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Need advice on my first custom loop

post #1 of 29
Thread Starter 
So this will be my very first foray into the world of water cooling, and yes, I will start right off with a custom loop. I would truly appreciate your comments both on the parts I'm looking into using and the build plan I have in mind. First off, the loop will go in a new rig I'm building from scratch, housed inside a Be quiet Dark Base 900. I will try to run it as silent as I can. The radiator choice may seem overkill at first (I dunno), but I believe that the more radiator volume I have the less I will have to spin my fans and thus the more silent my system will be. By the way I might not assemble this before May, but I figure you can never start planning too early thumb.gif

The specific parts I'm intending to cool are

  • AMD Ryzen 1800X or 1600X
  • Nvidia 1080 Ti SLI

Perhaps needless to say, I will overclock these. wink.gif

This is my current shopping list for the custom loop:

  • Radiators: Hardware Labs Black Ice Nemesis 420GTX (45 mm) + Hardware Labs Black Ice Nemesis 280GTS (30 mm)
  • Pump: EK-XRES 140 Revo D5 PWM Glass
  • Fans: Noctua NF-A14 industrialPPC-2000 PWM 140mm
  • GPU blocks: EK + backplate
  • GPU terminal: EK-FC Terminal DUAL Parallel 3-Slot
  • CPU block: EK-Supremacy EVO AMD
  • Fittings: Bitspower 1/4 " to 13/10mm
  • Tubing: EK-DuraClear 9,5/12,7mm 3M RETAIL

Related Questions:

  • Forgot anything? biggrin.gif
  • Should I use a parallel or a serial configuration for SLI? The way I understand it is that parallel would give me equal temps across both cards while on serial the second card will get warmer. So the choise is obvious?
  • I'm particularly interested in feedback on the fittings, as I haven't researched them yet. Is there a better fitting option out there?


Now onto my build plan:



To explain this, I'm a positive pressure guy. Positive pressure all the way. The 420 will have to be an intake because the alternative configs for achieving positive pressure are worse as far as I can tell. Now in order to avoid filling the case with too much hot air from the front radiator (which would result in higher temperatures for all components and less cool air to feed the top radiator), I will have two extra fans (bottom in and rear out) recycling air. The one at the bottom (not quite sure how I'll fit it in the Dark Base 900, will have to do some modding probably) will be quite crucial, it being the only one that brings in cool air from outside. Any comments? What do you think about exchanging the 420 with another 280 and put another air intake fan in the slot that becomes available?
Edited by Rhadamanthys - 4/7/17 at 2:00pm
post #2 of 29
I would not reduce rad surface area to replace it with a fan. The surface area you have right now is adequate for low/mid speed fans with the load that you will be applying.

GPUs definitely run parallel. No reason not to.

Looking at pics of the case, you should be able to mount a fan on the bottom without issue.
Image_02.jpg

Looks like you cannot install 2x420 radiators. Maximum would be 420(140.3) and 360(120.3) or 280 (as you have already stated.

Here you can see a 420 and 360 combo. Pulled the image from a quick Google image search.
1sSUTEI.jpg

With the somewhat restricted top of the case, I would think that some of the exhaust heat from the upper radiator may recirculate back into the case if not all of the fan positions are utilized. I have seen this happen on different cases with restricted covers. You would either need to seal the top around where the radiator is, or populate all of the fan positions like in the image above.

If you put a thin 420 on top, with a 280 on the front, you may be able to fit a thin 240 on the bottom... front, bottom and rear intake, top exhaust...

My suggestion, if you know that you will be building in this case, get it first before ordering radiators. Then cut some cardboard to scale of the radiators and see how everything fits inside.
Edited by EMUracing - 4/6/17 at 3:19pm
post #3 of 29
Thread Starter 
Hey thanks for your input. I do actually have the case here already. I did measure if the HWL 420GTX will fit in the front, and it will. Regarding the top, I do prefer going with 140 mm fans. So if you're saying I'm good on the surface area, I'll stick with 420 + 280.

Good point about exhaust air recirculating back through the vacant fan spot up top. I will see what my temps are and if they're not satisfactory, that'll be a place to look for improvement. I am aware of the risk the restricted top cover carries, that's actually why I'm considering leaving that first fan spot free in the first place. I read some feedback about the case and someone was saying they had issues with three fans exhausting from the top, because the vents and holes in the cover wouldn't allow for all the warm air to leave if it was being pushed by three fans.

As you can see in the second image you posted, there is space for a bottom fan despite the PSU and a thick front radiator. However, the fan won't align to the pre-drilled fan holes. I will see if I can drill my own, but the bottom dust filter is sitting right below and I'm not sure if there's space for fan screws.

EDIT: I see if I can go with a low profile fan in the bottom, just found one which might suit me there and it's only 15 mm deep.
Edited by Rhadamanthys - 4/7/17 at 12:26pm
post #4 of 29
What power supply are you going with? A short PSU will give enough clearance for the 2nd bottom fan to be installed in the proper place.

