I know RAM is everyone's favorite topic around here, so here's another RAM thread!!! Seriously though, and I apologize if this is a stupid question... My iMac has yet to arrive. Does it make any difference if I go through the initial boot-up before or after adding an additional 8GB of aftermarket RAM to my iMac? Do I need to hold down any special keys during boot to make it scan for new hardware or anything like that? Please excuse my ignorance... Never upgraded RAM on a Mac before.