On May 29, 2006, at 4:57 PM, SLarsonIH at aol.com wrote: > Does anyone know why a MDD dual 1.25GHz card wouldn't work in a MDD > dual 867 > model? Has anyone seen it done? The last question just made me think. > > STeve I think the bus speed is different on the two, so you would need to replace the entire motherboard to reap the total speed boost. Just a message from Doug...