Syed117
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I'm assuming the fan for the hybrid radiator can be mounted either an exhaust or intake. Right now this is what the inside of my case looks like. Yellow arrows show air flow.  I was planning on placing it opposite the cpu fans (replace intake fan on the top right in the image) and have it as an intake to keep the airflow the same. No plans on getting crazy with overclocking. Mainly getting the hybrid to cut down on noise. What do you guys think? Yes, I know the inside of my case is not that fancy. Relatively clean though, that's good enough for me.
NZXT S340 Elite - White | GIGABYTE Aorus GA-Z270X-Gaming K7 | Intel i7 7700k | G.SKILL TridentZ - 32GB DDR4 3200 | EVGA GeForce GTX 1080 Ti FE Hybrid | SAMSUNG 960 EVO M.2 500GB | Seagate FireCuda Gaming SSHD 2TB | WD Blue 1TB | EVGA SuperNOVA 750 G2 Gold | Corsair H75 CPU Cooler | LG 34UM67-P | Corsair K95 Platinum Brown | Corsair M65 Pro | Corsair MM800 RGB | Logitech G533 Firestrike - 22,904 - http://www.3dmark.com/fs/12497060 Firestrike Extreme - 14,051 - http://www.3dmark.com/fs/12318664Firestrike Ultra - 7525 - http://www.3dmark.com/3dm/19641581?Timespy - 9706 - [link=http://www.3dmark.com/spy/166
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MDeckerM
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Re: 1080 Ti Hybrid fan direction and case cooling
Sunday, March 26, 2017 1:32 AM
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Hello,
in my opinion based on your current build configuration, I would recommend mounting the Hybrid radiator to the top with the fan exhausting outward.
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zswickliffe
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Re: 1080 Ti Hybrid fan direction and case cooling
Sunday, March 26, 2017 1:37 AM
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EVGATech_MDecker
Hello,
in my opinion based on your current build configuration, I would recommend mounting the Hybrid radiator to the top with the fan exhausting outward.
Don't think that'll work, looks like it'll interfere with the CPU cooler and the motherboard. I'd mount it at the front as an intake.
i7-4790k @ 4.6GHz 1080 Ti @ 2050MHz
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IchiTsuyoi
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 1:33 PM
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Do you have clearance to mount your cpu AIO to top? If so move cpu to top exhaust, mount gpu to rear exhaust.
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khatin23
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 3:16 PM
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1st thing you should do regardless of your gpu cooling solution is mount the cpu radiator to the top. The radiator in a closed loop system should be mounted so that the hoses of the radiator are not only either at the bottom of the radiator in a vertical mount or simply horizontally mounted, but also mounted so that the radiator i/o hoses are above the pump. This will increase the longevity and efficiency of the cooling solution.
2nd- If you have room to mount the radiators at 90 degrees next to each other (exhausting out the rear and top of the case) that would be viable, but the objective here is to reduce heat in the system, so always exhaust your radiator. As an alternative, with the cpu radiator mounted to the top, you could configure your rear and bottom right fans as air in, and attach the gpu radiator to the top right (front) fan blowing out. While it is counter intuitive to blow hot air out the front, it would be effective, and with the exhaust above the intake, hot air would rise and there wouldn't be an issue with returning hot air into the case, by the looks of things the radiator hoses would still be able to be mounted above the pump at the gpu in your current slot, but if not then you could just bump it down a slot.
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bcavnaugh
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 3:44 PM
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khatin23
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 4:01 PM
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Hope this Helps...
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chap34
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 4:04 PM
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khatin23
Hope this Helps...
I think the second image would created a tornado in his case...
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TRClark911
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 4:06 PM
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Nice case OP... :) :) I have the same case and the same question.... not trying to hijack. My setup is the same. The front is the only spot with a filter so I mounted the rad to the front with both fans blowing in. Air exits the top and rear the same as the OP. (I sent my 1080 back to EVGA last week and am waiting on the Ti delivery)  So... with this hybrid kit.... rad/fan blowing out the top or the rear? Does it matter?
post edited by TRClark911 - Monday, March 27, 2017 4:41 PM
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bcavnaugh
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 4:21 PM
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khatin23
Hope this Helps...
