• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

First custom loop

Joined
May 30, 2018
Messages
1,890 (0.88/day)
Location
Cusp Of Mania, FL
Processor Ryzen 9 3900X
Motherboard Asus ROG Strix X370-F
Cooling Dark Rock 4, 3x Corsair ML140 front intake, 1x rear exhaust
Memory 2x8GB TridentZ RGB [3600Mhz CL16]
Video Card(s) EVGA 3060ti FTW3 Ultra Gaming
Storage 970 EVO 500GB nvme, 860 EVO 250GB SATA, Seagate Barracuda 1TB + 4TB HDDs
Display(s) 27" MSI G27C4 FHD 165hz
Case NZXT H710
Audio Device(s) Modi Multibit, Vali 2, Shortest Way 51+ - LSR 305's, Focal Clear, HD6xx, HE5xx, LCD-2 Classic
Power Supply Corsair RM650x v2
Mouse iunno whatever cheap crap logitech *clutches Xbox 360 controller security blanket*
Keyboard HyperX Alloy Pro
Software Windows 10 Pro
Benchmark Scores ask your mother
So, since the idea's been bouncing around in my head for several months with no sign of leaving, I've decided I want to install my first full custom loop in my system. Specs are as listed in my profile.

Very much in the early phases, but I figured I'd start a thread where all of my questions and ideas can be contained. I'm sure I'll have at least a few ideas that are terrible and/or stupid and I want this to go down right. Just a repository where I can continually dump bumbles, rants, dumb questions... so on. One part log, one part support group, heh.


As far as budget goes... I don't really have one. I expect that this will be costly. I don't have an infinite amount of cash to toss at this, but if I need to spend more, I kinda just see that as nothing more than a little bit more time. I can wait if it means I'm getting better stuff. I will cut zero corners to get what I need to have a really good finished product. I will buy whatever is needed for quality and if I can't afford it I will just have to wait. So I'm not looking to cheap out on parts, nor am I looking to take the easy route building it. I want the best possible result with the least possible limitations (within reason.) And I want it to look as good as possible. I'm strongly leaning towards glass tubing, too. Also worth mentioning, the 2060 probably will not be my last GPU - a higher-tier upgrade will happen at some point. So it may one day need to accommodate for a little more heat than now. While this is largely a looks thing, I do also want the best performance I can get... enough that playing with all-core overclocks on my 3900X is worth it. I want to cross that line with it where it fully surpasses what can be done on air, with something that looks cool.

Basically, I don't care much about the expense or difficulty curve... I will spend and learn what I need to in order to pull it off. I feel like I understand enough about the physics involved - and nothing in the process is new to me as far as skillset goes. I won't be so easily talked into going the easier/cheaper way. :D


I do kind of have ideas about what the loop will need to have. I'm sure there are some limitations with an H710 (size/airflow,) but I keep coming back to the look of it and access is pretty good - it's a great builder's case. I can easily reach front panel from all sides, top panel is removable, two decent reservoir spots. Both top and front panels can accommodate 360mm or 280mm radiators. I wouldn't bet on anything much thicker than 45mm fitting w/ fans, which to me is acceptable. The cable management bar is movable/removable... same as the HDD cage under the shroud. The shroud has holes that might help with pump/res mounting, as well as two of those slits for reservoir clips on the cable bar and next to the expansion slot bay. It won't take any giant reservoirs, but maybe it would do two small ones! Here's the layout.


I have some idea of what I want to do, but right now I'm just looking at what my options are. What are some good vendors in the USA? I've been looking for one-stoppers but it seems they're mostly brand-segmented. If that's just how it is I will order from different vendors, but because of that, I'd need to know what parts are good from who. What products/brands should I be looking out for when it comes to performance? I have no idea where to even start shopping.

What would an experienced liquid cooling builder be considering doing if they were me? I only know a few things for sure.

