.

A current theory is that the card was updated with the "free performance boost" by EVGA, boosting it to 720mhz, and has been having issues for about a year. Adding those together along with the 1+ voltage I wanted to ask if there is any way to revert to the stock bios.

My other card has a reference cooler, with a different fan configuration, so I'm not sure if the power plug etc will work, but that would really be a last ditch since the first card is performing flawlessly and I don't ever like to screw with a good thing (runs games at 65*C with a 870 oc)
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post #8 of 11
Dude, if you know there is a possibility that the GPU is running at 100C or more, why are you running the card?! You should make sure you've sorted before running the card again.

If you're still having issues with the card, I'd happy take it off your hands and attempt to use it as a dedicated folding card.
post #9 of 11
Thread Starter 
I am not running the card; I ran a few tests on it to check where it was at, but it has been in my system for about 20 minutes of total time, 10 of them at idle. It was free so I have no attachment to it, and had already re-set the heatsink, so tests were necessary to figure out whether that solved the problem. I have had the card for two days now, and am trying to piece the situation together based on hearsay of the previous owner.

Basically if it works, great, if it burns up, well at least I tried. For what it is worth I think the card itself is fine other than the heating issues - runs games fine other than the heat. Any other ideas on what I can do without investing money into the card? I doubt baking would help in this scenario, but it might reset some solder that has become a problem.
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post #10 of 11
The problem is not the card, it's the cooling on the card so baking would do nothing. As I mentioned if the core is hot but the air coming off of the heatsink is not hot then your problem is that heat is not getting to the sink, so you need to fix the heatsink problem.
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