Not Really, Images to small to see the details.
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ksgnow2010
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 6:06 PM
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TRClark911
Nice case OP... :) :)
I have the same case and the same question.... not trying to hijack.
My setup is the same. The front is the only spot with a filter so I mounted the rad to the front with both fans blowing in.
Air exits the top and rear the same as the OP. (I sent my 1080 back to EVGA last week and am waiting on the Ti delivery)
So... with this hybrid kit.... rad/fan blowing out the top or the rear? Does it matter?
Your radiator hoses are on the top in your configuration. This is not advised as the air in the system rises to the top, and your AIO pump could be sucking air through them. It would be better to mount the hoses at the bottom. For the OP - I mount 2 GPU AIO and 1 CPU AIO 120 mm radiators as intake into my case. Works great. Just make sure that the "return hose" (i.e. the hose that moves coolant from the radiator to the AIO pump block) is on the bottom when you mount them.
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TRClark911
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 6:11 PM
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ksgnow2010
TRClark911
So... with this hybrid kit.... rad/fan blowing out the top or the rear? Does it matter?
Your radiator hoses are on the top in your configuration. This is not advised as the air in the system rises to the top, and your AIO pump could be sucking air through them. It would be better to mount the hoses at the bottom.
So I should do a 180 with the rad so the hoses are at the bottom? What about the hybrid rad and my original question? rad/fan blowing out the top or the rear? Does it matter which?
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khatin23
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 6:13 PM
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BC- sorry about the size, try zooming in in the browser (open it in its own window and ctrl +) Chap- may or may not create a dead spot in what looks like a non component heavy point on the mb, but overall, i would think that the card would act like a fin to mitigate most of that, and the stronger cross flow on the top should create enough of an imbalance to avoid any centripetal force creating said vortex.. that being said i am not an engineer. TRC- wouldn't really matter, but you should consider that by intaking your air through your radiator that you are increasing the internal temp of your case and board and should exhaust through the radiator... also, you should have the tubes on your radiator at the bottom, not the top. Obviously I have a different box, but I tried to illustrate as best i can with my own setup... For what it is worth, I have both radiators configured in push pull exhaust (fans on both sides of the radiator all blowing out). While you might think that more fans=more noise, the reality is that more fans means they push more/same cfm at lower rpm and make less noise overall (they sound like a plane taking off at startup, and then drop down and run ridiculously quiet at idle or with very low step-up no matter hard i push)
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TRClark911
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 6:23 PM
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khatin23
TRC- wouldn't really matter, but you should consider that by intaking your air through your radiator that you are increasing the internal temp of your case and board and should exhaust through the radiator... also, you should have the tubes on your radiator at the bottom, not the top.
Cool thanks for the info. I built the PC a month ago (my first build in 16 years) and this is my first go at liquid cooling. You guys are the first ones to mention that I had the rad upside down. At any rate, it's an easy fix. As for the intake thru the rad into the case, yeah, I was told it would increase temps inside the case but I'm also in WA state where the ambient air temp is mild with low humidity year round (vs Texas or Florida for example) and was told it wouldn't be a big deal. For what it's worth my CPU idles around 30C and that's with a 4.8 OC... it was 26 or so at stock speed. Load temps have been mid 70's with stress tests in the low to mid 80's... I don't see any issue with it but what do I know? My reasoning for bringing air in thru the front rad is because it's the only intake that has an air filter on it... less dust inside? So basically if do a 180 with the rad... air blowing out... mount the GPU rad at the top with air blowing out... then flip the rear fan around to blow cool air in... How's that? Also, would adding 2 fans to the CPU rad (to have 2 on each side) blowing out be like what you have on yours? Damn that's a lot of wires! LOL
post edited by TRClark911 - Monday, March 27, 2017 6:28 PM
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herocrusher
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 6:42 PM
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EVGATech_MDecker
Hello,
in my opinion based on your current build configuration, I would recommend mounting the Hybrid radiator to the top with the fan exhausting outward.
