Yes, the b95 should work with the AM3+ motherboard. But because the phenom ii x4 b95 is the OEM cpu, which was made for the brand company like dell, HP, etc. The retail brand MB will not include it in the cpu support list. So the MB may or may not recognize it as the phenom ii x4 b95. Even the MB does not recognize it as phenom ii x4 b95, but will recognize it as quad CPU at least.