Apple Xserve G5 - Manual (Page 77)

Chapter 6 Installing or Replacing Server Components 77
Important: Memory DIMMs must be installed in pairs. You place one DIMM in each
bank of slots, in a corresponding position (for example, in the empty slot closest to the
center of the server in each bank for the first pair, in the slot next closest to the center
for the second pair, and so on). Always start with the open slot closest to the center of
the server in both banks.
5 Open the ejectors on the DIMM slot you want to use by pushing down on them.
DIMMs are already installed in these two slots.
If slots are available, and you
want to install more memory,
install additional DIMMs in
this fashion: In pairs, one per
bank, from the center outward.
Bank 1 Bank 2