Officially no intel desktop boards supports any of the win servers: http://www.intel.com/support/motherboards/desktop/sb/CS-008326.htm
I am sure though there are ways to make it work. on them. Maybe someone around here has done and cant point you in teh right direction.
First of all, FYI this community is solely dedicated to Intel vPro technology and it's related issues. Your query is typically intended for our Motherboard community and I would encourage you to post your queries regarding Motherboard next time there to receive a prompt response.
Now, reverting to your question, firstly here is a complete list of http://www.intel.com/support/motherboards/desktop/sb/CS-008326.htm INTEL DESKTOP MOTHERBOARDS and their SUPPORTED OPERATING SYSTEMS
As for your motherboard i.e. DG43NB, it supports the following OS:
Windows 7* (32-bit & 64-bit)Microsoft Windows Vista* (32-bit & 64-bit)Microsoft Windows XP* & XP Media Center Edition*Microsoft Windows XP 64-Bit Edition*Linux (Limited Distributions)
As for Windows Server 2003 and Windows Server 2008, I must bring this into your notice that since these are Server based OS, they are designed to work with Server CPUs and Motherboards typically unless and otherwise stated. As the above mentioned URL states "Intel® Desktop Boards do not currently support Microsoft Windows Server 2003 or 2008*. There are no plans for making drivers available for this operating system."
However for the Server Motherboards, I can give you recommendations provided your budget and limitations along with your intended usage environment. We always advise our users to refer to THOL (Tested Hardware and OS List) before purchase of any Motherboard, CPU or any other hardware component, in the THOL you will find a complete list of Tested and Verified OS that Intel advises and guarantees full support on. For instance, in case of one of the Server Motherboards like S5500WB, here is a list of OS that are compatible which includes Windows Server 2008 and 2003-R2 (32/64Bit): http://www.intel.com/support/motherboards/server/s5500wb/sb/CS-030382.htm http://www.intel.com/support/motherboards/server/s5500wb/sb/CS-030382.htm
I hope you get my point and we certainly hope it helps you answer your query. For any further assistance, please feel free to consult us and we'll be glad to help.
Thank you for supporting Intel, have a great day!
Intel Go Green, Save The Environment!