+1 On my last build I mounted the GPU rad fan as intake on the front and while that kept the gpu cool it dumped to much hot air into the case making my cpu and case temps go up. I recommend both rad fans as exhaust. You may also be able to put your cpu rad on top and gpu rad on back.. at least that is how mine is setup and my temps have been awesome in that config.
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herocrusher
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 6:56 PM
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TRClark911
ksgnow2010
TRClark911
So... with this hybrid kit.... rad/fan blowing out the top or the rear? Does it matter?
Your radiator hoses are on the top in your configuration. This is not advised as the air in the system rises to the top, and your AIO pump could be sucking air through them. It would be better to mount the hoses at the bottom.
So I should do a 180 with the rad so the hoses are at the bottom? What about the hybrid rad and my original question? rad/fan blowing out the top or the rear? Does it matter which?
I would consider getting a new case.. One that would allow you to mount your CPU rad on top and then you could mount your new hybrid on the rear.. both as exhaust. This would allow you to flood your case with cool air from the front and exhaust the hot air out the rear/top.
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TRClark911
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 7:00 PM
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herocrusher
I would consider getting a new case.. One that would allow you to mount your CPU rad on top and then you could mount your new hybrid on the rear.. both as exhaust. This would allow you to flood your case with cool air from the front and exhaust the hot air out the rear/top.
So you're telling me that myself and the OP bought the wrong case because the NZXT S340 Elite isn't a quality case due to the whole cooling thing? Man.... CPU load temps in the 70's and it's no good? I'm just not all that worried about blowing air thru the rad into the case due to the fact I live in Washington state and not Texas and my room temp never even cracks 70 degrees F.
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herocrusher
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 7:10 PM
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TRClark911
herocrusher
I would consider getting a new case.. One that would allow you to mount your CPU rad on top and then you could mount your new hybrid on the rear.. both as exhaust. This would allow you to flood your case with cool air from the front and exhaust the hot air out the rear/top.
So you're telling me that myself and the OP bought the wrong case because the NZXT S340 Elite isn't a quality case due to the whole cooling thing?
Man.... CPU load temps in the 70's and it's no good?
I'm just not all that worried about blowing air thru the rad into the case due to the fact I live in Washington state and not Texas and my room temp never even cracks 70 degrees F.
The case looks nice it just doesn't look that friendly for Radiators. Living in Washington I'm sure you are good either way. But as far as the best cooling setup goes... even if you reversed the air flow you would have 3 exhaust and one intake when you get your hybrid. I guess you could just keep it as is with the 2 intake on front and 2 exhaust on back. Just food for thought on your next build.. your temps are good so its not a big deal. I ran my gpu rad as intake for 2 years and had no problems but it did raise my CPU and case temps. Edit: another option would be to get a single fan rad like the OP.. then you could mount both single rads top/back and intake cool air.. but like I said you are fine as is just giving you options. I had my GPU rad on the front as intake because it was my only option with the case I was running. I just looked an it was because the rear port didn't have clearance with my top rad.
post edited by herocrusher - Monday, March 27, 2017 7:57 PM
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khatin23
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 7:10 PM
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TRC- sounds good to me... as far as temps, being in climate controlled environment myself, i get it but.... you are basically running a heater inside a ventilated closed space... so.... maybe not really a BIG deal, but if you are going to go through the effort to water cool for an extra temp drop why compromise it by adding heat back in? just one man's perspective. yes, since it looks like you have the room, i would add two more fans to your radiator (push/pull config)... I never bothered/cared or thought it would make any real difference, but then... after 6 years with my first h100i the fins clogged and i bought another one.. i had the fans from the first one and thought.. wth why not, worst case scenario it's loud and doesn't make a difference and i take them back off... I was amazed how much cooler and quieter things run when i'm pushing my system... I used to run similar temps to what you are getting and haven't seen anything over 62 since, and that was after 12 hours of 95 prime. Not only did it run with a significantly lower high temp, but the quiet factor really was significant. I never realized how irritating the fans were until i noticed that i couldn't hear them anymore. Personally I'll never do it any other way again, and when I installed the hybrid gpu I automatically installed it push/pull without giving it a second thought. Yeah... it's admittedly not the cleanest looking build, but i never thought i would be posting a pic ;) lol built for speed, quiet and cool.
