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GTX TITAN SLI watercooled question

post #1 of 8
Thread Starter 
I've 2 TITAN in SLI watercooled with EK-FC Titan waterblocks + FC Titan Backplate.

They are linked with a parallel setup.
from what i know with parallel setup the temperature of the gpus is supposed to be the same.

my Titans show a difference of about 6° C when they are in full load...




is this normal or is it better for me to check the waterblock contact on the hotter gpu?
post #2 of 8
I had this exact same problem and it was because I had air stuck inside one of the GPU blocks
post #3 of 8
You card with the monitor attached will run a couple of degrees warmer. I have 3 680's in parallel and the top card is always warmer than the other 2.

At Idle they will be within a degree or 2 of each other, it's under full load when you see the temp difference.
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Slides Dream
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by joesaiditstrue View Post

I had this exact same problem and it was because I had air stuck inside one of the GPU blocks

thank you for the suggestion but i don't think i have air in the block 'cause they are plexy version and i can see inside them, they are full of liquid smile.gif

Quote:
Originally Posted by SlideRulz View Post

You card with the monitor attached will run a couple of degrees warmer. I have 3 680's in parallel and the top card is always warmer than the other 2.

At Idle they will be within a degree or 2 of each other, it's under full load when you see the temp difference.

ok, so i can try to connect the second gpu (which is colder) to the monitors (i have 2 monitors) and re-test for see if there is any differences, right?
post #5 of 8
Quote:
ok, so i can try to connect the second gpu (which is colder) to the monitors (i have 2 monitors) and re-test for see if there is any differences, right?

the primary gpu will always run hotter than the secondary card, but the difference should be 2-3'C maximum, when you're seeing 8'C difference it's usually something else like air (which you have already checked), or a not-so-perfect mount when you installed the waterblock
post #6 of 8
Thread Starter 
Quote:
Originally Posted by joesaiditstrue View Post

the primary gpu will always run hotter than the secondary card, but the difference should be 2-3'C maximum, when you're seeing 8'C difference it's usually something else like air (which you have already checked), or a not-so-perfect mount when you installed the waterblock

ok, so i'm going to check the waterblock mounts smile.gif

by the way as you can see from my screenshot the difference of maximum temp between gpus is 5°C, not 8°C biggrin.gif
post #7 of 8
5°C is normal difference, first card always runs hotter as is it the master while other are slaves even though in theory all should do the same workload. Pretty much the same as AMD CrossFire.
    
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post #8 of 8
Thread Starter 
re-applied tim on the warmer gpu and linked them with a serial configuration:




now temps are right! thumb.gif
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