hello Evan

a couple of our users are using that board so i don't see a reason why it would not work with the cpu's on it at this point knowing there is a wide range of cpu's from the ryzen to the mutiple intel setups.

if you are asking when you have a intel cpu and a ati gpu then yes this setup is possible.
when you ask us is it possible to have AMD and NVIDIA gpu's in one rig this how ever is not possible in current builds.

i hope this answers your question
if not please join our irc channel on the freenode #pimp or our discord channel https://discord.gg/mkSPD

with kind regards,

dbct,
Community/Testing/Support Manager
mail: dbct@getpimp.org
irc: dbct