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Anybody have experience with external radiators?

post #1 of 9
Thread Starter 
Hi all, so I'm getting kinda high temps on my 290 (85c for VRM 1) with my room like 50 degrees F, and I have a feeling when it's 100 F temps are gonna be a real problem. I'm currently running that 290 and a 3770k at 4.6 GHz with a Corsair H60. I plan on eventually CF'ing 290's.

My case is an NZXT Tempest 410. Here's a pic of my setup.



Not much room. If I'm understanding correctly I'd need at least 360mm of rad with just my 3770k and 290 to get decent temps. However, I want awesome temps.

I have room for a 240 rad up top and a 120 rad where the H60 one is, but I don't think that's gonna be enough. However, my case has these.



That got me thinking, what about having an external rad and pump? I could get a res that would fit into my open 5.25" bay, then go to my 3770k, out the back of the case, through the pump, through rads back into the case, through the 290 and back into the res.

Now this all sounds nice and dandy theoretically, but I know just about nothing else about water cooling.

What kind of rad/s should I get? Should I stick with 480 right now? Or get more?

What about my setup? Do you think the loop I just proposed would work well?

I have a spare mATX case and PSU I can use to power the pump, and I have the space behind my PC so that's really not an issue.

I don't want to spend a crap load of money (just bought a 290, a Gelid, and 3 monitors... expensive lol) but I will spend as much as I have to to get good cooling.

Thanks for any help.
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post #2 of 9
You are better keeping the res and pump inside the case. I have a smaller case than you (Bitfenix Ronin) and I have my 7950 and 3770k under water with a 120 rad and a 240. My 120 is on the outside of the case with the fan mounted on the inside and the tubes running out the back to the rad. I know the 290 runs hotter than my 7950 but I have my 3770k at 4.8ghz 24/7 and my 7950 at 1500 on the mem and 1100 on the core. gaming My cpu doesn't break 50 and my Card's core doesn't break 40. Keep in mind that I dellided my cpu and used liquid ultra on the die. 360 rad space is enough for cpu and single card overclocked for good temps. I wouild suggest getting a 5.25 bay res and a d5 pump (buy an external dvd drive for 40 bucks) and get a fan controller aswell. The recon is cheap and does the job. This way you can keep everything inside short of maybe one rad and you won't need to utilize a second case and psu which would just add more tube and decrease the cooling capability. As far as cost goes my setup with everything including fittings was probably about $450 CAN give or take. Hope that helps thumb.gif
Edited by chann3l - 11/30/13 at 2:40pm
R@WR
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CPUMotherboardGraphicsRAM
Intel Core i7 3770k Z77 MPower (MS-7751) Asus Radeon R9 290 Corsair Dominator DHX Pro 
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OCZ Vertex 3 SSD Seagate Barracuda LG Super Multi XSPC Raystorm laing ddc 3.25, ex 240 Swiftech X... 
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R@WR
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OCZ Vertex 3 SSD Seagate Barracuda LG Super Multi XSPC Raystorm laing ddc 3.25, ex 240 Swiftech X... 
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by chann3l View Post

You are better keeping the res and pump inside the case. I have a smaller case than you (Bitfenix Ronin) and I have my 7950 and 3770k under water with a 120 rad and a 240. My 120 is on the outside of the case with the fan mounted on the inside and the tubes running out the back to the rad. I know the 290 runs hotter than my 7950 but I have my 3770k at 4.8ghz 24/7 and my 7950 at 1500 on the mem and 1100 on the core. gaming My cpu doesn't break 50 and my Card's core doesn't break 40. Keep in mind that I dellided my cpu and used liquid ultra on the die. 360 rad space is enough for cpu and single card overclocked for good temps. I wouild suggest getting a 5.25 bay res and a d5 pump (buy an external dvd drive for 40 bucks) and get a fan controller aswell. The recon is cheap and does the job. This way you can keep everything inside short of maybe one rad and you won't need to utilize a second case and psu which would just add more tube and decrease the cooling capability. As far as cost goes my setup with everything including fittings was probably about $450 CAN give or take. Hope that helps thumb.gif
Thanks for the input, I was honestly leaning toward a D5 pump.
I'm gonna take more measurements, I can fit (barely) two 140mm fans up top so maybe I could squeeze in a 280 rad. I could put a 120 where I have one now, also. Would it be possible to have one 120 on the inside, and one on the outside, with 2 fans in a push-pull config? It would look goofy but maybe it would work.
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post #4 of 9
Two rads would work technically meaning it can physically be done but the cooling would suffer quite a bit because the hot air from the first rad would be pulled through the second. You are better off buying a 240 and a external rad mount if you really want more than 360 worth of rads. If your not satisfied with the cooling with 360 you could always buy more fans and do push pull that way.
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R@WR
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Windows 8.1 Pro LG 24inch led Backlit Corsair K60 XFX 850WPro Fully Modular 
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Bitfenix Ronin Steel Series Sensei Razer Goliathus Steel Series Siberius V2 
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post #5 of 9
Thread Starter 
I'll see if I can fit it onto my case. I was considering buying an XSPC kit, then buying a separate GPU block and adding it in myself.