post edited by khatin23 - Monday, March 27, 2017 7:33 PM
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TRClark911
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 7:57 PM
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herocrusher
The case looks nice it just doesn't look that friendly for Radiators.
Living in Washington I'm sure you are good either way.
But as far as the best cooling setup goes... even if you reversed the air flow you would have 3 exhaust and one intake when you get your hybrid.
I guess you could just keep it as is with the 2 intake on front and 2 exhaust on back.
Just food for thought on your next build.. your temps are good so its not a big deal.
I ran my gpu rad as intake for 2 years and had no problems but it did raise my CPU and case temps.
Agree with you there... not really radiator friendly. At the time of purchase I liked the looks of it and the tempered glass. Will definitely research better now that I've gotten a taste of liquid cooling and how it works. This was first build in 16 years and I've been out of the loop. I totally get the whole "bringing warm air thru the rad into the case" thing but it's just not as big of a concern being here vs being in a place like Texas where it's hot and humid. Definitely will remember this convo for the next build. Thanks! khatin23
TRC-
sounds good to me...
as far as temps, being in climate controlled environment myself, i get it but.... you are basically running a heater inside a ventilated closed space... so.... maybe not really a BIG deal, but if you are going to go through the effort to water cool for an extra temp drop why compromise it by adding heat back in? just one man's perspective.
yes, since it looks like you have the room, i would add two more fans to your radiator (push/pull config)... I never bothered/cared or thought it would make any real difference, but then... after 6 years with my first h100i the fins clogged and i bought another one.. i had the fans from the first one and thought.. wth why not, worst case scenario it's loud and doesn't make a difference and i take them back off... I was amazed how much cooler and quieter things run when i'm pushing my system... I used to run similar temps to what you are getting and haven't seen anything over 62 since, and that was after 12 hours of 95 prime. Not only did it run with a significantly lower high temp, but the quiet factor really was significant. I never realized how irritating the fans were until i noticed that i couldn't hear them anymore. Personally I'll never do it any other way again, and when I installed the hybrid gpu I automatically installed it push/pull without giving it a second thought.
Also, looking at your config, given that the pump would end up above the tubing when you flip it, i would think that the best config for your 240 rad would be to either put the box on it's side with the cpu-out/rad-in hose on the bottom (it will be the hotter of the two), or to drill a continued honeycomb vent into the top of your box and mount the rad there. short of that i'm not seeing a way to properly mount it in that case. (i had a similar situation when i switched to the 240 rad which is why i no longer have my old case)
Yeah... it's admittedly not the cleanest looking build, but i never thought i would be posting a pic ;) lol
built for speed, quiet and cool.
Those wires! Haha You know something though... I liked the idea about the honeycomb drilling in the top of the box. I actually work in a machine shop and could waterjet a template hole pattern and then use it to drill holes in the top of the case and mount the rad up top... or I could either cut sections out of the top and replace them or just replace the entire top of the case with a piece of stainless perforated material similar to this...   Good for airflow no? The possibilities are endless and you gave me some ideas. I totally get what you are saying about going through the effort of water cooling and then adding warm air into the case... as I said given my location it wasn't a big concern. Still, I'm all about optimum performance and cooling and I actually like your last idea the best... modifying the top of the case as I just mentioned... moving the rad up top... gpu cooler in the rear... and cool air coming in the front. Would you still add 2 more fans to the rad with this scenario? Thanks for the input guys!!
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Syed117
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:02 PM
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Thanks for the replies everyone.
