I'm thinking about grabbing some 4GB modules for my Early 08 Mac Pro. Is this the config I should set them up in? (and yes, I've looked at the RAM config guide everyone knows about, but it doesn't include 4GB modules) Riser A (top) 4GB 4GB 2GB 2GB Riser B (bottom) 2GB 2GB 1GB 1GB The only reason I ask is that I didn't know if it was better to have the 2GB pairs matches against each other in the riser slots (across cards) to get full interleaving. So another config would be: Riser A (top) 2GB 2GB 4GB 4GB Riser B (bottom) 2GB 2GB 1GB 1GB or Riser A (top) 4GB 4GB 2GB 2GB Riser B (bottom) 1GB 1GB 2GB 2GB Thanks!!