Their part numbering scheme is shown in the GIF below:
http://www.adda.com.tw/products/index.htm
http://www.adda.com.tw/products/Fan numbering.gif
The options table is expanded with more detail here:
http://www.addausa.com/options/options-index.html
PDFs with model numbers are here:
http://www.addausa.com/specification_index.html
What you need now, is a closeup photo of the fans, so you can
get a part number off the fans, and compare to the PDF
part list.
Paul
This article has pictures:
http://www.xtrememods.com/reviews.php?id=2&page=3
The front fan assembly looks similar to a posting made
here not too long ago. The OP in that thread, said those
fans are AD0812MS-A76GL, and they have a tachometer signal.
The ADDA site lists them as option 6, which is really a
tacho signal.
http://groups.google.ca/[email protected]
The rear fan looks to have three wires, but it is hard to
tell if the wires are the same color as the front fans.
And I still don't have a picture of the blowhole fan.
But, the thing is, there aren't going to be enough fan headers
on your motherboard, to monitor all four fans. Even if all
the fans have tacho, you are going to have to choose which
ones are monitored.
If all the fans have tacho, you might consider a Digidoc5.
I don't know if these are still made or not.
http://www.envynews.com/index.php?ID=257&page=
http://mikhailtech.com/articles/other/digidoc5/DigiDoc 5 Review.htm
"The Ddoc reads the rpm of the 3-wires fans, and emits an
acoustic and visual alarm when the rpm drops below 500, but
you can disable this function for 2-wires fans, like the
panflos that many have, use and love."
HTH,
Paul