Just checked on the crucial.com site and they reccomend only upto 16Gb. Price didn't seem too bad. Could be a good alternative along with PCI graphics(if possible) and a clear out of starting apps if you can't return the mobo

http://www.crucial.com/store/listparts.aspx?model=GA-A55M-DS2&Cat=RAM

Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu,  16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060