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Asus 6950 goes INSTANTLY to 100 °C when starting any 3D Game

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September 20, 2012 6:21:42 PM

HI!

First... Sorry for my bad English (I'm from finlan ;)  )

I built a new computer couple of weeks ago. I haven't had any problems with it until today. I played WoW when Smart Doctor (Program from Asus.com to control speed of the GPU's fans Etc.) prompted me with a message: VGA overheating (it was about 100 °C. I first thought it was problem with WoW, because it was first time I have played it with this computer. I tested some other games that I had played before (crysis 2, mafia 2) but they caused the same problem too. Then i notices something weird on GPU-Z. One of the 3 GPU tempratures is almost 50% lower the others :o  . Here are some pictures

Without any game running:
http://farm9.staticflickr.com/8313/8006767019_17e7be8bf...


Game running:
http://farm9.staticflickr.com/8435/8006766319_609fe68ac...


Is it normal that those temperatures have so great differences? Are the temperature readings wrong?
The games that I have played don't crash or anything... (in fact for example WoW runs on max setting with good FPS)
I don't have a clue what is going on... Any help?
Thanks in advance

I should have the latest drivers updated.

Here are my system specs:

> Mainboard : ASUSTeK COMPUTER INC. P8Z77-V

> Processor : Intel Core i7 3770K @ 3500 MHz

> Physical Memory : 16384 MB (2 x 8192 DDR3-SDRAM )

> Video Card : Asus HD 6950 2GB

> Hard Disk (os) : INTEL SSDSC2CT120A3 ATA Device (120GB)

> Hard Disk : Western Digital WD20EARX-00PASB0 ATA Device (2000GB)

> DVD-Rom Drive : Toshiba-Samsung DVDWBD SH-B123L

> Operating System : Windows 7 Ultimate Professional Media Center 6.01.7601 Service Pack 1 (64-bit)

> DirectX : Version 11.00

> Power supply: Corsain 600W
September 20, 2012 6:49:31 PM

Well, for one thing - I don't think a 600W power supply is enough for a tri-GPU setup.

But to your question - 100C temps are very, very bad. Did you sandwich all your GPUs together? My guess is that you stuck the cards together without any space between them so that they all crap heat all over one another and can't stay cool.

The only things you can do in that case:
-Set their fan speeds to 100% and see if that helps
-Get a couple side fans blowing air down on them

If you have no space between any of the cards, I recommend switching to a motherboard that will let you space them out or better yet just sell one or more of your cards and upgrade to a one or two-GPU setup.
a b U Graphics card
September 20, 2012 6:50:17 PM

have you considered turning up the fan speed past 53%

can you add a case fan to the side of the case that points toward the gpu?

validate the temp with Asus Smart Doctor

what is Asus SmartDoctor? ASUS Smart Doctor version 5.80
Smart Doctor provides 3 major features:
1. VGA card information and running status for GPU temperature, GPU fan speed(optional) and so on.
2. Overclocking feature.
3. GPU temperature detection.
If your VGA card supports Smart Doctor, after the installation of Smart Doctor (Don't forget to install VGA driver and ASUS GamerOSD), you will have both 3 features.
Please be noted that SmartDoctor can't be applied to ASUS R.O.G series graphics cards. For ASUS R.O.G series graphics cards, please install iTracker instead. Click here for R.O.G graphics cards list.
Related resources
September 20, 2012 6:51:51 PM

Didn't see that the fan speed was low - you definitely need to turn that up. You need to get a program like MSI Afterburner and set a fan profile so that your GPU fans ramp up once the GPUs pass 70C or so.

Also, you can underclock/undervolt the cards to deal with heat too. Undervolting will help heat a lot and can be done with MSI Afterburner.
a b U Graphics card
September 20, 2012 6:52:10 PM

my HD 6950 idles: 40c and load: 55-60C on Ultra settings in BF3 and Sleeping Dogs Maxed
September 20, 2012 6:53:03 PM

I had the same problem. I bet that you don't have enough airflow in the video card area of the motherboard. Try adding an extra fan to clear the hot air, especially if your Radeon 6950 recirculates the hot air back into the case.

Hope this helps,

AoN
September 20, 2012 7:59:02 PM

My case is open right now, so i doubt that airflow would be concern.

When I let Asus smart doctor to control the fans:
Without game:


With game on:


So smart doctor says that its 101°C while the fans are 100%. I uninstalled smart doctor to test MSI Afterburner:
The result is the same... It shows 102°C while game is on. I noticed that the fan jumps from 100% to 50% and back while gaming. would that refer to a power problem?



The GPU heats up really fast... To 100*C in about 3-5 seconds

Thanks for your replies!!

a c 191 U Graphics card
September 20, 2012 8:05:00 PM

Have you tried to see if there is any dust in your card?

My 6950 on like 80% fan in my Antec Sonata (no airflow, hence my 460) would get up to 85C. There's definitely something wrong.
a c 108 U Graphics card
September 20, 2012 8:06:56 PM

I am willing to be you have a heatsink contact issue.

So in the factory either they did not use the right amount of paste(too much or little can cause this)

OR

The heatsink did not make full contact with the card.

Best to contact Asus about this, a card should not get that hot that fast in an open case.

