i agree it is a tall order but i dont beleive its impossible especially as your after microatx and not mini itx. These tend to be standard boards with 2 or 3 slots missing to meet the form factor. It will however require lots and lots of research. Best to find a supported chipset then start looking for boards that way rather than the other way round. Also dont go of what a particular distro can offer or claims to do. Go of what drivers are available wether in a distro or not.

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