i have my old PC with specs:
AMD Phenom II X4 965 Black Edition
and Main board with Gigabyte M52LT-D3
i'm wondering to upgrade my main board with Gigabyte GA-990FXA-UD3 R5
is this main board support to my CPU?
Yes it will, however I would highly suggest you wait another month or so for Ryzen to release and do a complete system update, as the new board is not going to give you any real benefit over your existing one.