How much dBA and CFM should a 5 volt 92mm panaflo make?

Shining Arcanine · Post by **Shining Arcanine** » Mon Dec 27, 2004 8:08 pm

If I have done the correct math it should make 17.7916... CFM and 11.25 dBA assuming that it is an ultra quiet model but I'd like someone else to confirm this before I make any expenditures of capital (I have a pile of fans lying around).

Post by **Rusty075** » Mon Dec 27, 2004 9:51 pm

Pretty close, but remember that dBa is logarithmic, not linear, so you can't just multiply its value by 5/12th.

At 5v it computes out to about 8 dBa for that fan. (if I did my math right

)

Shining Arcanine · Post by **Shining Arcanine** » Tue Dec 28, 2004 5:40 am

Rusty075 wrote:Pretty close, but remember that dBa is logarithmic, not linear, so you can't just multiply its value by 5/12th.

At 5v it computes out to about 8 dBa for that fan. (if I did my math right )

That is even better.

Would you mind sharing that formula?

OVI · Post by **OVI** » Wed Dec 29, 2004 10:31 am

I've found this to be quite helpful when choosing fans and voltages:
http://www.silentpcreview.com/files/fan ... nspecs.pdf

Shining Arcanine · Post by **Shining Arcanine** » Mon Jan 03, 2005 4:06 pm

OVI wrote:I've found this to be quite helpful when choosing fans and voltages:
http://www.silentpcreview.com/files/fan ... nspecs.pdf

Unfortunately, that url doesn't work for me.

Post by **Rusty075** » Mon Jan 03, 2005 4:22 pm

Right-click and Save As will get it for you.

Chang · Post by **Chang** » Tue Jan 04, 2005 2:16 pm

Or you should be able to go through the link on the article page and grab the file from there. And you might as well read through the article for links to formulas while you're there.