It didn't even occur to me that I should flip the radiator to have the tubes at the top. I just installed based on what looked best at the time. Will take care of that.
Unfortunately I can't do anything about the top vent. There is no clearance for anything other than that standard fan. I'm thinking I will just have the hybrid radiator in the top front as an intake as I initially planning. Don't really have much choice.
I'm not overly concerned with the inside temperature of my case. It seems great right now. Airflow doesn't seem to be an issue.
Will see what happens when I can actually get the new cooler.
NZXT S340 Elite - White | GIGABYTE Aorus GA-Z270X-Gaming K7 | Intel i7 7700k | G.SKILL TridentZ - 32GB DDR4 3200 | EVGA GeForce GTX 1080 Ti FE Hybrid | SAMSUNG 960 EVO M.2 500GB | Seagate FireCuda Gaming SSHD 2TB | WD Blue 1TB | EVGA SuperNOVA 750 G2 Gold | Corsair H75 CPU Cooler | LG 34UM67-P | Corsair K95 Platinum Brown | Corsair M65 Pro | Corsair MM800 RGB | Logitech G533 Firestrike - 22,904 - http://www.3dmark.com/fs/12497060 Firestrike Extreme - 14,051 - http://www.3dmark.com/fs/12318664Firestrike Ultra - 7525 - http://www.3dmark.com/3dm/19641581?Timespy - 9706 - [link=http://www.3dmark.com/spy/166
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herocrusher
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:10 PM
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TRC I like khatin23's honeycomb drilling idea on top a lot! That would open up your case a ton. Plus I just love modding cases. I think you would get similar cpu temps with all that cool air from the front and your GPU temps would be better as well. Im sure you would but just encase remember to catch all the fillings from the drill so they don't infect your system. Also, going with push pull is definitely nice in that you can spin the fans slower to get equal or better performance resulting in a quieter build. I don't do it anymore though I just try to keep my radiator super clean of dust and use one fan. What matters most on the fans is that you use a radiator fan with high static pressure.. I once overlooked using a case fan on my rad and it was all sorts of fail.
post edited by herocrusher - Monday, March 27, 2017 8:21 PM
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herocrusher
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:17 PM
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Syed117
Thanks for the replies everyone.
It didn't even occur to me that I should flip the radiator to have the tubes at the top. I just installed based on what looked best at the time. Will take care of that.
Unfortunately I can't do anything about the top vent. There is no clearance for anything other than that standard fan. I'm thinking I will just have the hybrid radiator in the top front as an intake as I initially planning. Don't really have much choice.
I'm not overly concerned with the inside temperature of my case. It seems great right now. Airflow doesn't seem to be an issue.
Will see what happens when I can actually get the new cooler.
I think you have it right with tubes on the bottom.. Tubes on top can suck air into pump.
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Syed117
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:20 PM
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herocrusher
Syed117
Thanks for the replies everyone.
It didn't even occur to me that I should flip the radiator to have the tubes at the top. I just installed based on what looked best at the time. Will take care of that.
Unfortunately I can't do anything about the top vent. There is no clearance for anything other than that standard fan. I'm thinking I will just have the hybrid radiator in the top front as an intake as I initially planning. Don't really have much choice.
I'm not overly concerned with the inside temperature of my case. It seems great right now. Airflow doesn't seem to be an issue.
Will see what happens when I can actually get the new cooler.
I think you have it right with tubes on the bottom.. Tubes on top can suck air into pump.
Really? I thought someone in an earlier post said it should be reversed.
NZXT S340 Elite - White | GIGABYTE Aorus GA-Z270X-Gaming K7 | Intel i7 7700k | G.SKILL TridentZ - 32GB DDR4 3200 | EVGA GeForce GTX 1080 Ti FE Hybrid | SAMSUNG 960 EVO M.2 500GB | Seagate FireCuda Gaming SSHD 2TB | WD Blue 1TB | EVGA SuperNOVA 750 G2 Gold | Corsair H75 CPU Cooler | LG 34UM67-P | Corsair K95 Platinum Brown | Corsair M65 Pro | Corsair MM800 RGB | Logitech G533 Firestrike - 22,904 - http://www.3dmark.com/fs/12497060 Firestrike Extreme - 14,051 - http://www.3dmark.com/fs/12318664Firestrike Ultra - 7525 - http://www.3dmark.com/3dm/19641581?Timespy - 9706 - [link=http://www.3dmark.com/spy/166
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herocrusher
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:23 PM
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Syed117
herocrusher
Syed117
Thanks for the replies everyone.
