With a rad bigger than the fan, it is vital to use a shroud to ensure airflow across as much of the surface of the core as possible.
If you look at the clickable thumbnail I posted you will notice the shrouds.
Nice shroud you made btw. I've seen that article before. Good work.
BlackIcePro2 + 2x Nexus 120 fans. Shockingly effective in my setup and incredubly quiet. I'm running the fans at around 750rpm.
Not bad juansolo. A 2x120 is about right for a P3.4 rig. What are your temps? I correctly assume you're not overclocking, at least with that airflow? I'm trying to have a setup that's very quiet like yours, only such that I can overclock like crazy. Hence the in-case rad.
The advantage of the BIPs is that it's only 1" thick. The disadvantage being it's 4-pass design and, to a small extent, the price.
I had a talk with bobkoure over at PC. He mentioned the Mercury Montego heatercore dosen't require a fittings mod (link
). So I'm looking at that. I may just go with larger than 5/8ID tubing in the 'external' box part though.
I'll use heatercores in the 'external' box since the setup is series to begin with. I would have four axials and two heatercores in series. I may go ahead and use a BIP or something thinner for the in-case rad though. If I do so, I'll probably make a shroud for the BIP anyway to avoid a deadspot under the motor hub.
Ed, your setup seems to be coming right along! Very nice indeed.
The Iwaki MD-20Z (or MD-30Z if on 50Hz current) has been the undisputedly best choice for very quiet extreme power. Now how it compares with the C-Systems pumps or Eheims 10xx I have never been able to find out. I doubt it is as quiet as the quietest Eheims (lets think about the power difference here, the Iwaki has up to a ~20ft head
). I'm not too worried as I know it is definitely on the quiet end of the spectrum, and I'll have plenty of room to add foam. Even if it is louder than the heatercores+fans, the character of its noise is inherently more tolerable than an axial case fan for example. Why doesn't everyone use an Iwaki MD-20Z? The price for one thing, but the real deciding factor is its size. This pump is huge! Think the extreme opposite than the c-systems size wise.