HD 4850 Memory Temperature?

pcfreak101

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Jul 26, 2008
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So here's the deal. I noticed my HD 4850 with it's stock cooler is getting over 110 degrees C. So I was pretty sure it didn't used to get that hot, and decided to reset the heat sink. So I got that done, cleaned out all the dust, put new thermal paste on and everything, put it back together and shoved it back in the PC. Under load, the core temps are about 10 degrees lower, but the GPU memory temperatures are getting up to 105-110C now. I'm not certain of what they used to be before, but I'm pretty sure they were lower than this. Also, when I tried playing Mirror's Edge a bit later, it froze randomly about every 5-10 minutes, and I had to alt-tab out and back into it to get it going again. Also, around a half hour in, a greenish hue started appearing on all the surfaces. Neither of these things had ever happened to me before. I know enough about overclocking to know that is a very good indicator that the temps are too high, or the clock is unstable. So I quickly exited, and found the memory temps around 112C, with everything else around 98C. I am going to order an aftermarket cooler, but in the meantime, I want to verify that these memory temperatures are unsafe, and that they are probably what caused the unstable performance and graphics errors in Mirror's Edge. Thanks in advance.
 
I don't know for sure, but even the 98C on everything else is pushing it. When my 4850 hit 110C in a game, I got worried and bought an aftermarket cooler. Now it is at 40C idle 60C max. I really wouldn't recommend running at those temps anymore. That should about be the point were it throttles and coould damage or shorten the life of the card. So to answer your question, yes, those temps are definitely pushing unsafe levels. Fortunately though, there are plenty of great GPU coolers out there. I got the Akasa Vortexx Neo for my 4850 (just FYI).
 
I'm going to guess it is one of the single slot cards. The cooling was poor from the start, and only got worse with age. 110W was just too much for them. I forgot to mention that my card that hit 110C was one of the original single slot cards. The swap is pretty painless though, kinda fun actually.
 

pcfreak101

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Jul 26, 2008
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I have the reference Visiontek card. I just ordered the Arctic S1 R2 cooler, along with the turbo addon, Scythe ramsinks, and another 120mm case fan. This should cool things down, unfortunately at the expense of $60