Custom waterloop struggle

[AstroAss]

Hi,

I'm twisting my head around trying to figure out a water cooling set for my PC...

My current setup is an overclocked i7-5960X at 4.5GHz and 4GPUs (2x GTX 1080Ti FE and 2x GTX 1080 FE). I need to watercool the two 1080Ti cards first and foremost, though throwing the CPU into the mix wouldn't hurt. At the moment I've got a Corsair Hydro H115i 280mm AiO cooler on it with two Noctua industrial fans for the CPU and all 4 GTX cards are on air with the two 1080s disabled via mobo while I game to release the PCI lanes back to the Ti cards.
In case anyone's wondering - I do GPU rendering and such, so hence the 4 top-end GPUs... But it's when gaming is when the noise annoys me

I tried the configurator tool on the OCUK website, but that doesn't include the water blocks for GPUs and is not smart enough to let me know what fittings will work with my selected stuff.

I've got a fairly big case (Corsair Graphite 760T, though I plan to maybe swap that later to the 780T as I built a PC with that one at work) and I reckon I've got space there for a dual rad at the front, a tripple at the top and a single on the back.

I'd apprectae it if someone could help me out with figuring out what I need

I was thinking of the EK Gaming A240G aluminium kit - sounds good to have something like that - all aluminium, no mixing of metals, everything I'd need is there with instructions and aluminium is way cheaper than copper... Downside is - it only comes with one GPU block. EK told me they don't sell aluminium blocks separately so I'd need to buy two kits to cover both GPUs. On the upside - then I could also use both rads there (240mm rad with two fans would come in each kit). The price is actually not bad - still way cheaper than what I can spec up using the traditional copper rads and blocks (from EK)!
But I'm just not sure if it would handle the two 1080Ti cards when overclocked AND my 5960X at 4.5GHz as the H115 is already struggling under load in the 70s and 80s with a quiet fan profile (unless having more water in a custom loop somehow helps a lot more than in an AiO).
EK don't yet sell aluminium rads and fittings separately either, so there's no upgrade path yet (though I suspect there will be as EK said they want to expand on this aluminium range).

Help is appreciated!

 

[AstroAss]

Thanks so much for the reply, man! Really made it all simpler to me. I've chosen a lot of these myself minus the fittings and the tubing (which is whre I got lost), so really appreciate the help!

Now on a side note, do you think upgrading to a Corsair 900D case would make any sense? I'm just really crapping myself here that there won't be anough cooling capacity for what I need out of the system - to stay at full clocks on full load when rendering/gaming and stay quiet and at moderate tempss. I've measured the front of my 760T and while there are two 140mm fans in there - there's no way I'd be able to fit a 240mm rad in there, so I'd have a single 120/140mm rad there at best without interfering with my HDD tray (hang-mounted under the 5.25" bays). Upon some more measurement I'm not sure I can even get a single 120mm rad at the back once the top is occupied by a 360mm either...

This is where I'm thinking of a bigger box where I could just plop a couple of behemoth rads (480mm at the top and botom?) in there and be done with it. But does it make sense to pay £330 for a 900D for that? Or am I overthinking it? Maybe there's a similar case that won't break bank?

Thanks again!

EDIT: Just noticed a problem - your spec of a 360mm rad and no CPU block wouldn't work in my case as the top is already occupied by a 280mm Corsair H115i for the CPU... Crap... I really do need a bigger case, don't I...