so i want to upgrade my ram and my motherboard supports 2 gb per slot and the maximum frequency is 1333 mhz i tried to go to the stores to ask for a 4 gb 1333 mhz ram and because my current one is a 2 gb 400 mhz. so i asked if they have 4 gb 1333 mhz i told them that i need a ddr3 240pin ram and they told me that my computer is too old and they only have ram for new generation computers. btw my motherboard is a foxconn 2a8c what ram can you recommend for this one? is it still possible to upgrade to 4gb 1333mhz for my desktop?