It didn't even occur to me that I should flip the radiator to have the tubes at the top. I just installed based on what looked best at the time. Will take care of that.
Unfortunately I can't do anything about the top vent. There is no clearance for anything other than that standard fan. I'm thinking I will just have the hybrid radiator in the top front as an intake as I initially planning. Don't really have much choice.
I'm not overly concerned with the inside temperature of my case. It seems great right now. Airflow doesn't seem to be an issue.
Will see what happens when I can actually get the new cooler.
I think you have it right with tubes on the bottom.. Tubes on top can suck air into pump.
Really?
I thought someone in an earlier post said it should be reversed.
I think he was referring to TRC's intake radiator witch has the hoses on top... From what I understand air rises to the top and can get sucked into pump witch is bad for pumps.
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TRClark911
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:24 PM
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herocrusher
TRC I like khatin23's honeycomb drilling idea on top a lot! That would open up your case a ton.
Plus I just love modding cases.
I think you would get similar cpu temps with all that cool air from the front and your GPU temps would be better as well. Im sure you would but just encase remember to catch all the fillings from the drill so they don't infect your system.
Also, going with push pull is definitely nice in that you can spin the fans slower to get equal or better performance resulting in a quieter build. I don't do it anymore though I just try to keep my radiator super clean of dust and use one fan.
What matters most on the fans is that you use a radiator fan with high static pressure.. I once overlooked using a case fan on my rad and it was all sorts of fail.
By push pull you mean fans on both sides of the rad? I like the drilling idea too! I can make a template at work to where I wouldn't be drilling at random either. Kinda cool. Or I can just use that perf metal like in the pic.
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herocrusher
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:30 PM
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TRClark911
herocrusher
TRC I like khatin23's honeycomb drilling idea on top a lot! That would open up your case a ton.
Plus I just love modding cases.
I think you would get similar cpu temps with all that cool air from the front and your GPU temps would be better as well. Im sure you would but just encase remember to catch all the fillings from the drill so they don't infect your system.
Also, going with push pull is definitely nice in that you can spin the fans slower to get equal or better performance resulting in a quieter build. I don't do it anymore though I just try to keep my radiator super clean of dust and use one fan.
What matters most on the fans is that you use a radiator fan with high static pressure.. I once overlooked using a case fan on my rad and it was all sorts of fail.
By push pull you mean fans on both sides of the rad?
I like the drilling idea too! I can make a template at work to where I wouldn't be drilling at random either. Kinda cool. Or I can just use that perf metal like in the pic.
Yea I feel stupid for not thinking of the drilling idea myself.. it's definitely the way to go. Yes push/pull is a radiator sandwich with fans on both sides.. It can be very beneficial but for myself, I just look for one good rad fan nowadays and keep it all clean.
"All your base are belonging to us!"
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TRClark911
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 8:40 PM
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herocrusher
TRClark911
By push pull you mean fans on both sides of the rad?
I like the drilling idea too! I can make a template at work to where I wouldn't be drilling at random either. Kinda cool. Or I can just use that perf metal like in the pic.
Yea I feel stupid for not thinking of the drilling idea myself.. it's definitely the way to go.
Yes push/pull is a radiator sandwich with fans on both sides.. It can be very beneficial but for myself, I just look for one good rad fan nowadays and keep it all clean.