I want to go dual-rad - probably 30-40mm (I probably can't go much thicker than 45mm.) I was thinking a 360 up top and a 280 in the front. I could put another 360 in the front, but I'm considering using that lower space for a pump and/or res and/or drain. What really is the rule on thickness? I don't think I'd want to use a slim rad, but thinner might be better in my case, simply because of the slightly restrictive airflow to the rads. I don't want to have to compensate with louder, higher-pressure fans. Not sure... but ideally I want the thinnest possible while still having enough radiator-real-estate to more than cover all of the heat from my components - a good bit of headroom might be needed for a higher-powered GPU, or pushing a 3900X-manual-OC (which amounts to a ton of heat.) Really like some input on that... maybe some suggestions on what to look at buying. I say all of this stuff, but if I have to get thicker radiators and shell out for the higher-end fans to keep it quiet while moving enough heat through them and the case openings, I'll still do that.

Also, how does fan direction work in a loop with top and front rads? I'd assume I'd want the top to be exhaust and the front to be intake... right?

Single pump/res (a smallish combo unit would probably work best - though I could mount a discreet pump down below the front gap in the PSU shroud.) I'm not sure there's anything small enough to fit in that rear spot but one way or another I'm sure there's something that'll fit up front. I could even be special and clamp one sideways to the shroud, with the pump again down in that front gap in the shroud. Since it's responsible for two blocks and rads, it obviously needs to be a good pump. I'd be curious about which pumps are best for this type of loop. Combo unit would be nice, but if I have to run a discreet pump to have one that's decently powerful but not ridiculously loud/unreliable, so be it. My concern is that pump on one of those really small combo units might not be good enough. If I have to keep them separate with a large pump and small discreet res, that's fine. I'm also assuming one really good pump is enough. I'd rather not have two discreet loops for the sake of not overcrowding the build. As far as a res goes, I don't expect to use anything very big... mostly just gonna be a fill spot. It'd be cool to be able to find one that fits in that little rear spot. A bigger one might not fit in the cable bar spot anyway, as my GPU is triple-slot and starts to just in front of it. Again, any suggestions of what to look at would be appreciated.

Blocks, I can kinda work out myself. I need an AM4 block and a full-cover GPU block compatible with my specific card. Are EKWB blocks any good? I saw a couple I liked. But I haven't looked much into blocks, yet. The EKWB ones seem a little overpriced, though they look really great. I'm sure there are other people making good blocks out there.

Also, any information on glass tubing and good fittings for glass would be much appreciated. I know how to cut glass tubing and I understand how sizing works with all of that stuff. I just don't know where to get what I need or what to look for.


Any advice or tips are much appreciated, too. Even general stuff... things relating to the whole process, features and design aspects to add to your loop for easy care, potential problems with certain things, good practices and all of that. But what would really be a huge help right now would be just having some places to look at stuff... just browse for parts so I can start to work up a big picture and start plotting out the build.
 
D

Deleted member 185158

Guest
That's a lot of questions my man!! You're going to love your new custom loop build and the superior cooling advantages.

So what I look at is the waterblock. You want something that's heavy, lots of copper. Raystorm Pro would be one to consider, and that would be my bottom line.
So depending on how serious you want to get and how much money to throw at a custom build, it'll be pretty much a forever build. You'll use it likely far into the future as long as they release brackets for future chips. So a top end waterblock would look like this https://www.aquatuning.us/water-coo...MuCiEr4MgEI3P_ldF0f7UFWKvW56eEORoCNsoQAvD_BwE
That's nickle plated silver. I'd lap the nickle off the base.
1014542-1.jpg
Aquatuning is a site I frequent with a rather long wish list lol. There's a few other venders, this one is a favorite.

So radiators. Well you want to look at full copper and fin density and passes. The more the better.

Tubing size is a matter of preference in most cases. Hard tubing looks cool, makes for a fun challenging build.

Pumps. Well there's a lot of choices. I recommend variable speed with high GPM. Look around and find the top 3 choices pick one.

