Pressure and FPI

[ATMINSIDE]

So, I know there's a tradeoff of pressure/performance/silence, but if you have a ~30fpi radiator and a fan around 11mmH2O, will it still be pretty quiet at lower RPMs with good performance?

 

[lkrose78]

That's an impressive fan if those specs are correct. Most low-speed fans that are quiet only produce around 1mm H20, give or take 1mm.

A 30fpi rad is not going to like a low-speed fan, regardless of the static pressure. It will work, and you may be able to cool your gear, but the performance is going to take a serious hit, IMHO.

I can't speak for the fan unless you can tell us what type it is, size, rpm.

 

[ATMINSIDE]

That's an impressive fan if those specs are correct. Most low-speed fans that are quiet only produce around 1mm H20, give or take 1mm.

A 30fpi rad is not going to like a low-speed fan, regardless of the static pressure. It will work, and you may be able to cool your gear, but the performance is going to take a serious hit, IMHO.

I can't speak for the fan unless you can tell us what type it is, size, rpm.

The fan in question is a Delta AFC1212D-PWM.

Of course, with it being PWM, the system could control the speeds. It varies from 25% signal at 1720RPM, 50% signal at 2420RPM, 75% signal at 3150RPM, and tops at 3400RPM.
Even in the 25-50% range you should get pretty high pressure, and still decently low noise, unless I'm just off-the-wall with my assumptions (which has happened)

 

[lkrose78]

The fan in question is a Delta AFC1212D-PWM.

Of course, with it being PWM, the system could control the speeds. It varies from 25% signal at 1720RPM, 50% signal at 2420RPM, 75% signal at 3150RPM, and tops at 3400RPM.
Even in the 25-50% range you should get pretty high pressure, and still decently low noise, unless I'm just off-the-wall with my assumptions (which has happened)

Haven't used that fan...the specs almost seem too good...at $18 I think it's worth a try.

 

[ATMINSIDE]

Haven't used that fan...the specs almost seem too good...at $18 I think it's worth a try.

I mean, it is Delta. They give you this spec sheet about its numbers and how they were obtained.
Not saying that makes it true, but its a huge step over most all other fans.

I'm almost set on them, especially for the price, just wondering if anyone has experience with them on 20+ or even 30+ fpi setups.

 

[MongGrel]

Yeah, I about like anything Delta makes myself, like the CP-850, had never tired any PWM's they made looks nice to me.

Look like great fans to me.

Maybe a bit loud side for my taste, but they are PWM I guess.

 

[GTXJackBauer]

If noise ain't a problem which won't be with the selection of the rad, it should be perfect for it. I know on a 20 FPI rad (BI GTX 360) sweet spot is 2200 RPM (300w) in benchmarks. Anything less and you're losing performance. So I can imagine you'll need more than 2200 RPM on that rad.

 

[ATMINSIDE]

If noise ain't a problem which won't be with the selection of the rad, it should be perfect for it. I know on a 20 FPI rad (BI GTX 360) sweet spot is 2200 RPM (300w) in benchmarks. Anything less and you're losing performance. So I can imagine you'll need more than 2200 RPM on that rad.

Well, I've got some plans in the works, so I'll report back when I know

 

[RnRollie]

if it ain't enough, just go push/pull at 50% to overcome the 30fpi with less noise as one Delta at full speed

 

[ATMINSIDE]

if it ain't enough, just go push/pull at 50% to overcome the 30fpi with less noise as one Delta at full speed

P-P is always a good option. I should have room to do that just fine.