AddA "Ultra Low Speed" Fans - 80mm 20 CFM 14 dBA

Justin_R · Post by **Justin_R** » Sun May 04, 2003 12:35 am

I was checking out the AddA fan models list (pdf) and I saw that in addition to the regular "L", "M", and "H" varieties of fans, they also have "U" and "D" varieties which are faster than "H" and slower than "L", respectively. (See here for a full explanation of their numbering scheme.) The specs on the model number AD0812DX-A70GL are 80mmx25mm 0.08A 1600 RPM 20.5 CFM 14.0 dBA. These specs seem roughly comparable to the ultra-low speed Papst (sold here for example). Not that I place much faith in the specs, but it seems worthy of note.

The interesting part is that unlike many of the fans one can find in manufacturer's data but not for purchase, it seems that mouser.com is offering this fan for sale for the reasonable price of $7.01. The catch (and you knew there was one) is that they don't keep them in stock, and you have to order a minimum of 20 (for which the price lowers to $6.48 each).

So does anyone have about a half dozen computers to build where they wouldn't mind trying out something new? Or, who's interested in trying a group purchase? Or, even better, has anyone out there tried this model of fan before?

Justin_R · Post by **Justin_R** » Sun May 04, 2003 4:06 pm

digitalix wrote:I do believe that's the exact same fans in the retail jaro components fans topic....and the silenx vs panaflo topic pg2...

Quite right. That's what I get for not keeping up with all the threads! Well, I hope folks interested in buying them do what I didn't and read this thread.

Wedge · Post by **Wedge** » Mon May 05, 2003 11:57 am

Actually, thanks to you both for bringing this to my attention.

EDIT/ btw, that enermax fan in my specs below is not what I consider quiet lol. The 92 stealth seems quieter, but its at the back outake while the enermax is front intake so maybe that's why it seems louder. Gonna use the fan isolators first to see if that helps, but most likely will be buying a different fan soon.

Vector · Post by **Vector** » Mon May 05, 2003 12:02 pm

Yeah, me too. I missed that one.

Hey I just realized we got three Delaware Valley people in the same thread. That's unique.

dan_hxff · Post by **dan_hxff** » Tue May 06, 2003 3:23 am

My friend just bought a high end Compaq that's nice and quiet. Has ADDA fans in it. Same for it's p/s. Fan RPM is controlled by motherboard he says.

Dan

Wedge · Post by **Wedge** » Tue May 06, 2003 6:37 am

dan_hxff wrote:My friend just bought a high end Compaq that's nice and quiet. Has ADDA fans in it. Same for it's p/s. Fan RPM is controlled by motherboard he says.

Dan

Sounds very similar to my dad (no pun intended). He bought a high-end compaq p4 and it was so quiet that it is responsible for my interest in silencing my pc. I can pop the hood again and see if there is any sign of ADDA.

Post by **NeilBlanchard** » Tue May 06, 2003 7:24 pm

Hello:

Verax = Citroën

xarope · Post by **xarope** » Wed May 07, 2003 1:14 am

I've ordered 8, 2 which will go on my intake, 2 on outtake, not sure if they push enough CFM to go on my CPU heatsink (xdream or volcano 11, yuk), maybe time to get an sk7 or slk800... hmm.

Wedge · Post by **Wedge** » Wed May 07, 2003 8:09 am

xarope,

Let us know what you think of the fans.

xarope · Post by **xarope** » Wed May 07, 2003 7:13 pm

will do

my intake fans are particular "noisy" (not in terms of dB level, but sort of an irritating rasping noise) as there is a filter over the intake, I'm hoping the silenx fans will allow me to keep it there, otherwise the fan blades get really dirty, which can't do the rest of the components in there any good!.

xarope · Post by **xarope** » Wed May 07, 2003 7:25 pm

Hey Radeonman,

unfortunately for me in Singapore, it's really hard to find any good silent fans, so we all end up ordering from O/S => the shipping costs kill anyway. Might as well buy the "best" in that case, rather than order something subpar, and having to fork out another $USD 50 again for more shipping!

Sigh.

SLK800's are like SGD$120 here, yet they are only USD$45! I got quoted SGD$90 for an SK7, betcha they are <USD$30.

double sigh.

xarope · Post by **xarope** » Thu May 08, 2003 12:21 am

$35 for an SLK800... I'll just go away and cry now...

Singapore's good for popular stuff, but if you are in a niche then everything's expensive and/or unavailable... grrrr

makes me want to set up my own virtual storefront, if only so I could order this stuff to play with!

AddA "Ultra Low Speed" Fans - 80mm 20 CFM 14 dBA

AddA "Ultra Low Speed" Fans - 80mm 20 CFM 14 dBA

hmmm