I have the 9NDA3i and am trying to add more than 1 stick of 1Gb DDR 400 to it.  If I have more than 1 in (same manufacturer) the Board beeps at startup and cycles through the power up until I turn it off.  Where in the BIOS can I make it take more?  I want to use Vista when it comes out and my online games are RAM hogs.  Any advice would be helpful.