Watercooling cm690ii initial design

wildman

wildman

wildman

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Firstly apologies for the dreadful picture, graphics is not my strong point.

I am starting to accumulate the gear I am going to need so I thought I better start thinking about the layout

I am thinking the following

Dual Loop.
Loop 1 CPU 240 + 120 rad
Loop 2 GFX 240 rad

the first design I came up with is as follows. The rads can't change position as this is the physical limitation of the case. I am worried about the air flow though

8425672736_f19a131ace_c.jpg


I am going to be using Scythe GT 1850rpm fans on all rads and the front intake.

Main worry is that the push fans at the bottom are going to blast hot air up then the front intake wil blast towards the rear / top rads which are for the cpu resulting in not so great performance or is this not really that big a deal ?

I am mainly doing this becasue I like the challenge of getting this all into a CM690ii and of course I wouldn't mind attempting the hallowed 5ghz on my 2500K

Is there anything I should be doing better on this ?

The rad choices are made as based on my measure ups these will physically go where they are indicated on the diagram above
 
Airflow seems good to me, 3 intake and 3 out so should be balanced if you have them running at the same RPM.

Can the bay res run the loop in serial? The dual loop would seem pointless especially if the bay res doesn't have chambers for the loops (not that it would make much of a temp difference anyway). A serial loop would give you the following benefits:

- Tidy loop (big factor if you're concerned over aesthetics)
- Redundancy (if a d5 fails you'll still have a pump running, and a single d5 could handle it no problem).

Sure there might be a negative temp difference, perhaps 1 degree give or take which is nothing, water flows through the loop so fast there are no "hot" or "cold" areas, it just reaches equilibrium everywhere.

If you still wanted to go dual loop though, I'd say the 120 rad for the CPU loop would be overkill, a 240 would do just fine.

Hope that helps :)
 
As above said go with a nice big single loop. I would drop the dual d5 pump setup and just get a single D5 setup.
x2 240 is more than enough to cool the cpu + gpu so it's just a waste of money buying the single 120mm rad.
 
mjones1 said:
As above said go with a nice big single loop. I would drop the dual d5 pump setup and just get a single D5 setup.
Click to expand...

+1

There is going to be too much noise and vibrations from the dual D5, too much tubing in the case and there will no appreciable difference in temps

But i would go with radiators in your op with the AP15s :)
 
I have a 690 II as well and I'm contemplating my first loop. Is there a reason to go for that specific rad on the bottom? Is it because of the tightness of space in there?
 
There's really no need to splash the cash on two D5's for that loop, one is more than enough, besides which there's really no advantage to two separate loops vs. a single loop.

Then if you get rid of the unneeded second pump you can also eliminate the noisy bay res in favour of a quieter cylinder res or a res that simply install on top of the D5.
 
iB CoMpL3XiTy said:
There's really no need to splash the cash on two D5's for that loop, one is more than enough, besides which there's really no advantage to two separate loops vs. a single loop.

Then if you get rid of the unneeded second pump you can also eliminate the noisy bay res in favour of a quieter cylinder res or a res that simply install on top of the D5.
Click to expand...

pumps and res are already in my possession as I got them as a package from MM. Was dual looping mainly for asthetics as I wanted 2 different coolant colour as the internals are pretty plain. I could set the res and pumps in series though as this is an option and then make it a single loop.

Looking at the space available to me and the cable management I know that will come with a non modular PSU there would be close to no space for a cylinder res.
 
Clav said:
I have a 690 II as well and I'm contemplating my first loop. Is there a reason to go for that specific rad on the bottom? Is it because of the tightness of space in there?
Click to expand...

the rad is 275mm long, my PSU is 170mm long so going for that over say the 286mm EK is the difference between getting out the dremel or leaving the case intact. I opted for leaving the case intact because jack the ripper would have better dremel action than me :)
 
took it back to the drawing board and came up with this

8430055793_81629cee88_b.jpg


changes:

1. Scrap the 120mm rad at the back
2. Run both pumps in series, achieved by going from P1 Out to P2 IN via CPU block then P2 Out to GPU > RAD > RES

so loop would be Res > P1 Out > RAd > CPU > P2 IN > P2 OUT > GFX > RAD > P1 IN

still get redundancy if 1 pump goes for a burton, but doesn't do much for tube management although I should be able to manage the tubing ok to make it look neat
 
Which dual D5 pump top/res combo will you be using?
You will have to 90 or 45 degreee fittings to run the rad at the bottom to the bay res.
 
mjones1 said:
Which dual D5 pump top/res combo will you be using?
You will have to 90 or 45 degreee fittings to run the rad at the bottom to the bay res.
Click to expand...

koolance 452x2 rev 1.3. with mounted Alphacool D5 varios. Already have 45° fittings for the bottom rad. Will also be changing the stock Coolermaster 140mm front fan to a 120 to get some additional clearance at the barbs
 
and so the project has started albeit slowly.

I am still in gear collection phase and here is what I have so far:

Koolance RP 452X2 dual bay res with dual Alpha D5 pumps
Bitspower 45° 1/2" compression fittings x 4
Koolance 1/2" compression fittings x10
XSPC 120mm fan gaskets x 10
Twin 3mm Ultra Bright UV LED Kit
Phobya LED-Flexlight LowDensity 60cm UV
Heatkiller GPU-X³ 79X0 waterblock and backplate

Here is what I am getting when my bonus arrives next week:

EK-Supremacy - CPU Waterblock - Copper Plexi
Hardware Labs Black ICE Radiator GTX-Lite 240
Hardware Labs Black ICE Radiator GTS-Lite 240
Lamptron FC2 5.25" Bay Fan Controller - Black
Mayhems Pastel - UV White Coolant 1L x 2
OcUK Tech Labs - Zaward Golf III Fan 120mm ZG3-120TL TRIPLE PACK
Bitspower Black Sparkle "T" Fitting - 180 Degree Water Cooling Accessory
Koolance Fitting Single, *Black* Swiveling Elbow
XSPC HighFlex Hose 1/2" ID, 3/4" OD, 19/12.7mm, 2m, Clear

then begins the challenge of getting all of this into a cm690ii without making it look like a train wreck.

Once everything is here I will start a thread under projects with pictures of all the gear and progress.

All I need is a project name, thinking of christening this project TARDIS. because the Tardis looked small on the outside but had a truck load of gear in when you went in :)
 
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