You want to build with a list and let people tweak it for you. A standing budget helps a lot, or we can really get crazy and build you a very top end custom loop with all the bells and whistles. :D
 
Last edited by a moderator:

INSTG8R

Vanguard Beta Tester
Joined
Nov 26, 2004
Messages
7,966 (1.12/day)
Location
Canuck in Norway
System Name Hellbox 5.1(same case new guts)
Processor Ryzen 7 5800X3D
Motherboard MSI X570S MAG Torpedo Max
Cooling TT Kandalf L.C.S.(Water/Air)EK Velocity CPU Block/Noctua EK Quantum DDC Pump/Res
Memory 2x16GB Gskill Trident Neo Z 3600 CL16
Video Card(s) Powercolor Hellhound 7900XTX
Storage 970 Evo Plus 500GB 2xSamsung 850 Evo 500GB RAID 0 1TB WD Blue Corsair MP600 Core 2TB
Display(s) Alienware QD-OLED 34” 3440x1440 144hz 10Bit VESA HDR 400
Case TT Kandalf L.C.S.
Audio Device(s) Soundblaster ZX/Logitech Z906 5.1
Power Supply Seasonic TX~’850 Platinum
Mouse G502 Hero
Keyboard G19s
VR HMD Oculus Quest 2
Software Win 10 Pro x64
Aqua Computer user here I second Shrimps Block recommendation.
 

INSTG8R

Vanguard Beta Tester
Joined
Nov 26, 2004
Messages
7,966 (1.12/day)
Location
Canuck in Norway
System Name Hellbox 5.1(same case new guts)
Processor Ryzen 7 5800X3D
Motherboard MSI X570S MAG Torpedo Max
Cooling TT Kandalf L.C.S.(Water/Air)EK Velocity CPU Block/Noctua EK Quantum DDC Pump/Res
Memory 2x16GB Gskill Trident Neo Z 3600 CL16
Video Card(s) Powercolor Hellhound 7900XTX
Storage 970 Evo Plus 500GB 2xSamsung 850 Evo 500GB RAID 0 1TB WD Blue Corsair MP600 Core 2TB
Display(s) Alienware QD-OLED 34” 3440x1440 144hz 10Bit VESA HDR 400
Case TT Kandalf L.C.S.
Audio Device(s) Soundblaster ZX/Logitech Z906 5.1
Power Supply Seasonic TX~’850 Platinum
Mouse G502 Hero
Keyboard G19s
VR HMD Oculus Quest 2
Software Win 10 Pro x64
Thanks.
Here's a TPU review

If I didn’t already have an OG Cuolex Kryos I’d have me one of those :love:
 
Joined
Nov 13, 2007
Messages
10,233 (1.70/day)
Location
Austin Texas
Processor 13700KF Undervolted @ 5.6/ 5.5, 4.8Ghz Ring 200W PL1
Motherboard MSI 690-I PRO
Cooling Thermalright Peerless Assassin 120 w/ Arctic P12 Fans
Memory 48 GB DDR5 7600 MHZ CL36
Video Card(s) RTX 4090 FE
Storage 2x 2TB WDC SN850, 1TB Samsung 960 prr
Display(s) Alienware 32" 4k 240hz OLED
Case SLIGER S620
Audio Device(s) Yes
Power Supply Corsair SF750
Mouse Xlite V2
Keyboard RoyalAxe
Software Windows 11
Benchmark Scores They're pretty good, nothing crazy.
exciting stuff... that's a nice case for a loop too! Tons of space and options

If you're going to over-rad it like that make sure the pump has enough head to push through two rads and two blocks, I would also set both rads as intake and let the exhaust fan do its thing.
 
Joined
Dec 29, 2010
Messages
3,456 (0.71/day)
Processor AMD 5900x
Motherboard Asus x570 Strix-E
Cooling Hardware Labs
Memory G.Skill 4000c17 2x16gb
Video Card(s) RTX 3090
Storage Sabrent
Display(s) Samsung G9
Case Phanteks 719
Audio Device(s) Fiio K5 Pro
Power Supply EVGA 1000 P2
Mouse Logitech G600
Keyboard Corsair K95
Regarding the 360 and 280 rads...

