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-   -   Whats too hot for a HD 4870? (https://www.hardwarecanucks.com/forum/video-cards/15092-whats-too-hot-hd-4870-a.html)

Yamcha February 21, 2009 12:38 PM

Whats too hot for a HD 4870?
Hi guys,

Im wondering whats too hot for a HD 4870? Mines at 100% Fan speed is 52C at Load using ATI Tool. Im think about overclocking.. so I was wondering what temp should I keep it under..

Thanks for your time! :biggrin:

cadaveca February 21, 2009 12:43 PM

Heh mine idle @ 52c/54c...I'm sure you have alot of headroom there. AFAIK, up to like 90c is ok, as long as you aren't overvolting.

Jake_HT February 21, 2009 12:47 PM

Yeah 90c is getting up there. Aim for 70's load if you can.. 80's is warm.. over 90 is too hot.

I think someone on here had 2 of those in crossfire and had heat problems and was running over 110c and one burned out on him..


magictorch February 21, 2009 01:44 PM

Some might disagree but you should use GPUZ and look at the VDDC slave temps-and try and keep those below 100oc. As for the cores and mem you should be able to get 50oc load with ~35% fan in a well ventilated case.

gingerbee February 21, 2009 01:56 PM

50c load in good case i don't think so. my sonic 4870 is in a haf cooler master case with a good heat sink on it in a room that ambient is 22 to 25 c and it is always above 50c

gingerbee February 21, 2009 01:57 PM

room temp right now 23.6 and gpu is 50 and shader is 45

magictorch February 21, 2009 02:28 PM

Your ambient's are a little higher than mine. But when I was using 2 cards with the stock sinks during gaming (Crysis), they never got much more than low 50's at 35% fan. ATI tool tends to push a bit harder but they still held under 60 on the cores ie. ~50oc.

DarKStar February 21, 2009 03:11 PM

To be safe check the specific thermal specs for a given card - despite what its rated at, it is never a good thing to run a card close to its limits at all times - Some say keep it below 100C, I think 100C is too hot and normally you should not reach that - so to me the magic number is 80~85C TOPS, I use an NVIDIA card btw, an OCed 8800GT and under torture testing has never gone above 82C, maybe 85C at extremes. Your temps in your post are nothing to worry about you are well within the specs, unlike CPU, the thermal ratings are much higher so you are fine. Keep it no more than 80~85C and you should be fine - of course the cooler the better, that goes for any electronic component !

NightRain February 21, 2009 03:27 PM

110C is too much at full load... 100C is fine and normal.

Yamcha February 21, 2009 04:22 PM

I guess I don't have to worry, because even with 40% Fan, Load is 65C..

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