The APU I bought isn't listed in on the support page... http://www.msi.com/product/mb/A55M-P33.html#/?div=CPUSupport ...the APU I ordered was... AMD A4-Series AD3400OJHXBOX A4-3400 APU - Socket FM1, Radeon HD 6410D, 65W, 2700, 32nm SOI, D2/D3 FCH, 1024 L2 Cache, DirectX 11....should I return it or install it when it arrives. Thanks to all that help us unknowing novices.