I just wanna mention that you probably don't want to do that unless you absolutely have to because you'll be undersized on air intake. If you go push on both rads you won't have enough intake. If you go push on one rad and pull on the other it'll be recirculating used air and reduce potential performance levels. Stuffing the case full of rads never ends up with an ideal scenario.
 
D

Deleted member 185158

Guest
Regarding the 360 and 280 rads...

I just wanna mention that you probably don't want to do that unless you absolutely have to because you'll be undersized on air intake. If you go push on both rads you won't have enough intake. If you go push on one rad and pull on the other it'll be recirculating used air and reduce potential performance levels. Stuffing the case full of rads never ends up with an ideal scenario.

Yep. Modded many side panels because of this!
 
Joined
Jul 16, 2014
Messages
8,118 (2.27/day)
Location
SE Michigan
System Name Dumbass
Processor AMD Ryzen 7800X3D
Motherboard ASUS TUF gaming B650
Cooling Artic Liquid Freezer 2 - 420mm
Memory G.Skill Sniper 32gb DDR5 6000
Video Card(s) GreenTeam 4070 ti super 16gb
Storage Samsung EVO 500gb & 1Tb, 2tb HDD, 500gb WD Black
Display(s) 1x Nixeus NX_EDG27, 2x Dell S2440L (16:9)
Case Phanteks Enthoo Primo w/8 140mm SP Fans
Audio Device(s) onboard (realtek?) - SPKRS:Logitech Z623 200w 2.1
Power Supply Corsair HX1000i
Mouse Steeseries Esports Wireless
Keyboard Corsair K100
Software windows 10 H
Benchmark Scores https://i.imgur.com/aoz3vWY.jpg?2
That case design does not promote the best airflow, so if you're installing 2 radiators than consider modding the panels to increase airflow.
 
Joined
Nov 6, 2019
Messages
326 (0.20/day)
Location
Nuremberg
Processor Core i7 8700K@5 GHz
Motherboard MSI Z370 Gaming Pro Carbon
Cooling 2xEKWB Rads, EKWB Reservoir 250, Aqua Computer Kryos Next CPU Cooler, Phanteks Glacier GPU Cooler
Memory 16 GB DDR4 GSkill Trident Z 3200
Video Card(s) Asus ROG STRIX RTX 2080 O8G (GPU@2115 MHz/VRAM@7800MHz)
Storage 1x Samsung Evo 840 SSD 256, 1x WD Blue 1 TB HDD
Display(s) Asus ROG Swift PG248 1080p Display/144Hz/G-Sync
Case Fractal Design R6 with Window
Audio Device(s) Realtek onboard
Power Supply be quiet 650W Straight Power
Mouse Logitech G502
Keyboard Cherry KB
Software Win 10 Pro
Benchmark Scores FireStrike: 25953/Extreme: 13141/Ultra: 7099/TimeSpy: 11426/Superposition: 7667/CinebenchR20: 3916
Here is an US-Shop where you can buy Aqua Computer and Alphacool Products:

I would go for a big tower when doing water cooling. I did my first custom loop in a mid tower too, the Fractal Design Define R6 and the components fit, but it get's a little narrow ;-)

- Case
So my next case for water cooling will be the new Phanteks Enthoo Luxe 2, or Enthoo 719 cause they had to rename it:

You have plenty of space also for bigger radiators and it looks nice in my opinion.

- CPU Cooler:
I have the Aqua Computer Cuplex Kryos Next with Vision and I love this cooler, cause it has an LCD display to show you infos to water temp/CPU temp/GPU temp and so on. You can setup this cooler with a software of them, the aquasuite, which you get for free when you buy this product. The temperature is no problem at all, I don't get past 65/66 degrees with my OC Core i7 8700K@5 GHz with it.

