GA-890GPA-UD3H rev 2.0 compatible with Am3+?

Solution
No, it doesn't support AM3+ CPU's. The revision 3.1 motherboard supports some AM3+ CPU's but not the FX-8350. All other revisions have no AM3+ support.
I know this is old thread but I just checking out Gigabyte supported CPUs they've added few on Rev1.0 and Rev2.0
including FX-4130, FX-4350, & FX-6350 however for "Since BIOS Version" field says N/A so at least those are not supported as Gigabyte claims

I'm very interested what you decided to do with your FX-8350