Hey all, I'm new to these forums and I have a question. My friend will soon be upgrading from 4gb (2x2) of memory to 8gb (2x4) I currently have 4gb (2x2) in dual channel and he is kindly offering me his old 4gb kit. What I am wondering is, will my computer support having 8gb in the form of 4x2, and how much of a performance loss would it be to having dual channel 8gb? (If any, I'm unsure exactly what dual channel really means). Thanks!