Questions about Liquid Cooling

iamlegend999

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Oct 28, 2012
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Alright guys, I have almost bought all the parts to set up my new (and first) liquid cooling system. I have a couple of questions I want answered.
First, in my loop there is silver, copper, nickel, brass, and chrome (actually chrome finish). According to the chart and info here (http://www.engineersedge.com/galvanic_capatability.htm), chrome could become a problem compared to the rest of the metals. I plan on running distilled, biocide, and kill coil, so is chrome an issue with corrosion or am I worrying too much?
Second: How should I set up my loops, single or dual? I plan on cooling a cpu (possibly the bridges on a mobo) and 2 gpus. Should there be two seperate loops for the cpu and mobo (1 loop, cpu first, then mobo if I decide to cool it) and gpus (another loop, gpus in series) or should I use 1 loop with everything, and if so, in what order should I put the parts?
Basically, I'm asking: to cool a CPU and 2 GPUs (possibly a little mobo cooling as well), what setup gives the best performance?
 
Solution
Id do two separate loops .... using Asus Rampage VI Formula and two Asus Posiedon GTX 700 GPUs (hoping for September release)

Here's a interior reservoir build.....

http://rog.asus.com/forum/showthread.php?33364-Maximus-VI-Formula-Show-Casemod-MbK

This is a bay reservoir s build

Here's one I posted earlier:

I'm by no means an expert ..... but this is stuff ya might consider for full WC

GPU Loop

Crystal Link Tube Set .... This is 4 slot, 2 - 5 slot options available
http://www.frozencpu.com/products/10746/ex-tub-671/Bitspower_SLI_Crossfire_Crystal_Link_Tube_Set_-_4_Slot_Spacing_BP-CLTAC-S4.html

Tubing Adapter .... Bitspower SLI / Crossfire Multi-Link Adapter Pair - Matte Black (BP-MBWP-C47) 2 for...
Id do two separate loops .... using Asus Rampage VI Formula and two Asus Posiedon GTX 700 GPUs (hoping for September release)

Here's a interior reservoir build.....

http://rog.asus.com/forum/showthread.php?33364-Maximus-VI-Formula-Show-Casemod-MbK

This is a bay reservoir s build

Here's one I posted earlier:

I'm by no means an expert ..... but this is stuff ya might consider for full WC

GPU Loop

Crystal Link Tube Set .... This is 4 slot, 2 - 5 slot options available
http://www.frozencpu.com/products/10746/ex-tub-671/Bitspower_SLI_Crossfire_Crystal_Link_Tube_Set_-_4_Slot_Spacing_BP-CLTAC-S4.html

Tubing Adapter .... Bitspower SLI / Crossfire Multi-Link Adapter Pair - Matte Black (BP-MBWP-C47) 2 for Crystal Link,
http://www.frozencpu.com/products/10743/ex-tub-668/Bitspower_SLI_Crossfire_Multi-Link_Adapter_Pair_-_Matte_Black_BP-MBWP-C47.html

Tubing Adapter .... Bitspower Matte Black Ultimate G 1/4 Thread 3/8" ID x 1/2" OD Rotary Compression Fitting (BP-MBRCPF-CC2) 2 for GPU connections, 2 for Pump, 2 for Rad, 2 for reservoir so 8
http://www.frozencpu.com/products/11107/ex-tub-700/Bitspower_Matte_Black_Ultimate_G_14_Thread_38_ID_x_12_OD_Rotary_Compression_Fitting_BP-MBRCPF-CC2.html?tl=g30c409s1032

Radiator - Alphacool NexXxoS UT60 Full Copper Triple 140mm Radiator 468 x144 x 60mm
http://www.frozencpu.com/products/16826/ex-rad-427/Alphacool_NexXxoS_UT60_Full_Copper_Triple_140mm_Radiator.html

Radiator Gasket - XSPC 3 x 140mm Radiator Gasket - 3mm (2 for pull / 3 for push pull)
http://www.frozencpu.com/products/16826/ex-rad-427/Alphacool_NexXxoS_UT60_Full_Copper_Triple_140mm_Radiator.html

Reservoir Pump - Alphacool Repack Dual 5.25" Acrylic Reservoir - Clear - w/ D5 Variant Pump Installed (15171) and Swiftech MCP655™ 12v Water Pump w/ Speed Control Option (+$15)
http://www.frozencpu.com/products/20791/ex-res-616/Alphacool_Repack_Dual_525_Acrylic_Reservoir_-_Clear_-_w_D5_Variant_Pump_Installed_15171.html?tl=g30c97s152



CPU Loop

Radiator - Alphacool NexXxoS UT60 Full Copper Dual 140mm Radiator 324 x 144 x 60mm
http://www.frozencpu.com/products/16825/ex-rad-426/Alphacool_NexXxoS_UT60_Full_Copper_Dual_140mm_Radiator.html

Radiator Gasket - XSPC 2 x 140mm Radiator Gasket - 3mm (2 for pull / 3 for push pull)
http://www.frozencpu.com/products/20857/ex-rad-629/XSPC_2_x_140mm_Radiator_Gasket_-_3mm.html

Reservoir Pump - Alphacool Repack Dual 5.25" Acrylic Reservoir - Clear - w/ D5 Variant Pump Installed (15171) and Swiftech MCP655™ 12v Water Pump w/ Speed Control Option (+$15)
http://www.frozencpu.com/products/20791/ex-res-616/Alphacool_Repack_Dual_525_Acrylic_Reservoir_-_Clear_-_w_D5_Variant_Pump_Installed_15171.html?tl=g30c97s152

