Water cooling a Palit Jetstream 1080Ti

edbovill

Prominent
Aug 14, 2017
2
0
510
Hi, I'm looking for some advice when it comes to water cooling my Palit Jetstream 1080 Ti. I've recently started overclocking this card, and it does really well, reaching a 150MHz overclock on the core and 500MHz on the memory easily. However, this means that the card now regularly reaches 76C +, and is definitely thermally throttling.

I'd really like to water cool this card to improve on the thermals, and also reduce GPU fan noise. I think there are basically two options, AIO cooling with a bracket like the NZXT G12, or full custom loop cooling. However, I need some advice on both counts:

AIO Cooling Option:

I'm looking to use the NZXT G12 bracket and the NZXT X64 cooler, with some VRM heatsinks for good measure:
https://www.overclockers.co.uk/nzxt-graphics-card-cooling-bundle-kraken-x62-kraken-g12-cpu-adapter-white-bu-00m-nx.html
https://www.overclockers.co.uk/watercool-passive-cooler-for-vga-ram-12-pack-hs-001-wc.html

However, there is no mention if the G12 is compatible with this particular GPU as it's a non-reference design board. Does anyone have any idea as to whether this would fit? Also, would the VRM heatsinks be enough to keep the memory cool when paired with the 96mm fan in the G12 bracket ? I have lots of fans in my full tower case (Phanteks Enthoo Luxe) so airflow is pretty good.

Custom Water cooling Loop Option:

There are no EKWB full cover water blocks for this card (why did you buy this card you ask? Price is my answer, though there are now some ragrets!), therefore I'd need to use a Alphacool waterblock:

https://www.aquatuning.co.uk/water-cooling/gpu-water-blocks/gpu-full-cover/22305/alphacool-nexxxos-gpx-nvidia-geforce-gtx-1080ti-m17-incl.-backplate-black

I'd incorporate this into a EKWB kit like the P360: https://www.ekwb.com/shop/ek-kit-p360, which I feel would be plenty for this loop with the triple radiator.

My concerns are that the Alphacool block might not play well with the EKWB kit (I'd use an EKWB block if they sold a full cover one - I've asked and they have no plans to make one!). Would I be able to find adaptors to enable the use of the soft tubing that comes with the kit, and would there be any issues with mixing metals (it looks like it's all copper though).

Summary

The AIO option would be my preferred option to keep costs down, as I already have a beefy CPU AIO (Corsair H110i), so a custom loop would be replacing a working CPU cooler, also I'm new to custom water cooling and I'm a bit hesitant.

Any help would be much appreciated! Any other potential solutions would be greatly appreciated!



 
My advice:
Save your money and apply it to the next generation of stronger graphics cards when they come out.

I am surprised at throttling at 76c. I think such cards target about 80c for maximum performance.

What is your case?
What is your cpu?
How important is a maximum overclock of cpu or gpu to your needs?
 

edbovill

Prominent
Aug 14, 2017
2
0
510
My full system specs are:

Case: Phanteks Enthoo Luxe
Case Fans: 1x 140mm bottom in and 1x 200mm front in, 1x 140mm back out (Phanteks standard case fans, custom curve)
CPU: i5 7600K
CPU Cooler: Corsair H100i and 2x 120mm BeQuiet fans (air out of top of case)
Motherboard: ASUS Z270-F ROG
GPU: Palit Jetstream 1080 Ti
RAM: 16GB 2400MHz Corsair Vengeance

I've not overclocked my CPU. The overclock would just be for my GPU, which gives me a bit of a FPS boost in demanding games like FFXV.

As I mentioned I'm only really interested in water cooling the GPU as the CPU already has a Corsair H100i AIO installed that keeps the temps <60C the vast majority of the time.

The water cooling is also for noise reasons as well as thermals, as although the GPU fans are pretty quiet, I used to have an EVGA 980 Ti hybrid card which was silent under load and topped out at 55C, which allowed for fairly aggressive overclocking without thermal throttling.