Question : Problem: asus A8N-SLI 939 and RAM Configuration/Installation<wbr />

I have an asus A8N-SLI 939  motherboard.  I had 2 1GB sticks of Corsair XMS PC3200 Ram installed.  I recently purchased another stick of the same RAM.  when i put it in,making 3 sticks total, my computer doesn't recognize it at all.

Is this a dual channel issue?  Do i need to reset my BIOS settings?  What am i doing wrong?

Answer : Problem: asus A8N-SLI 939 and RAM Configuration/Installation<wbr />

Your system requires that you install memory in pairs.