Hey guys new to the forums. Hope you all like my input and please REP+ if you find this useful.
Being MAJOR Obsessive Compulsive I thought about this for literately 100+ hours of research and Google searches on chillers and ways to run sub ambient with the goal of a silent or near silent system that where reasonable from both a space reliability and cost standpoint. Heavy Duty aquarium chillers can run over $1000 and take up a lot of room (Size (mm) : 520x400x480 for example). Building a reservoir inside a freezer or fridge has the same issue of size but is prone to break as the compressors are not made for a 100% duty cycle. In both of these options you also run into the issue where the noise of the system is also louder than the fans they replace. Then there is the issue of condensation where if the cooling system is more than 13deg. below ambient condensation WILL FORM. This can short out your motherboard and other components.
The best option that I could come up with is the one I am looking to do over the next year or so depending on availability of fun money. Build a base to put under your computer (much like the new Coolermaster HAF stacker). Inside this box you can have 2x480Rad laying on there sides on each side (Total of 4x480rad., one 360rad. on top (if there is clearance between the base and the computer case), its own 550+watt power supply on the bottom back side (attached by a 24-pin splitter to motherboard for power on signal-need single 12volt rail with 42amps or greater capacity to run all 4 pumps, 19 fans and dual fan controllers), 2 to 4 D5 pumps ran in series between the radiators a single dual bay reservoir and 2x single bay Lamptron CW611 6 channel fan controllers in the front to run the pump speeds and fans and read temps coming out of pump set 1, into pump set 2 and into reservoir.
Suggest Alphacool XT45 rads based on benchmarks from MartinsLiquidLabs. You should be able to run all 19 fans about 600-800rpm on this setup (EXTREMELY QUIET - almost no sound at all) and displace an est. 850 thermal watts at that fan speed with a est. capacity of 1,260 thermal watts at 1400rpm depending on fans used. This estimate takes into account that the air going through the 360rad will be warmer than ambient from passing through the first series of rads. For reference even after taking into account pump heat gain at 800rpm fan speed that is enough to cool a 3970K and 2xGTX Titan base on maximum thermal output specs from Intel and NVidia (You will never max out your CPU and DUAL GPU at the same time in any current real world use). This should also keep flow rates over 2gal per minute (yes I know this is major overkill but as I said I am O.C.D.)
with little effort on the pumps based on restriction estimates of all of the water blocks and radiators.
You can place the two sets of pumps in series at different points in the loop as water is not compressible and it will keep the system load distributed, just make sure to use the same pumps and run at the same speed. This would also allow you to run your computer case fans at 600rpm as it only needs to cool the RAM and various other minor sources of heat in the case.
(Reservoir ----> Dual D5 w/ Bitspower Dual Mod Top----> GPU's in parallel to retain flow --Combine to single line---> CPU
> Second Set of D5 w/ Bitspower Dual Mod Top
> 4x480 rad(s)
> 1x360rad.----> Reservoir)
Have the radiators pull air through the sides into the middle (makes for easy cleaning of the Radiators and the fans will be better muffled inside of the case. Then push the air up through the top 360rad. again keeping the fans inside toward the center of the cooling case).
The entire box will be about 27" long, 14" wide and 13" tall give or take. Construction of the box using 1x1x1/4 L-angle steel and 1/2x1/2x1/8 L-Angle Steel and 16 or 18 gauge steel sheet panels will run about $150-200 and a lot of elbow grease. The rest of it is where it gets expensive.
DISCLAIMER - These numbers are based on estimates from reliable bench marks and manufactures websites. I have not yet built such box, rather this is a theoretical discussion in which I am sharing my ideas/plans. Any construction, modification, or use of this devise is done at your own risk. I assume NO RESPONSIBILITY for any damage, expense or injury this project may cause you. If you try such a system please make sure the home circuit you are plugging everything into has the capacity to run such a device with all other systems running. Also if you get it running before I do please send me pictures Edited by ChiTownButcher - 9/2/13 at 9:48pm