Originally Posted by Pings
Again I don't think you understand a shroud. The longer the shroud the harder it becomes for the fan to push or pull air. I do HVAC for a living and I've seen huge and small systems that have 1/2" - 1 1/2" shrouds. Fans that are way bigger than these 120mm fans. If you want to do dual shrouds do it like this (Shroud⇉Push⇉H50⇉Shroud⇉Pull) other wise you are just putting a greater load on the fan. Even then I doubt the double shroud idea will work, or get me a better idle temp of 19Â°C. Also with your current setup it's wrong, it should be (Shroud⇉Push⇉Rad⇉Pull). The way you did it (Push⇉Rad⇉Shroud⇉Pull) basically you just made a duct. There is no shroud or elimination of dead air with the way you set it up.
I tried both ways. The reason my intake works better than the push setup, is because I'm not recirculating hot/warm air. <-- Cooler/Fresher air being pulled into the case, thru the radiator, is much much much better than the warmer air (from Gfx and PSU) being pushed out of the case.
Again, I'm just doing this because I'm bored, and I really want to see what the real world effects are... AND hopefully it will quiet it down just a bit more.
I think only high end WC'ing or LN2 would get you better idle temps lol.
To explain my logic regarding sound: I don't care as long as my temps are below 60c at Full Load (Linpack Test), because I do a TON of video encoding, and I leave my machine in all night. I will glady sacrifice some lower temps for an even quieter system.Edited by arbalest - 1/10/10 at 11:18pm