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EK-FC Bridge TRIPLE Parallel CSQ, GPU temperature spikes, What I've done wrong

post #1 of 6
Thread Starter 
I guess a picture is better than 1000000 words here



the original red direction is from EK installation manual, I had my tube follow this route the first time, but I did it so ugly, however temperature is about 50C on 100% load.....
and one day I read the installation again, it says that
Quote:
PLEASE NOTE
Ports can be exchanged, meaning inlet can be used as outlet and at the same time outlet can be used as inlet

So I redo the tubing (Green arrow), but now the temperature spike to 70C as soon as the GPU 100% load, (I close the program immediately, so I think it can still go up)

the black box area is a EK stopper, I only use the top two slots, the last bottom one is empty, I have to seal it.

My guess is I short cut the water flow, so it doesn't actually run through GPUs. because it's acetal I can't tell.
Am I misunderstanding the meaning of what I quoted? OR
I shouldn't seal the last slot, instead I should seal the first slot if I follow the green arrow route?

the idle temperature now is still 31C and 35C

oh, forget some information about my cards

two 7970 with EK-VGA Supremacy Bridge Edition - Acetal
I also put the copper adapter between the water block and the GPU core.

I applied some Arctic G1 between copper adapter and GPU core,
some MX-2 between copper adapter and waterblock

help is really appreciated, thanks.
post #2 of 6
Quote:
Originally Posted by ryantc View Post

I guess a picture is better than 1000000 words here



the original red direction is from EK installation manual, I had my tube follow this route the first time, but I did it so ugly, however temperature is about 50C on 100% load.....
and one day I read the installation again, it says that
So I redo the tubing (Green arrow), but now the temperature spike to 70C as soon as the GPU 100% load, (I close the program immediately, so I think it can still go up)

the black box area is a EK stopper, I only use the top two slots, the last bottom one is empty, I have to seal it.

My guess is I short cut the water flow, so it doesn't actually run through GPUs. because it's acetal I can't tell.
Am I misunderstanding the meaning of what I quoted? OR
I shouldn't seal the last slot, instead I should seal the first slot if I follow the green arrow route?

the idle temperature now is still 31C and 35C

oh, forget some information about my cards

two 7970 with EK-VGA Supremacy Bridge Edition - Acetal
I also put the copper adapter between the water block and the GPU core.

I applied some Arctic G1 between copper adapter and GPU core,
some MX-2 between copper adapter and waterblock

help is really appreciated, thanks.

Interesting problem you've got there. I think you answered your own question smile.gif The blank causes most of the flow to bypass the other two GPU's. Moving the blank to the first slot, as you mentioned, is what I would try too.
post #3 of 6
I think the bigger issue is that you have insufficient flow rate.

What is happening is that you have one inlet that splits into n channels. In each of these n channels will have 1/n of the inlet flow rate.

I would make sure that you have the EK Blank Parallel version (which you most likely do since you refer to it as a 'stopper.') There is an EK Blank Serial version which allows flow through the two ports.

If the blank checks out, you might need to consider getting an additional pump and putting that in parallel with your current one.
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post #4 of 6
How did you 'seal' the extra holes?
If you just used some tape it might not be air tight and lose pressure resulting in terrible flow.

Sent from my R800i using Tapatalk 2
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post #5 of 6
Quote:
Originally Posted by amputate View Post

How did you 'seal' the extra holes?
If you just used some tape it might not be air tight and lose pressure resulting in terrible flow.

Sent from my R800i using Tapatalk 2

He is using "the black box area is a EK stopper."
post #6 of 6
Thread Starter 
Thanks for all your inputs.

the proper name for the seal, or stopper is called EK-FC Link BLANK Parallel CSQ,
Quote:
EK-FC Link BLANK Parallel CSQ is a drum plated stainless steel plate for closing unused ports on your EK-FC Bridge Parallel CSQ series interconnect
It's an "official" seal that used to close any unused slot.

today, I just open up the two water blocks, glad to see there is water inside, so I didn't have a shot cut
I also find the top one is a little clogged, I thing this might be the cause, so water won't exit quick enough.

but I just try to avoid another failure I just follow the red arrow direction and reroute some tubes again.
now this time everything works fine. with idle/full load @ 30/45

and this time tubing is much better than the first time biggrin.gif,
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