2 radiators better than1?
 

I have space for 2 of the black ice dual 120 mm fan radiators in may case. If cool air from outside the case is circulated over them, will I see much of a difference in temps? or will this just take up space?

Thanks

Need more info on your system, pump, block(s), fans, ect... it's not a simple straightforward thing. Another rad might help. generaly the more cooling area of a rad the better. can your pump handle the extra flow/work required though?...

Is the rad the bottleneck in your system?. what CPU at what MHZ & Voltage are you running?. what CPU temps and ambiant (not system/mobo!!) temp is your room at?...

A 2nd rad will always bring better cooling perf. If your pump is already at its limits, you can mount em in parallel to get less resistance.