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High temps Gpu-z - 6970 Crossfire

post #1 of 8
Thread Starter 
Just finished the new build here. ATM im running 2x6970's in CF watercooled with the Koolance VID-AR697.

I noticed that the some of the GPU Temps in gpu-z is a bit high on the one card.

Card 1 (Idle/load):
GPU Temps #1 37.5 / 54.0
GPU Temps #2 49.0 / 83.0
GPU Temps #3 53.0 / 92.0
VReg Temp 50.2

Card 2 (Idle/load):
GPU Temps #1 29.5 / 49.0
GPU Temps #2 30.0 / 62.5
GPU Temps #3 32.5 / 68.0
VReg Temp 51.3

Stress test is with FurMark.

Dont know if which card is which, but i assume that it is the top card is Card 1 considering that i have plugged my monitors into that card and the fact that that card is showing up Mem Usage and trottling a bit higher than the other during idle (250 vs 500MHz)

The fact that Gpu Temp #2 / #3 is 30c and 40c higher than #1 on Card 1 worries me abit, i also think that 19c between #1 and #3 @ Card 2 is a bit much. There is a lot of air in my loop that im trying to bleed out so could it be that there is a large air buble stuck in the block?
post #2 of 8
on my system, the 3rd card is the main card(the top card)
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post #3 of 8
If the clocks are higher on card one then it's probably the primary card since they idle at higher clocks on multi-screen setups. But I would have to say it is probably pretty unlikely that it is a bubble given the layout of the blocks. I would have to guess that it is far more likely to be a mounting issue with the cards, probably on the VRMs or something since I am quite sure that GPU #2 and #3 refers to components on the board.
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i7 4790K 4.8GHz @ 1.306v (Actual) ASUS Maximus VII Gene Gigabyte GTX 780 Galaxy GTX 780 
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16GB G.Skill Ares (4x4GB @ 1866MHz OC'd to 2133) Samsung 840 Evo 500GB WD Black 2.5" 750GB EK Supremacy EVO Acetal 
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Aquacool NeXXos UT60 240mm Radiator EK XE 360 Radiator x 2 EK-FC780 GTX Ti Acetal /w Backplate and Reinfor... 8 x EK Vardar F4 
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EK MOSFET ASUS M7G Acetal Nickel Windows 8 x64 Pro Dell U2711 (2560*1440) Dell P2715q 
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by DirektEffekt View Post
If the clocks are higher on card one then it's probably the primary card since they idle at higher clocks on multi-screen setups.
That was what i thought aswell
Quote:
Originally Posted by DirektEffekt View Post
But I would have to say it is probably pretty unlikely that it is a bubble given the layout of the blocks. I would have to guess that it is far more likely to be a mounting issue with the cards, probably on the VRMs or something since I am quite sure that GPU #2 and #3 refers to components on the board.
I have read a couple of places that Temps #1/#2/#3 is core/shader/mem controller.

i hate to take apart loops when it's just finnished. I'm getting a 3'rd card that im also putting under water most likely next Saturday. Would it be a risk to the card to leave it like it is now untill then? I wont be doing any stress testing and probably game a total of 7 hours untill then.
post #5 of 8
Well, while 90 is hot, I wouldn't think it would cause any damage in a normal situation, video cards can take a lot of heat! But that said, if there is a 40c difference between different parts of the core I don't know what kind of effect that would have if those temps represent core/shader/mem controller. If it were me though I would be getting it fixed ASAP. I would be kind of worried about a 40c difference across the same piece of silicon. It could mean that at another point it is even hotter!
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16GB G.Skill Ares (4x4GB @ 1866MHz OC'd to 2133) Samsung 840 Evo 500GB WD Black 2.5" 750GB EK Supremacy EVO Acetal 
CoolingCoolingCoolingCooling
Aquacool NeXXos UT60 240mm Radiator EK XE 360 Radiator x 2 EK-FC780 GTX Ti Acetal /w Backplate and Reinfor... 8 x EK Vardar F4 
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16GB G.Skill Ares (4x4GB @ 1866MHz OC'd to 2133) Samsung 840 Evo 500GB WD Black 2.5" 750GB EK Supremacy EVO Acetal 
CoolingCoolingCoolingCooling
Aquacool NeXXos UT60 240mm Radiator EK XE 360 Radiator x 2 EK-FC780 GTX Ti Acetal /w Backplate and Reinfor... 8 x EK Vardar F4 
CoolingOSMonitorMonitor
EK MOSFET ASUS M7G Acetal Nickel Windows 8 x64 Pro Dell U2711 (2560*1440) Dell P2715q 
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by DirektEffekt View Post
Well, while 90 is hot, I wouldn't think it would cause any damage in a normal situation, video cards can take a lot of heat! But that said, if there is a 40c difference between different parts of the core I don't know what kind of effect that would have if those temps represent core/shader/mem controller. If it were me though I would be getting it fixed ASAP. I would be kind of worried about a 40c difference across the same piece of silicon. It could mean that at another point it is even hotter!
Could be, i do find it strange that the mem controller would get so hot in a stress test that dont use any VRAM.
post #7 of 8
Quote:
Originally Posted by Eggy88 View Post
Could be, i do find it strange that the mem controller would get so hot in a stress test that dont use any VRAM.
If the watercooling is the new setup, you'll have to bleed the air bubbles out from the loop by tilting it around to speed up the process. This will lower the temperature tremendously.

Card 1 (Idle/load):
GPU Temps #1 37.5 / 54.0
GPU Temps #2 49.0 / 83.0
GPU Temps #3 53.0 / 92.0
VReg Temp 50.2

Card 2 (Idle/load):
GPU Temps #1 29.5 / 49.0
GPU Temps #2 30.0 / 62.5
GPU Temps #3 32.5 / 68.0
VReg Temp 51.3


Looking at the temperature disparity card 1 & 2, would be a good idea to the block apart and check the GPU Core contact with the waterbloack. You should not see the difference of more than 5-8°C (temp #1, #2 & #3).
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ケンジ
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120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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post #8 of 8
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post
If the watercooling is the new setup, you'll have to bleed the air bubbles out from the loop by tilting it around to speed up the process. This will lower the temperature tremendously.

Card 1 (Idle/load):
GPU Temps #1 37.5 / 54.0
GPU Temps #2 49.0 / 83.0
GPU Temps #3 53.0 / 92.0
VReg Temp 50.2

Card 2 (Idle/load):
GPU Temps #1 29.5 / 49.0
GPU Temps #2 30.0 / 62.5
GPU Temps #3 32.5 / 68.0
VReg Temp 51.3


Looking at the temperature disparity card 1 & 2, would be a good idea to the block apart and check the GPU Core contact with the waterbloack. You should not see the difference of more than 5-8°C (temp #1, #2 & #3).
Ok, i'll try to get the time to take the loop apart on Wednesday.
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