jeff79m wrote:Ok I bit the bullet and bought a 70mm to 80mm adapter along with a SilenX 80x80x25mm - 9dBA - 20CFM iXtrema Pro Fan. I used rubber fan mounts and now have the fan sticking off the back of my 209.
by jeff79m on Tue Feb 05, 2008 7:04 pm
Ok I bit the bullet and bought a 70mm to 80mm adapter along with a SilenX 80x80x25mm - 9dBA - 20CFM iXtrema Pro Fan. I used rubber fan mounts and now have the fan sticking off the back of my 209.
It is silent and I can sit in the room and read a book with hearing the fan at all. If I stand next to it I can hear a faint fan noise but only when the house is dead quiet. The old fan I could hear in my bedroom and it drove my wife nuts, which wouldn't work because I needed the device to run at night so I could remote replicate. Now I hear where the hard drives spin up and down. I am very happy with the 209 now.
by Royan on Mon Jan 28, 2008 10:36 am
good to see some posts regarding this problem. I just replaced the bisonic fan by a PAPST 712L Fan.
No improvements were made. So I am still searching for a solution to calm down the box.
Just a quick question about the Papst fan you mentioned.
Did you mean 712 F/2L?
I can only find the 712 F (38 dBA), 712 F/2L (25 dBA) and 712 F/2M (32 dBA) fans on Papst's site...
If you ment the 712 F/2L, then I won't bother trying it, but if it is one of the other fans it might be worh a shot...
badrparker wrote:I just got my 209 and I have to say I’m really disappointed by the amount of noise it makes too. :
badrparker wrote: So now I either send it back, do the 80mm fan mod which looks bl**dy awful (no offence bernd, you did what you could with what you had to work with), or run some cat5 and get it into the spare room. A shame.
minor wrote:Furthermore i think, that the 209-series is build much better than the 109-series regarding the thermal aspects: There is much more space inside the housing and there are bigger ventilation holes in the much bigger surface. I think, if you place it right (in cool room), it can cool itself without any fan.
qman-ger wrote:It is a real shame that no one of QNAP comments this failure in the design of 209-pro. Placed on the market as a storage solution for demanding personal use, the noise which comes along with this in other repects very good product is simply not acceptable.
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