Ohh and the VGA 3 temp may be a board or regulator temp. Those are cooled by air from the fan so even if the heatsink contact sucks, they will still be ok(have lower temps).

You also notice that the card clocks down(500mhz) when it gets that hot too.

@Deemo13, Ahh Antec Sonata case. such bad air flow(too little intake vent). :)  and yet I still have 2(Sonata and Sonata 2). Those cases are built like a tank. My Fractal Define R2 is more quiet, but not nearly as strongly built.
September 20, 2012 8:08:39 PM

Just to clear myself...
I have only 1 CPU and those tree temperatures on GPU-Z are from it. (From 3 different locations i guess)
September 20, 2012 8:12:27 PM

nukemaster said:
I am willing to be you have a heatsink contact issue.

So in the factory either they did not use the right amount of paste(too much or little can cause this)

OR

The heatsink did not make full contact with the card.

Best to contact Asus about this, a card should not get that hot that fast in an open case.

Ohh and the VGA 3 temp may be a board or regulator temp. Those are cooled by air from the fan so even if the heatsink contact sucks, they will still be ok(have lower temps).



I completely agree. Even if the cards are sandwiched, these are crazy temps especially when you say these intantly jack up to 100 as soon as you start a game.

EDIT --> Just saw your post above mine. Even though you clarified it's only 1 GPU, I still believe it's heatsink problem
a c 191 U Graphics card
September 20, 2012 8:14:07 PM

nukemaster said:
I am willing to be you have a heatsink contact issue.

So in the factory either they did not use the right amount of paste(too much or little can cause this)

OR

The heatsink did not make full contact with the card.

Best to contact Asus about this, a card should not get that hot that fast in an open case.

Ohh and the VGA 3 temp may be a board or regulator temp. Those are cooled by air from the fan so even if the heatsink contact sucks, they will still be ok(have lower temps).

You also notice that the card clocks down(500mhz) when it gets that hot too.


That's actually a pretty good call.
a c 108 U Graphics card
September 20, 2012 8:15:35 PM

Awww and after I edited to say how much I actually liked the Antec Sonata case :) 
September 20, 2012 8:18:49 PM

nukemaster said:
I am willing to be you have a heatsink contact issue.

So in the factory either they did not use the right amount of paste(too much or little can cause this)

OR

The heatsink did not make full contact with the card.

Best to contact Asus about this, a card should not get that hot that fast in an open case.

Ohh and the VGA 3 temp may be a board or regulator temp. Those are cooled by air from the fan so even if the heatsink contact sucks, they will still be ok(have lower temps).


Thanks for your reply!
If this thing isn't solved in this week I will take GPU to verkkokauppa.com (i bought it from there). They will contact ASUS and do all the work for me. They have great customer support. Last time i had problems with my Motherboard they fixed it in a day. I was just thinking if this is something i could fix myself. I'm sick so I don't get to Verkkokauppa right now.
September 20, 2012 8:36:15 PM

Is there any change the temperature readings are actually false?
a c 191 U Graphics card
September 20, 2012 8:40:40 PM

nukemaster said:
Awww and after I edited to say how much I actually liked the Antec Sonata case :) 


I didn't notice it!

I got the Sonata case because I really like the design, and it is built like a tank. The inside also looks really good if you have it well done. It looks really clean with my H60 watercooler. I've also got a fan controller for the 3 fans I have (I had 2 with my 6950)
September 20, 2012 8:50:41 PM

esewese said:
Is there any change the temperature readings are actually false?


I would say there is no chance. You tried two different pieces of software and both gave you high readings. Also, I don't think the readings are bad since the idle temps look ok to me
September 20, 2012 8:56:03 PM

If CPU is over 100 °C should I feel at least some heat when i put my hand right next to it? Now I'm feeling just mid-cold ventilating air.
a c 84 U Graphics card
September 20, 2012 8:59:48 PM

esewese said:
If CPU is over 100 °C should I feel at least some heat when i put my hand right next to it? Now I'm feeling just mid-cold ventilating air.

well if the heatsink isnt making proper contact with the chip there won't be much heat that gets blown away in the first place... If it was working properly the air would be warm.
September 20, 2012 9:01:26 PM

esewese said:
If CPU is over 100 °C should I feel at least some heat when i put my hand right next to it? Now I'm feeling just mid-cold ventilating air.


No that's the problem. You SHOULD be feeling warm air if the GPU processor was trasmitting the heat from the heatsink to the ambient air properly.

EDIT --> +1 to Kari. Just saw his post.
a c 108 U Graphics card
September 20, 2012 9:17:52 PM

esewese said:
Thanks for your reply!
If this thing isn't solved in this week I will take GPU to verkkokauppa.com (i bought it from there). They will contact ASUS and do all the work for me. They have great customer support. Last time i had problems with my Motherboard they fixed it in a day. I was just thinking if this is something i could fix myself. I'm sick so I don't get to Verkkokauppa right now.

Fixing it(Swap thermal paste or reposition the heatsink if it was not screwed down right) would void the warranty and not even give a 100% chance of success. At lease verkkokauppa.com will fix you up and retain your warranty.

As other have said above, you should feel some real hot air coming from the card.
!