Don't feel stupid... I didn't think of it either. What's cool though is I have the means to do this and it's not gonna be all that difficult. As said I work in a metalworking machine shop specifically CNC waterjet cutting but I have access to drills and other tools as well. Basically I measure the screw hole pattern for the rad... input it into CAD and come up with a honeycomb pattern... cut that into a piece of material to use as a template... then put that material on top of the case as a pattern to drill the holes. Perfection. Gonna do the push/pull as well. I'm expecting the Ti to ship (hopefully) today from EVGA and show up later this week... once the hybrid kit is released I'm gonna put this plan into action that is push/pull rad at the top... gpu rad at the rear... with cool air coming in the front thru the air filters. Will post back with before/after pics... thanks for the input!
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TheWizardMan
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 9:11 PM
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I don't think you guys are going to get the benefits you want from doing push/pull with these rads. They are 120mm rads that are like 30mm thick. incremental benefit of push/pull here is very minimal (if not completely negligible). Don't let me dissuade you, I'm running 2 rads in push/pull and one in push, but I specifically chose (1) a thicker rad in one case and (2) a rad with a very high fin density in the other.
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ksgnow2010
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Re: 1080 Ti Hybrid fan direction and case cooling
Monday, March 27, 2017 9:20 PM
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For AIOs (or any other water cooling build) the liquid cooling reservoir has to be ABOVE the pump. This ensures that the air is always above the pump and keeps it out of the pump. If air gets into the pump, it will cause cavitation...this is bad (and noisy). Additionally, the liquid in AIO systems is also a lubricant for the pump and pump seals.
In the OP picture (as the thread was slightly hijacked - hehe), the OP has his radiator mounted correctly. The pump (on his CPU block) is below the "top" of the radiator. Air will rise in the system to the top of the radiator. Additionally, the hoses that go back to the AIO block are on the bottom of the radiator, and will only suck coolant. A possible place for air to get trapped is in the "bend" of the tubes as they go into the CPU block. However, this would be temporary as the liquid pressure would eventually push the air to the top of the radiator.
Now, in the second picture (with the large NZXT radiator), I raised a note of caution here as the tubes for liquid circulation were mounted at the top of the radiator...above the CPU block. As the pump is still about "Center" on the radiator, this will most likely be OK. However, there is a definite probability that the hoses could suck in air, as the air will rise to the highest point in the system. Best practice would be to mount the tubes at the bottom to "guarantee" that the pump is always getting solid coolant flow.
As far as for running intake through a radiator...this is fine and there is nothing wrong with it. The tradeoff is simple:
1. Radiator as intake:
- Lower component temperature (i.e. GPU or CPU) and higher system temperatures
2. Radiator as exhaust:
- Lower system temperatures and higher component temperatures
Any cooling system can be broken down to a simple metric called delta-T. Basically, the cooling system can only cool the component a certain amount higher than its intake air temperature. For AIO systems, this is typically around 20 C at full load. One thing that you have to remember is that in electronics, heat creates more heat. So, as a high power component gets hotter, its power dissipating members get hotter, which cause them to dissipate more power. This continues until thermal equilibrium is reached.
My personal experience is that I have better overall performance running my radiators as intakes for the following reasons:
- Cooler air cooling the highest power components (based on delta-T, they stay the coolest)
- There is always "good airflow" to the highest power components (if you put radiators as exhaust, the airflow is dependent upon case airflow as well as the fan speed...cases can be very restrictive...especially in the "top left" corner.)
If you are not sure, run an experiment in the different configurations. Have your "figure of merit" be component temperatures as well as internal case temperatures. For my particular system (5820K & 2xTitan X Pascal...all heavily overclocked...Corsair Air 740 case), I have 3 120 mm AIO units all running as intake (push/pull fans), 2 140 mm fans on bottom as intake, 2 140 mm fans on top as exhaust, and 1 140 mm fan in back as exhaust. Airflow through the radiators to cool the ~750 W of power dissipation is deterministic and only a function of fan speed. Airflow is achieved in the case through the extra bottom intakes and all air is pushed out the top and back. Both internal case temperatures and CPU/GPU temperatures were the coolest this way.
Cheers!
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