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EK waterblock but bear mind that you need 3-4 exactly the same gpus to watercool them at once.

http://www.amazon.com/EVGA-GeForce-384- ... tx+780+6gb

I have two of those cards already in my current machine. Are you talking about buying them used?

If this is not a problem for you...

That's fine. I was wondering if you knew of a new source for them.

So, about watercooling... I've never installed any. My computer has a few self-contained WC components, but that's it. How would I go about learning all the parts I need and how to set them up?

Lastly, on my current system, I have (2) 780s and a 650. I use the 650 for displays, and the 780s for render. Would it make sense to replace the 650 with a 780 so I could WC them all, using one of them for display?

Yes - go with 4x780 6gb. For WC advice read my build log. The rest is on youtube and overclock forum.

Ok, reviewing your list from earlier...

2x D5 PWM pumps with tops
1x reservoir
2x480 radiators
20 120mm fans
fittings
tubing
temp sensor
controller
waterblocks and backplates

Really... 20 fans?

In the first three lines, it looks to be about $700. Does that sound right? I'm not sure what the rest of the items are in order to look them up. Here's what I have so far. Am I close?

http://www.amazon.com/EK-XRES-incl-Perf ... 391&sr=1-1

http://www.amazon.com/EK-MultiOption-RE ... 37&sr=1-28

http://www.amazon.com/EK-CoolStream-Rad ... 0+radiator

Hi guys. I have 3x titans and 1x titan X.

I am getting 90 degree temps for my titans whilst using octane...is this safe? I am using CPUID HW monitor.

Thanks

safe anough, but get better fans if noise isn't a problem, tune a lot of airflow through Your case. if that is not going to help, manually set lower temperature target & it should be fine =) but You start loosing render performance. Watercooling is another option..

glimpse wrote:safe anough, but get better fans if noise isn't a problem, tune a lot of airflow through Your case. if that is not going to help, manually set lower temperature target & it should be fine =) but You start loosing render performance. Watercooling is another option..

Hi

Thanks for replying

Ok. So 90 should be ok temps. Performance at the moment is great so I dont want to touch the gpu settings etc.

They make a fair bit of noise but I really dont care. Noise isolating headphones covers that.

I will look into getting some more fans to put inside my case. I have 750D Corsair Case. Can you recommend me any decent fans?

Thanks

This may help