Not having a fan in the top will allow that air to recirculate back into the case. This would be worse than having all of the fan positions taken up, as then all of that air would be forced out. I prefer cases that are designed more for good airflow than aesthetics. The current trend is solid paneling with small slots for airflow, which I find to be a little lacking as far as cooling is concerned.
post #5 of 29
Thread Starter 
The PSU I'll be using is 180 mm, it's not here yet but I've already measured it inside the case. It's too long so it'll cover the outer fan holes. I may be able to fiddle with the PSU bracket (one of the few flaws of the Dark Base 900) to gain more space, but I fear it won't be enough.

As regards the top fan issue, I'll see what my temps are and may experiment with putting an exhaust fan there. If the front radiator stretches out too far I may still be able to sit the fan on top of the fan panel instead of having it attached below. I'm hesitant though cause I'll then have 4 intake vs 4 exhaust fans and I'm aiming for positive pressure. I know I can always have the intakes spin higher, but that comes with increased noise.

I was gonna order the radiators now, but I'll be on vacation in about a week's time and I'm afraid I won't be here when they arrive. Don't wanna have them with the neighbors that long rolleyes.gif When I get back and have begun installing everything, I'll post some pictures.
post #6 of 29
Thread Starter 
So the radiators are finally here! Still waiting on a shipment from EK before I can start building. Gonna post an updated loop diagram later. For now I'm wondering if one litre of coolant will be plenty for my setup (CPU block, 2 GPU blocks, EK D5 pump with 200 ml res, 420x45 + 280x30 rad). Reason I'm asking is that I'll be using an additive which mixed with distilled water will make for 1 litre of coolant, and I'm unsure if I should get a second bottle or not. Any ideas?
post #7 of 29
Quote:
Originally Posted by Rhadamanthys View Post

So the radiators are finally here! Still waiting on a shipment from EK before I can start building. Gonna post an updated loop diagram later. For now I'm wondering if one litre of coolant will be plenty for my setup (CPU block, 2 GPU blocks, EK D5 pump with 200 ml res, 420x45 + 280x30 rad). Reason I'm asking is that I'll be using an additive which mixed with distilled water will make for 1 litre of coolant, and I'm unsure if I should get a second bottle or not. Any ideas?

I'd say get a second bottle. You can also go past 1L if needed, but not past 1.5L per bottle.

My loop consists of a 80ml res (filled), a CPU block/pump combo, 240x62 + 240x38 rads and previously had an EK waterblock when I had a 290 and took up about 1.2L. I had soft tube piping, but it's length is about similar or slightly less than what you have.
    
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CPUMotherboardGraphicsRAM
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CoolingCoolingCoolingCooling
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post #8 of 29
Quote:
Originally Posted by Rhadamanthys View Post

So the radiators are finally here! Still waiting on a shipment from EK before I can start building. Gonna post an updated loop diagram later. For now I'm wondering if one litre of coolant will be plenty for my setup (CPU block, 2 GPU blocks, EK D5 pump with 200 ml res, 420x45 + 280x30 rad). Reason I'm asking is that I'll be using an additive which mixed with distilled water will make for 1 litre of coolant, and I'm unsure if I should get a second bottle or not. Any ideas?

I think you should have just the right amount. It's ok to mix in another 250ml of water if you need it into the suggested 1L for concentrate, it'll dilute the color a teeny bit but its better than buying/waiting on more fluid
post #9 of 29
Thread Starter 
While I'm waiting on the shipment from EK (do they always take that long?), I'm pondering the setup of my water loop. This one comes pretty close to what I have in mind right now:


(I'll be using this case, too)

Similar to the above setup, my 280 rad will be up to with the ports to the "left", and the 420 rad will be at the front with the ports on the bottom. Pump will be this:



So basically I might use one of the top ports of the pump as inlet...

  • Will the stock lid of the pump res suffice for what I'm planning or should I be getting the multiport?
  • What are the implications of going with this particular setup? Please be aware I have no idea about water loop physics tongue.gif Will the reservoir fill up completely if I do this? If so, will the coolant rise up in order to "level out" and thus flow out of the top port whenever I refill or open it for letting air out?
  • I read somewhere that I might have to open one of the fill ports every once in a while to let any air out of the loop. Do I really need to do this? And what about if the reservoir is filled completely anyway?
post #10 of 29
Thread Starter 
Quote:
Originally Posted by Kokin View Post

I'd say get a second bottle. You can also go past 1L if needed, but not past 1.5L per bottle.

My loop consists of a 80ml res (filled), a CPU block/pump combo, 240x62 + 240x38 rads and previously had an EK waterblock when I had a 290 and took up about 1.2L. I had soft tube piping, but it's length is about similar or slightly less than what you have.

Quote:
Originally Posted by Wafflecooler View Post

I think you should have just the right amount. It's ok to mix in another 250ml of water if you need it into the suggested 1L for concentrate, it'll dilute the color a teeny bit but its better than buying/waiting on more fluid

Thanks for your comments. I think I might just get another bottle just in case, I'm still waiting for other components to arrive anyway and whichever amount I don't need I can use for a refill down the road.
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