I've heard some not-so-great things about the XSPC tubing, so I'm probably gonna get a couple feet of Tygon.

I'm thinking this because the 280 rad is thin and it should fit in my case.

http://www.frozencpu.com/products/16551/ex-wat-217/XSPC_Raystorm_EX280_Universal_CPU_Water_Cooling_Kit_w_D5_Variant_Pump_Included_and_Free_Dead-Water.html?tl=g59c683s2180

I'm probably gonna get either a 120 or 240 XSPC rad, along with an XSPC 290 block if I can get my hands on one.

Now I have 240mm of space on my case door, would it be possible to mount a rad on the inside of it with fans on the outside? I could have an extra foot or so in slack so I can pull the case door away from the case if I need to.
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post #6 of 9
Ugh i know whatch-your-thinkin' don't do it kid.

First the Hxx series blows if u want real water cooling you grab a simple pump simple rad and simple cpu block. U can get a whole xspc set for $150 + fittings,pump and tubing!! (xspc raystorm kit

And don't use the limitations of the case as a scapegoat to put a hideous external rad, the elite has plenty of room for a top dual rad or a front dual rad in push-pull config!! Take it from me I just put a dual rad and 250ml reservoir into a antec 900!!!



post #7 of 9
Thread Starter 
Haha yes the H60 has kept my CPU nice and cool for a while but now I need something better...

Took some measurements and there's no way I can fit a rad on top, front, or side of my case without some serious modding...

Ugh screw this small case. I'm gonna keep looking and measuring and see if I can figure something out.

That rig looks sick by the way.

...Maybe I need a new case? This one was only like $50 anyway. What's a good (preferably full tower) case for watercooling?
Edited by chiknnwatrmln - 11/30/13 at 5:22pm
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post #8 of 9
What do ya figure that ya 290 puts out ? 300ish ? based upon martins data ....

. ....a UT60-480 will provide 303 watts of cooling at 1250 rpm in push / pull
......a UT60-420 does about 309

Overclocked 4770k puts out 145 ish ..... so say 450 watts

6 x 120 would meet 100% of your "theorteical" criteria

I have a 799 watt load and my 280 + 420 has a 'theoretical" cooling capacity of 508 watts in push / pull.... right now I only have push installed (cutting my theoretical to 458 or 57%) and I'm at 31C water temp w/ 21C ambient ... CPU temps on the 4770k top out at 75C at 4.6 GHz (1.38 VID) under RoG Real bench and GFX top out at 39 under Furmark.

Fans are Phanteks SP140s maxing out at about 1232 rpm ...usually at 590 rpm .... obviously doing a helluva job......35x2 pump speed is at 2100 rpm

As for external rads ....

Im sure this will handle a 2nd 290



http://www.frozencpu.com/products/19813/ex-rad-601/Watercool_MO-RA3_360_LC_9_x_120mm_4_x_180mm_Extreme_Radiator_-_Black_Powder_Coat_22096.html?tl=g30c95s667
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post #9 of 9
My first loop was a 955 in an Antec 1200, I mounted the power supply externally and put a 360 on the bottom(in place of the power supply, still have the long cables made by PPC's for me, great company. The bottom of the case was modified for bottom intake and the case was up off the floor on wheels. I have put the res. and the pump outside the case(backside), with the fitting end of the radiator out the back. Instead of having the res on the back I have used 3 full bays on the 1200 and put a CD waterfall res. in those bay slots, still have that res. it was my first custom res. (without the inside steps as the water returning to the res. is noisy enough without them)

My test station has two 480's and two 360's mounted horizontal to the ground (along with the res (2) and the pumps. I am all for outside components, just don't think you will find many people that will like your way of thinking. My rigs were all folding rigs so it was all "get rid of the heat", everything else came second.
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