Should 2 120mm radiators be inline, or seperate?

ReinhardHeydrich

Junior Member
May 14, 2002
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I have a side intake 120mm fan with radiator, and a rear intake 120mm fan with radiator. Should I connect these inline so they will cool the fluid more, or have one before the CPU, and one before the video cards? Here's my setup...

2 Black Ice Pro 120s
Aquastream pump, 6mm ID tubing
Aqua Computer Cuplex XT CPU Block on a QX6850
Aqua Computer AquagraFX card waterblocks on SLI 8800 GTX OC2s
Aqua Computer Aquabox 3.5" res
FluidXP+ Extreme
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
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Originally posted by: ReinhardHeydrich
I have a side intake 120mm fan with radiator, and a rear intake 120mm fan with radiator. Should I connect these inline so they will cool the fluid more, or have one before the CPU, and one before the video cards? Here's my setup...

2 Black Ice Pro 120s
Aquastream pump, 6mm ID tubing
Aqua Computer Cuplex XT CPU Block on a QX6850
Aqua Computer AquagraFX card waterblocks on SLI 8800 GTX OC2s
Aqua Computer Aquabox 3.5" res
FluidXP+ Extreme

you a hardcore gamer?

And yikes your on 6mm which translates to 1/4ID diameter. Thats very restrictive expecially with your Cuplex XT. That isnt the double impact one is it?
 

ChefJoe

Platinum Member
Jan 5, 2002
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In all honesty, it probably doesn't matter that much and you should do what'll make the connections shorter and more streamlined.

Water pumps around fast enough and has a high enough heat capacity that radiators don't provide all the cooling possible in one pass (it doesn't just enter hot and leave at ambient temperature).


The counterarguement you'll hear is that the 8800's run hot and a QX6850 run hot and hot water going into either of those is going to be poor for cooling but that's not taking into account that watercooling functions as a closed system with circulative cooling. You may keep the water going into the video cards a degree or two cooler but that probably won't change your overclock much if at all.

The "proof" would be to get two buckets and run room temperature water from a bucket through the system and then out into the empty bucket. You'd find that the temp of the water exiting will be maybe a degree above what went in vs a closed loop would stabilize several degrees above ambient.
 

ChefJoe

Platinum Member
Jan 5, 2002
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Originally posted by: aigomorla
Originally posted by: ReinhardHeydrich
I have a side intake 120mm fan with radiator, and a rear intake 120mm fan with radiator. Should I connect these inline so they will cool the fluid more, or have one before the CPU, and one before the video cards? Here's my setup...

2 Black Ice Pro 120s
Aquastream pump, 6mm ID tubing
Aqua Computer Cuplex XT CPU Block on a QX6850
Aqua Computer AquagraFX card waterblocks on SLI 8800 GTX OC2s
Aqua Computer Aquabox 3.5" res
FluidXP+ Extreme

you a hardcore gamer?

And yikes your on 6mm which translates to 1/4ID diameter. Thats very restrictive expecially with your Cuplex XT. That isnt the double impact one is it?

Is that the typical ID for a 1/2" OD tube?
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
20,894
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Originally posted by: ChefJoe
Originally posted by: aigomorla
Originally posted by: ReinhardHeydrich
I have a side intake 120mm fan with radiator, and a rear intake 120mm fan with radiator. Should I connect these inline so they will cool the fluid more, or have one before the CPU, and one before the video cards? Here's my setup...

2 Black Ice Pro 120s
Aquastream pump, 6mm ID tubing
Aqua Computer Cuplex XT CPU Block on a QX6850
Aqua Computer AquagraFX card waterblocks on SLI 8800 GTX OC2s
Aqua Computer Aquabox 3.5" res
FluidXP+ Extreme

you a hardcore gamer?

And yikes your on 6mm which translates to 1/4ID diameter. Thats very restrictive expecially with your Cuplex XT. That isnt the double impact one is it?

Is that the typical ID for a 1/2" OD tube?

no... a 1/2OD tube would be a 3/8 or a 8mm hes running a 6mm which is a 1/4ID 3/8OD tubing. LOL....

Something like this:
http://www.sidewindercomputers.com/ty201id3odul.html

 

PCTC2

Diamond Member
Feb 18, 2007
3,892
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Would it really cool them? 2x 8800GTX's and a QX6850 put out a total of 400-500W.... would 2x 120.1 radiators with 1/4" ID tubing really be more effective than air? I think air would really be better until you could get better watercooling parts.
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
20,894
3,247
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Originally posted by: PCTC2
Would it really cool them? 2x 8800GTX's and a QX6850 put out a total of 400-500W.... would 2x 120.1 radiators with 1/4" ID tubing really be more effective than air? I think air would really be better until you could get better watercooling parts.

air would actually give him better temps thanks to the 8800GTX n sli.