I have a MSI Fm2-A75MA-E35 Mobo with an ASUS 7770 2gb. I was ORIGINALLY going to swap out my A4 5300 APU due to it's poor performance, to an AMD Athlon X4 750k. Unfortunately, they do not sell this Athlon in any of my local electronic stores because it is somewhat old. I am now looking for the Athlon X4 860k but I am wondering if it is completely compatible with what I have. Also, can anyone suggest what stores will have it?