I have a server that is currently running dual Opteron CPU's. It needs memory so I've been digging around for some. The thought occurred to me that I could use a different Tyan board that I have laying around that has a Intel Dual Core Desktop CPU on it. The board with Intel CPU is newer and uses unregistered non-ecc DDR2 memory instead of the other boards DDR registered ecc memory. What do you guys think? Do I get memory for the Opteron board or swap in the new board?