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Question about adding second rad/gfx waterblock.

post #1 of 7
Thread Starter 
Hi everyone,

I'm looking at purchasing a 1080 and watercooling it and have a few questions. First of all I currently have a 60m thick 240m radiator that is cooling my mildly overclocked 6700k. Would this rad be sufficient to also cool a GTX 1080? If not (or if its even borderline) I have room to fit a 280m rad at the front of my case between the fans and reservoir.

Here is my current setup and I'm well aware its quite messy



And here is my super dodgy paint job revision

The idea is to mount the second rad at the front, have the top rad's rear tube loop down and angle towards the rear port off the front rad and the window side port go to the reservoir. I know I haven't explained this the best but I hope the point gets across.



My question here is this an ok way to set up the loop.

I am currently using this kit: http://www.thermaltake.com.au/products-model.aspx?id=C_00002571 except I have replaced the rad with an Alphacool NexXxoS UT60 Full Copper 240mm and I'm using different tubing/liquid/fittings/fans.

Chris
post #2 of 7
The rad would be perfectly fine.
Consider that the 295x2 and the Fury X is watercooled with a single 120mm rad, and that most people get away with cooling hotter CPUs with the the same type of AIO 120mm watercooler(or even less).

Of course the extra radiator will only help, and if you want to spend the extra for the extra cooling capacity then you should. If I understand the picture and your description correctly, then that setup should also be perfectly fine.

It looks like you might not have the space for the rad in the front, from the picture, since the 5.25" bay is so low. But I don't know what case that is, so you should make absolutely sure you have the clearance. Just kidding, 750D has plenty of room.
Edited by TheShamen - 6/1/16 at 1:52am
post #3 of 7
First of all don't rag on paint, paint is the best haha.

And second a 240 is just enough to cool a cpu thats OCed at decent temps. If it dissipates 200w to give you a 10C above ambient thats about average. The 6700k loaded and oced is prob around 150w or so not too familiar with skylake.

For example i have a 240 and a 360 and get a water delta of anywhere between 1°C at idle and 7°C at full load using case temp and water temp. A single 240 can cool both with a gpu BUT your temps will barely be above air if even at all. Considering a 280rad is quite cheap i would def jump on it its totally worth it. That 280 will be enough for your 1080 and then some and the 240 will add to it.

You should be looking at around 400w of dissipation or so. Mine is at about 500w or so if not more, push/pull helps but not much depending on the rad.
    
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post #4 of 7
Thread Starter 
Thanks for the replies. I can definitely fit full size radiator at the front I have test fit it before. Looks like I might fork out and grab the extra rad and figure out what fittings I'm going to need to make the top rad connect to the front rad. Now its time to decide what 1080 to go for and what aftermarket waterblocks will be available. I wouldn't mind waiting for a Titan/Ti but my poor old GTX 690 is getting a bit tired these days.

Chris
post #5 of 7
Quote:
Originally Posted by dblstR View Post

Thanks for the replies. I can definitely fit full size radiator at the front I have test fit it before. Looks like I might fork out and grab the extra rad and figure out what fittings I'm going to need to make the top rad connect to the front rad. Now its time to decide what 1080 to go for and what aftermarket waterblocks will be available. I wouldn't mind waiting for a Titan/Ti but my poor old GTX 690 is getting a bit tired these days.

Chris

I do believe ek will only make reference waterblocks and that evga plans to release some as well but not made by ek. A couple people have already watercooled em.

I had my r9 390 and 4690k on a single 240 before adding my other one, cpu temps didnt change much but my water temps reached 36C in winter. After adding the other rad water temp dropped to about 30-31 or so if i remember correctly and my GPU went from 71C on water to 51C or so with a single rad (if i remember correctly) to 41C now with the setup i have on it. I love the temps and even with lots of fans its quitter then the r9 390 was alone when at 60%.

Don't forget to rep your friendly neighborhood spidermans lol.
    
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post #6 of 7
Thread Starter 
I just found the old radiator (64m thick) that originally came with my water cooling kit and screwed it into the front to test fitment and make sure it is ok with the fans at the front. Seems to fit OK although I am a bit concerned about the bottom of the HDD cage (circled in red, hard to see), it has a rail to slide to the extra bay in if needed and it will touch the tubing at this angle. I may have to bend it further then I already have to make this work. I would like to just get rid of the 5.25 bays but I have 3 HDD's in there and nowhere else to put them (as you can see by my 4th sitting on the floor of the case..). This also seems like a horribly inefficient way to do the loop. Can anyone give some suggestions about how to redesign this?



I will be most likely replacing with all new tubing and giving the entire loop a very good clean when I disassemble it as its quite messy and I think its still feeling the after effects of having an aluminium radiator in there for a short period of time prior to switching to my current one. Probably going to switch to a premix coolant as well, Ive been running distilled water with mayhems biocide and UV dye and it lost all its UV effect within a day and looks like crap. Below is how awesome it looked on day 1...



Chris
post #7 of 7
Everyone will tell you that loop order doesnt matter as the water flows so quickly it doesnt matter much. Its fine either way.
    
CPUMotherboardGraphicsRAM
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Kingston HyperX 3K Seagate ST2000DM006 EKWB Supremacy Evo EK-XRES 100 Revo D5 - Acetal 
CoolingCoolingCoolingCooling
Alphacool GPX r9 390 m01 alphacool xt45 240 Alphacool xt45 360 Alphacool D5 PWM 
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Windows 10 LG 29UM68 Corsair Strafe Corsair RM1000 
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Thermaltake X5 Corsair M65 Pro RGB Razer Goliathus Speed 
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CPUMotherboardGraphicsRAM
R7 1700X asus crosshair 6 Sapphire R9 390 Nitro CMK16GX4M2B3200C16 
Hard DriveHard DriveCoolingCooling
Kingston HyperX 3K Seagate ST2000DM006 EKWB Supremacy Evo EK-XRES 100 Revo D5 - Acetal 
CoolingCoolingCoolingCooling
Alphacool GPX r9 390 m01 alphacool xt45 240 Alphacool xt45 360 Alphacool D5 PWM 
OSMonitorKeyboardPower
Windows 10 LG 29UM68 Corsair Strafe Corsair RM1000 
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