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6970 gpu-z temp readings question

post #1 of 22
Thread Starter 
Im trying to work out a good fan curve for Afterburner using Heaven benchmark and GPU-Z.
After about 15 min in Heaven my GPU temp reads at max 74c at 53% fan speed, which I am very happy with.

BUT!

In GPU-Z there are not one, but five different temperature readings:
(these are the max temps reached in the heaven run)

GPU Temperature: 74 smile.gif
GPU Temp #1: 74.5 smile.gif
GPU Temp #2: 87 mad.gif
GPU Temp #3 74.5 smile.gif
Vreg Temperature: 46.3 biggrin.gif

The first two readings are almost always identical so I'm guessing these are the gpu chip itself. I know Vreg is to do with the voltage part of things.

Now my question is... Is it normal for there to be a difference of 13c between temps 1 and 3. Also what area of the gpu is each reading coming from? Should i be concerned about temp #2 as much as #1?

Clocks are identicle to my sig rig btw.

Thanks for any help thumb.gif
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post #2 of 22
Are you running a Crossfire setup?
post #3 of 22
Thread Starter 
Quote:
Originally Posted by MercurySteam View Post

Are you running a Crossfire setup?

Nope just the one.
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post #4 of 22
I'm running one 6950 that gets max 60c while gaming, but I don't know how heavy Heaven is and what the HD6970 is used to do. The sensor reader could also be wrong. The temps is what I think pretty high. If you disable the overclock, what are the temps then?
Edited by battleaxe231 - 4/19/12 at 11:31am
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post #5 of 22
Thread Starter 
Quote:
Originally Posted by battleaxe231 View Post

I'm running one 6950 that gets max 60c while gaming, but I don't know how heavy Heaven is and what the HD6970 is used to do. The sensor reader could also be wrong. The temps is what I think pretty high. If you disable the overclock, what are the temps then?

Yes Heaven is quite a demanding benchmark that constantly has my GPU working 100%. Stock temps are 72, 71.5, 81.5, 72 after 15 mins on my custom fan profile at 52% max. Stock fan profile is useless. It will see my card at 90 before it goes past 50%.

This again shows the temp #2 10c higher than the rest. Someones got to know what the different areas are. Can someone with a 6970 please check if their readings are similar? Thanks

EDIT: Did a completely stock run (including stock fan profile)
Here are the temps after 15 min Heaven:

GPU Temperature: 80
GPU Temp #1: 80.5
GPU Temp #2: 90
GPU Temp #3 82
Vreg Temperature: 46.9

Max fan speed got to 36%
Edited by chalamah - 4/19/12 at 4:37pm
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post #6 of 22
That looks pretty hot to me, you might want to look for a aftermarket cooler on the gpu, but I'm not sure, since I don't have a 6970 myself. mellowsmiley.gif

Please, someone with a HD6970, help this guy out! helpinghand.gif
Edited by battleaxe231 - 4/20/12 at 5:24am
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post #7 of 22
Do you have a reference cooler? Or a custom one?

I have a custom one ('coolstream'). When im benchmarking or using the GPU in BF3, 98-99% usage I get temps around 60C max. I do have a aggresive fan profile, with fan speed topping at 60%.

Overclocked 950/1450 on 1.20V.

I see u have 1.23V, cant u try to lower it to 1.2V and use a bit more agressive fan profile in MSI afterburner. Maybe that helps.
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post #8 of 22
Thread Starter 
Quote:
Originally Posted by JuliusCivilis View Post

Do you have a reference cooler? Or a custom one?
I have a custom one ('coolstream'). When im benchmarking or using the GPU in BF3, 98-99% usage I get temps around 60C max. I do have a aggresive fan profile, with fan speed topping at 60%.
Overclocked 950/1450 on 1.20V.
I see u have 1.23V, cant u try to lower it to 1.2V and use a bit more agressive fan profile in MSI afterburner. Maybe that helps.

I have the reference cooler. I was looking into getting a custom cooler a while back but they cost so much in New Zealand. Anything below 1.23v seems to be not enough for 950 core so i may need to settle for less for now. Does less heat mean less Vs required?

What does your Temp # 2 read in GPU-z compared to other temps (under load)?
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post #9 of 22
Thread Starter 
Doing some searching around the web I found that people with similar problems have just reapplied the TIM and that has fixed it. I also read that using the wrong TIM could be damaging (to do with being conductive and non conductive).

I used AS5 for my CPU. Will this be OK for use on a GPU? I assume it will be fine but just want to make sure before i go ahead with this.

Thanks
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post #10 of 22
As far as fan speed profiles go I have mine set to a pretty aggressive 1% for 1 degree C. It works pretty good for my 6970's in Xfire. Max temp I've ever seen after an extended gaming session was 69C, which was Crysis 2 maxed.

I dont even bother overclocking my cards as you will only see 6% performance gain max, usually. I am also running reference cooling.

I have never watched my temps in GPU-z to notice your phenomenon but I'll try it out and see what I get.
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