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Single 120mm rad vs double 120mm

post #1 of 5
Thread Starter 
How big of a difference does a double 120mm radiator make? I'm trying to decide if it is worth the work to start sawing into my case biggrin.gif. I'm only planning on cooling CPU.

The price difference is minimal, just going to be a hassle to fit a double in my small case. I could easily do 2x single 120mm but the price doesn't seem worth it.
post #2 of 5
Radiators dissipate a certain amount of heat depending on airflow and waterflow rate.

If a single radiator is adequate enough to coupe with your particular heatload at a given air and water flow rate....a double rad will provide minimal benefit.

Martin tends to have give data: www.martinsliquidlab.org
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post #3 of 5
For a CPU only loop I would normally suggest you run 240mm of rad space.

120mm will work but the temps might not be all that great.

2 x 120mm rads ≈ 1 x 240mm rad in terms of cooling performance

What CPU are you cooling and in what case? Fill in your sig rig and we can get a better idea of how to help you.
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post #4 of 5
Thread Starter 
My case is this one: http://www.lian-li.com/v2/en/product/product06.php?pr_index=154&cl_index=1&sc_index=25&ss_index=62&g=d

I can't justify buying a new case along with all this new water cooling gear, which is expensive enough as it is biggrin.gif

I was thinking about cutting some metal out the top for the 2x radiator. I'd keep the fans outside (I think) and the radiator inside. That is about the only way I can see fitting the 2x 120mm in this case, or I move the radiator outside, which I'd rather not do.
post #5 of 5
If cost is your concern, you can get one of those closed loop systems like the Corsair H series or Antec Kuhler and just ghetto mount it with the radiator hanging out to the side with the side panel of your case off.
    
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