That's the AM4 cooler from their german site, but perhaps they also deliver to US or you can get it in a shop there

Or you get an EKWB CPU Cooler, they also make premium water cooling products and they deliver to US:

- GPU Cooler:
I have a Phanteks Glacier full water block and it works very good. Max temps of my RTX 2080 of 51/52 degrees even in Benchmarks like Firestrike or Superposition. In Games mostly in the 40s. If you buy a RTX 2060 then get an Asus Rog Strix model as the Phanteks cooler fits to the PCB.
The Phanteks cooler look also very nice and it also fits for the RTX 2070 ROG Strix Models. They have a compatibility list on their site where you can see what block fits to your card.

EK has also a water block for the RTX 2070 Asus Strix (fits also for some ROG Strix 2060 Models):

Unfortunately, you have the biggest selection of full water blocks at the time with an RTX 2080/2080Ti model...

If AMD is also in your consideration then EK has several water blocks for the RX 5700/5700XT Navi models:

You also have to consider if you need a back plate or not. Not every full water block is compatible to the factory back plate. Then you either do it without back plate, as back plates are often only for design or you buy a back plate for your water block, in example EK:

- Radiators:
I have 2 slim radiators from EK and they do a great job. Only 27mm diameter one 360mm and one 240mm. The 360mm is in the front pulling air inside, the 240mm rad is in the top pushing air outside. As warm air goes up I decided for this arrangement.
This is the coolstream radiator series of EK:

Another company making great radiators is Alphacool with their NexXxoS Line:

- Pump:
I have an D5 pump from Aqua Computer with tacho signal and PWM signal, so you can set the pump speed with the aquasuite software. You can mount it under a reservoir or you use a pump case, I have one from EK:

The solution to mount it under a reservoir is the space-saving one:

- Reservoir:
Must fit in your case, so the case mostly decide which reservoir you can take. There are plenty of companies out there making nice reservoirs, I have one from EK:

But there are many more, very nice looking is also the Glacier from Phanteks:

It depends also of your decision to mount the pump at the reservoir or to use a stand alone pump. If you use the latter one you can use every pump and reservoir combo, if you want the first one you can either use a D5 pump or a DDC pump. The phanteks reservoir only takes DDC pumps to mount on for example.

- Tubing:
Belongs to you if you use soft or hard tubing. The result is the same but in my opinion hard tubing has the cleaner look. If you decide for hard tubing you must choose between PETG or acryl. For both you need a heat pistol to bend. PETG needs not so high temps, 150-200 degrees are sufficient to bend, for acrylic you need 350-400 degrees. For acrylic you also need a saw to cut, you can use iron saws and sandpaper to smooth out your cut zone. I have EK 16/12mm acrylic tubes, but next time i will use 12/10:

- Fittings:
I use EK hard tube fittings and they do also a great job. No problem with leakage or so, didn't loose one ml in nearly one year now.

- Some considerations:
You also need a drain valve when you want to drain your water. I use a Bitspower valve, it's best assembled at the lowest point in your system. A system to control your radiator fans according to your water temp would also be nice. I have an aquaero 6 LT USB system from Aqua Computer:

Some facts to radiators:
You get better cooling with thicker ones but then you also need air coolers with higher static pressure. If you are using thinner radiators static pressure is not so important. If you use two radiators then one should take air inside and the other outside. According to tests it makes nearly no difference if you use push/pull, push or pull at one radiator. Push/pull has the downside that your rad gets very thick as you need air coolers on both sides. It also makes no difference how the radiators are arranged. In my system water goes from the reservoir to the pump, then to GPU, then to CPU, then in top rad, to the front rad and again in the reservoir. Many people ask if it would be better when water goes from reservoir to GPU, then to first rad, then to CPU, to second rad and again in reservoir. According to tests that makes no difference. CPU gets not higher in first case or lower in second.
There are also so called XFlow Radiators where intake and outtake are at the opposite end of the rad. For example one Alphacool XFlow Rad:

According to tests it makes no difference if you use an XFlow rad or not but perhaps it would be better from design to work with XFlow rads cause you need less tubes or so. Some XFlow rads also have two connectors on one side so that you can use one of them to assemble a drain valve:

