Radiators in serie?

[Monge]

What would the benefit be of 2 x radiators in serie (PA120.3, BIP3)?
Better CPU/GPU temps?

[n00b 0f l337]

Yes and you could run fans quieter.

[Monge]

Thanks :)
How many degree are we talking bout?
I saw that 2 x PA160 gave better temps than 1 x Pa120.2:
http://xtremesystems.org/forums/showthread.php?t=77260

But how many degree would 2 x PA120.2 or 2 x PA120.3 give in the same setup?

[creidiki]

Depends on how much thermal load your system puts out. Thermal exchange efficiency between rad and air decreases exponentially as delta between air and water shrinks. So if your rig is very well cooled already - say with just a cpu + 1 videocard on a 120.3 - decrease could be quite small. All depends on how mch that extra 1-2c is worth to you :)

F.ex: those tests by marci are done in a system with multiple TECs - about 400W worth of TEC on top of the heat by the CPU and videocard. Any change in temps for say my rig, which dumps about 1/3-1/2 of that heat depending on what the mood takes me and how fast i run it, if i added a second rad, would likely be quite smaller. How small... cant give you a def range, i dont think anyone has done tests specifically for this kind of thing. Depend on a lot of things anyway - ambient temps, head of your pump, etc.

[SaFrOuT]

i would suggest to have one rad before the cpu and one before the gpu not the two of them after each other which i think will give better temp for both the cpu and gpu

[KaptCrunch]

yes they work good http://www.houseofhelp.com/v2/attachment.php?attachmentid=1700&d=1132886642 ambiant 20c while rads are outside in -10c