Would a Panaflo FBA12G12U1A be close to silent at 5v??

grenadier · Post by **grenadier** » Sun Jul 24, 2005 2:41 am

Just found a Panaflo 120mm FBA12G12U1A at sidewindercomputers for $12 which looks like it'd be great with the XP-120 I now have in the mail. This is a 2750 RPM, 114.7 CFM, 45.5 dBA fan. Any chance it would be even remotely close to silent at 5v?

Post by **Ralf Hutter** » Sun Jul 24, 2005 5:27 am

Absolutely no way.

Seeing as how the much quieter, low speed "L1A" version of that fan isn't silent at 5V, I just can't see how the much louder "ultra high speed" U1A version would be any better.

Panaflo model numbering scheme.

grenadier · Post by **grenadier** » Sun Jul 24, 2005 6:20 am

Seeing as the FBA12G12M1A's run at 35.5 dBA / 86.5 CFM @12v and 19.5 dBa / 36 CFM @ 5v I figured that a FBA12G12U1A rated at 45.5 dBA / 114.7 CFM @ 12v would probably run at around 48 CFM / 25 dBa @ 5v.

Don't these numbers add up to the FBA12G12U1A being a pretty quiet fan at 5v if you need the airflow??

sthayashi · Post by **sthayashi** » Sun Jul 24, 2005 11:01 am

Err... where'd you get your information on the volume of a 120mm M1A at 5v? I don't think it's right at all.

grenadier · Post by **grenadier** » Sun Jul 24, 2005 11:50 am

sthayashi wrote:Err... where'd you get your information on the volume of a 120mm M1A at 5v? I don't think it's right at all.

I was just fielding a guess and was hoping maybe someone who had a better idea or actually owned one of the fans in question would chime in with more accurate info.