Water Block - XSPC RayStorm High Performance Acetal CPU Liquid Cooling Block - Black Edition (Intel) (Sockets LGA 115x / 1366 / 2011)
http://www.frozencpu.com/products/16546/ex-blc-1168/XSPC_RayStorm_High_Performance_Acetal_CPU_Liquid_Cooling_Block_-_Black_Edition_Intel_Sockets_LGA_115x_1366_2011.html

WB Cover Plate - XSPC Aluminum Red Edition Mounting Face Plate - Intel Raystorm CPU Block
http://www.frozencpu.com/products/20746/ex-blc-1485/XSPC_Aluminum_Red_Edition_Mounting_Face_Plate_-_Intel_Raystorm_CPU_Block.html

Tubing Adapter .... Bitspower Matte Black Ultimate G 1/4 Thread 3/8" ID x 1/2" OD Rotary Compression Fitting (BP-MBRCPF-CC2) 2 for Water Block, 2 for Pump, 2 for Rad, 2 for reservoir so 8
http://www.frozencpu.com/products/11107/ex-tub-700/Bitspower_Matte_Black_Ultimate_G_14_Thread_38_ID_x_12_OD_Rotary_Compression_Fitting_BP-MBRCPF-CC2.html?tl=g30c409s1032

Tubing - Tygon 2475 Ultra Chemical Resistant Plasticizer Free Tubing - 3/8" ID (1/2" OD) - Clear (ACG00027) .... Figure 10 feet
http://www.frozencpu.com/products/10691/ex-tub-663/Tygon_2475_Ultra_Chemical_Resistant_Plasticizer_Free_Tubing_-_38_ID_12_OD_-_Clear_ACG00027.html


You will need (3) 140mm fans for the GPU loop and (2) for the CPU loop....consider later if ya want push-pull.

If ya case cant mount 140's .... then change to 360 and 240 rads

Accessories..... fluid ....distilled water recommended .... if ya must have color look at the Mayhem pastel stuff....think about biocides and corrosion inhibiter additives.

Funnel ?
http://www.frozencpu.com/products/10772/ex-res-193/PrimoChill_-_Threaded_G_14_Funnel_-_Black_PC-GF-BK.html?tl=g30c101s1206

Some 45 and 90 bends might come in handy.
http://www.frozencpu.com/products/11887/ex-tub-737/Bitspower_G14_Matte_Black_Dual_Rotary_45-Degree_Compression_Fitting_CC2_For_ID_38_OD_12_Tube_BP-MB45R2CPF-CC2.html?tl=g30c409s1321
http://www.frozencpu.com/products/10751/ex-tub-675/Bitspower_G14_Thread_90-Degree_Rotary_38_ID_x_12_OD_Compression_Fitting_-_Matte_Black_BP-MB90R2LCPF-CC2.html?tl=g30c409s1302

As to the metals issue..... best advice is minimize dissimilar metals. Many have expressed concern about the aluminum HS's in the Formula MoBo....Asus responds that it is both anodized and coated. Id avoid the chrome and use the Bitspower fitting above.

Switch to cylinder reservoir if ya case don't have the bays available.

AquaComputer Pump Adapter w/ Aqualis Reservoir and Pump Installed + $15 variable speed pump option
http://www.frozencpu.com/products/16994/ex-res-422/AquaComputer_Pump_Adapter_w_Aqualis_Reservoir_and_Pump_Installed.html?tl=g30c97s152

 
Solution

toolmaker_03

Honorable
Mar 26, 2012
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I use antifreeze, because i would have corrosion issue that would occure in my system if i did not.

if i where to set up a system for distilled water, i would buy only copper fittings for that setup.

one loop for the GPU's, and another loop for the CPU & MOBO but that is how i would do it.

 

iamlegend999

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Oct 28, 2012
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Code:


Ok I got rid of the chrome fittings for the bitspower, so no issue there. Now I just have to figure out whether single or dual loop gives me the best performance... Hmm...
 

MagR

Distinguished
Aug 31, 2009
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18,640
Hi

As far as I know the metal to avoid is aluminium - this leads to galvanic corrosion. Glycol can be used to prevent this as someone mentioned (antifreeze). A bit of chrome plating is probably safe.

As regards loops I would use a single loop. I've seen some testing which showed using separate loops with different pumps, radiators and reservoirs didn't achieve much. This assumes your single pump can give sufficient flow to ovecome all the restrictions of your blocks and your radiator is large enough. I've used a Laing D5 with two gpu full cover blocks and a cpu block and that was fine set to a speed of 3.5/5 with a large 4x140 radiator. A D5 or 18w DDC should cope with most loops..

As regards loop order place your pump straight after your reservoir. The order of the rest doesn't matter much as the water ends up pretty much the same temperature all over. Put them in the order which is easiest to tube up.

Hope this helps

Mag
 


I would figure 2 fans worth of Rad cooling for MoBo and CPU..... and 1 to 2 fans worth or Rad cooling per GPU.

4 x 140mm if doing a single loop .... would use double pump system tho (Reservoir w/ dual pump mount)

2 x 140mm for CPU + MoBo
3 x 140mm or 4 x 140mm for GPUS

 

iamlegend999

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Oct 28, 2012
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Well I could also set up a single loop in which the route is something like res to pump to rad 280mm to CPU to mobo to 480mm rad to gpu 1 to gpu 2 back to res. also, I could change the 480mm rad into a 280 for the 1st gpu and then add another 280mm rad between the GPUs for the 2nd gpu.
 

iamlegend999

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Oct 28, 2012
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Ok thanks for the info! I am starting to lean toward single loop...