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Gpu getting hotter and hotter each day. Possible?

post #1 of 21
Thread Starter 
Hi guys. Just wanting to hear some of your experiences here. I feel that my gpu has increased in temp every day the last few days, only by a few degrees in total but anyways.

At first I felt that 67% fan speed were enough to cool my Gtx570 at 850, but lately the temps have increased to 80-81-82-83 and today it was even up to 84. Could this be because I added a sidefan in my Antec 1200 cabinet again? Even worse, could the chip slowly be dying in this manner? I have no experience with chip death, so any input is welcome.
    
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post #2 of 21
Couple of factors possibly:

* Dust build up
* Thermal paste degradation
* Warmer ambient environment
* Change in flow through case (maybe dust in the case as opposed to the GPU fan?)

Any of those that you can discount before thinking about the chip itself?
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post #3 of 21
It may sound stupid and you probably know this, but have you dusted the heasink out lately? An increase in dust (or ambient temperatures) are the most common causes of something like this.

If you have not dusted- buy some canned air or similar tool, and blow out the dust in the card.
post #4 of 21
Had a similar issue when I was OC'ing my card. Took off the heatsink and replaced the thermal paste with some Arctic Silver 5 and aired out all the dust in the case and saw my temperature drop by 20 degrees celsius idling and roughly 10-15 degrees celsius while on load.
post #5 of 21
Both of my eVGA GTX460 SC EE cards started off running reasonably cool: 35° idle, 65°-70° running Furmark.

I RMAed one when it would reach 80° in Furmark after 10 seconds.

Two weeks later the second card began doing the same.

I have replaced the TIM, there is no appreciable dust in the cooling fins, and now the card reaches 99° in Furmark, eVGA OCScanner, and the mid 90° range in games. This is at stock clocks and voltages, ambient air temperature of 20°-22°, very well ventilated case (even with side panel off).

It does not artifact, or crash, it simply gets (in my opinion) too hot, which it did not do for the first 3½ months I owned it.
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post #6 of 21
Thread Starter 
Ah. I figured it out guys. The reason WAS primarily the added sidefan, with perhaps some ambient temperature variance as cream topping. I also twisted the cabinet some degrees to direct the back outtake a bit more angled to the back wall (which is about half a meter away).

The result? 4-6 degrees reduction to a 79c max during 30-40 minutes of occt testing (fan at 70%).

Honestly I think the added sidefan only messes up the positive pressure in my cabinet, and that in worst case scenarios (no ventilation) it kind of picks up the hot air and pumps it in again.

Thanks for your suggestions guys. I have de-dusted many a heatsink through the years
    
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post #7 of 21
hmm so adding side fan increase temps? ok time to remove the side fan that i added when i got my new card.
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post #8 of 21
Thread Starter 
Quote:
Originally Posted by james8 View Post
hmm so adding side fan increase temps? ok time to remove the side fan that i added when i got my new card.
I guess this is very different from room too room, and placement and so forth, but its worth checking out I guess. Particularly as I see you have an Antec 900. I did several tests with and without, and I can 100% certainly say that it did add heat in my case.

Not very strange actually, as there already are enough fans that draw in from the front, and even more that push out the back/top, gpu and bottom psu. By pushing air straight from the side, downwards into this "mess" its not that hard to create a counterproductive whirlwind somewhere.
Edited by Chris Ihao - 1/12/11 at 5:59pm
    
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post #9 of 21
Quote:
Originally Posted by Chris Ihao View Post
... By pushing air straight from the side, downwards into this "mess" its not that hard to create a counterproductive whirlwind somewhere.
Totally ... I've never really liked/used side fans myself because I've observed that they often raise (overall) temps rather than lower them ... I believe that side fans are basically a 'hack' solution and not necessary if the rest of your case airflow is set up properly and moving an adequate volume of air.
    
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post #10 of 21
Something to consider about side fans is if you have your computer in a corner or a cramped space it may be drawing in hot exhaust air. Also despite the fact that the bulk of the heat gets exhausted out the back a lot of hot air is also dumped into the case and a side fan that is not properly positioned may disrupt the ability of the hot air to escape.
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