i have "F1A75-M LE"-motherboard and i want to buy 8gb ram i found on discount this " PC-12800, 8 GB, G.SKILL Ripjaws X series, F3-12800CL9D-8GBXL, DDR3 1600MHz, kit 2x4GB"
According to ASUS support website that specific model is not supported as I couldnt find it on there however the 4 GB is so I would only assume that the 8 would be as well.