Here are some pics of my system:

- Pump with drain valve:


- CPU Cooler Kryos Next Vision:


- Radiator Top:


- GPU Cooler:


- Reservoir:
 
Last edited:
Joined
Jun 2, 2017
Messages
7,936 (3.15/day)
System Name Best AMD Computer
Processor AMD 7900X3D
Motherboard Asus X670E E Strix
Cooling In Win SR36
Memory GSKILL DDR5 32GB 5200 30
Video Card(s) Sapphire Pulse 7900XT (Watercooled)
Storage Corsair MP 700, Seagate 530 2Tb, Adata SX8200 2TBx2, Kingston 2 TBx2, Micron 8 TB, WD AN 1500
Display(s) GIGABYTE FV43U
Case Corsair 7000D Airflow
Audio Device(s) Corsair Void Pro, Logitch Z523 5.1
Power Supply Deepcool 1000M
Mouse Logitech g7 gaming mouse
Keyboard Logitech G510
Software Windows 11 Pro 64 Steam. GOG, Uplay, Origin
Benchmark Scores Firestrike: 46183 Time Spy: 25121
If you want to go with a loop and are using a AM4 or Intel system the Alphacool Eisbaer are a great way to start. The Eisbaer is a CPU AIO that comes with quick connect adaptors. You could easily add a GPU(or 2) to the block with any GPU waterblock.
 
Joined
Nov 7, 2017
Messages
1,470 (0.62/day)
Location
Ibiza, Spain.
System Name Main
Processor R7 5950x
Motherboard MSI x570S Unify-X Max
Cooling D5 clone, 280 rad, two F14 + three F12S bottom/intake, two P14S + F14S (Rad) + two F14 (top)
Memory 2x8 GB Corsair Vengeance bdie 3600@CL16 1.35v
Video Card(s) GB 2080S WaterForce WB
Storage six M.2 pcie gen 4
Display(s) Sony 50X90J
Case Tt Level 20 HT
Audio Device(s) Asus Xonar AE, modded Sennheiser HD 558, Klipsch 2.1 THX
Power Supply Corsair RMx 750w
Mouse Logitech G903
Keyboard GSKILL Ripjaws
VR HMD NA
Software win 10 pro x64
Benchmark Scores TimeSpy score Fire Strike Ultra SuperPosition CB20
Since Ryzen tends to get hot in smaller area than normal, cpu block won't have the biggest impact,
but going thru a couple of test/reviews the XSPC Raystorm pro seems to be the best.

The Eisbaer 240/280 is nice if you dont care to mess with stuff and want custom loop like temps on a aio.

If you can, have both rads setup as exhaust, the remaining heat produced by MB is virtually irrelevant,
that you wont see a big difference on temps vs drawing air in from outside, at least with 3xxx cpu (where heat transfer is bottleneck).

Dont waste your money on pre-mixed coolant, use distilled or lab-grade water and add some dead-water to it.

Even if you want to use hard tubing, why not try with soft tubing first.
Less time/work to get it done (especially on first loop), and a bit easier to change routing if you run into "problems" with the layout.
This way you can get it up and running, see its performance/test for leaks etc, and later on spend the time perfect it
and replace with hard tubing.

The D5 is a great pump, but i also like the modded eheims, being used in LC for more than a decade.

With the gpu i personally will not spend the money on the block to connect to the loop.
I just get a card that has a aio (usually 120/140 rad) with the rad mounted on rear exhaust.
Any time i upgrade i just swap the card incl aio for a newer unit.
2070S is about 600$, 2080 around 650, 2080S about 720$ and up.
Dont have to worry about matching proper block to card/possible warranty problems,
and usually its still less of a price difference than getting a block yourself,
and will still require the time to swap the cooler, incl when you plan to sell the card.

For thermal "paste" i prefer the liquid metal stuff from Coollaboratory, since its the cheapest (10-15$) of all the liquid metal stuff,
and so far have not seen any other brand doing significantly better temps with identical setup.
 
Last edited:
Top