Just need confirmation of this: I have 6Gb of Apple supplied memory that was in my Mac Pro. I'm planning on making an Un-Raid server with AMD Athlon chips. For ECC to be enabled the DIMMs have to be un-registered and un-buffered. I know they are un-buffered, but if they are un-registered is the issue. I gather sub 8Gb sticks are un-registered, but 8Gb+ are? Given that these are 2Gb sticks (3x2Gb) are they registered or not!? Cheers!