secret is to google msi drivers
http://www.msi.com.tw/program/suppor...t_dvr_list.php

That is a very complete list.
If you were to go to the main site, you'd just be referred to a coutnry
specific one with an incomplete list. e.g.
http://msicomputer.co.uk/products.aspx?cat_id=77 (don't go there!)

>From that msi.com.tw drivers list, you can distinguish between

865PE Neo2 and the 865PE Neo2-P they use different drivers.

Fortunately, the Neo2-P page only offers one set of Ethernet drives to
download! For other types of Neo2, it's probably better, and even
necessary, to find the specific page for it.

If I had gone to that plain Neo2 page, it doesn't even look like a
general page. It has the wrong sound driver for my Neo2-P, offers no
other one, and offers 2 ethernet drivers(one of them is correct for the
neo2-p).

The case for other specific types specific of Neo2 is probably similar,
there are specific pages for them.