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GPU 2 runs Hotter than gpu 1

Tags:
  • Gtx
  • GPUs
  • Cooling
  • Thermal Compound
  • Graphics
Last response: in Graphics & Displays
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September 30, 2014 9:15:47 AM

So I ordered a new cooler for my gtx 690( the accelero twin turbo 690) and I have noticed that gpu 2 (The main gpu) runs hotter than gpu 1. First I thought it was because of me not applying the thermal paste correctly so I just reapplyed the mx4,but the secound gpu still runs 10C hotter than the first. That in a open case so the airflow is not the problem. I do have to mention that gpu 2 runs at a little higher clock but it should't give me more than 5C difference. So any ideas?

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September 30, 2014 9:18:52 AM

Why do you run the second GPU at higher clocks? That is not recommended at all for SLI/Xfire, and your GTX690 has onboard SLI. Doing so can cause stability issues and/or stuttering in game. This is most likely the cause of the extra heat as well.
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September 30, 2014 9:34:52 AM

Since the 690 is a single card with two GPU's the position of the chip on the board will also effect heat. One of them is always going to be a bit hotter due to the position on the board. If you were OCing the GPU that was naturally going to be in the hottest position then it would get even hotter.
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September 30, 2014 9:39:03 AM

sincreator said:
Why do you run the second GPU at higher clocks? That is not recommended at all for SLI/Xfire, and your GTX690 has onboard SLI. Doing so can cause stability issues and/or stuttering in game. This is most likely the cause of the extra heat as well.


The main gpu is factory made to run a little bit faster than the secound one.
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September 30, 2014 9:40:32 AM

caqde said:
Since the 690 is a single card with two GPU's the position of the chip on the board will also effect heat. One of them is always going to be a bit hotter due to the position on the board. If you were OCing the GPU that was naturally going to be in the hottest position then it would get even hotter.


So you're telling me that the main gpu will run hotter than the other one no matter what?
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September 30, 2014 9:58:15 AM

yordan159753 said:
caqde said:
Since the 690 is a single card with two GPU's the position of the chip on the board will also effect heat. One of them is always going to be a bit hotter due to the position on the board. If you were OCing the GPU that was naturally going to be in the hottest position then it would get even hotter.


So you're telling me that the main gpu will run hotter than the other one no matter what?


Due to the way heat radiates around the case yes one of them is always going to get hotter because of their proximity to one another. The heat is going to spread from one to the other making one of the chips just a bit hotter than the other. Which chip this is would depend on how the air is moving in the case.
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September 30, 2014 10:00:53 AM

Sounds like the two GPUs come from different OEMs, hence why the factory clock speeds are different. If both cards are from different OEMs, they'll also have different cooling arrangements.

The higher clock speed and different cooling arrangement are the reasons why the temperature is different. It's completely normal.
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September 30, 2014 10:03:01 AM

caqde said:
yordan159753 said:
caqde said:
Since the 690 is a single card with two GPU's the position of the chip on the board will also effect heat. One of them is always going to be a bit hotter due to the position on the board. If you were OCing the GPU that was naturally going to be in the hottest position then it would get even hotter.


So you're telling me that the main gpu will run hotter than the other one no matter what?


Due to the way heat radiates around the case yes one of them is always going to get hotter because of their proximity to one another. The heat is going to spread from one to the other making one of the chips just a bit hotter than the other. Which chip this is would depend on how the air is moving in the case.

Well 10-12C a big difference. Not shure if I got a bad cooler.

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September 30, 2014 10:05:22 AM

bicycle_repair_man said:
Sounds like the two GPUs come from different OEMs, hence why the factory clock speeds are different. If both cards are from different OEMs, they'll also have different cooling arrangements.

The higher clock speed and different cooling arrangement are the reasons why the temperature is different. It's completely normal.


The factory speed of all 690's is a little higher on the main gpu, but having this huge difference of 10-12C doesn't look normal.
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September 30, 2014 10:10:26 AM

The difference in temperature is relative and dependent on all the factors above; OEM, cooling arrangement, proximity of GPUs and airflow. You may think that 10-12C is a big difference, but it could be perfectly normal for that GPU in those circumstances.

The important factor is that the temperature doesn't reach dangerous levels. Anything beyond 80C should be cause for concern.
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