Chapter 2: Installation
2-7
Populating Memory Banks for 128-bit Operation
CPU1
DIMM1A
CPU1
DIMM1B
CPU1
DIMM2A
CPU1
DIMM2B
CPU2
DIMM1A
CPU2
DIMM1B
CPU2
DIMM2A
CPU2
DIMM2B
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Populating Memory Banks for 64-bit Operation
CPU1
DIMM1A
CPU1
DIMM1B
CPU1
DIMM2A
CPU1
DIMM2B
CPU2
DIMM1A
CPU2
DIMM1B
CPU2
DIMM2A
CPU2
DIMM2B
X
X
X
X
X
X
X
X
X
X
X
X
Notes:
X indicates a populated DIMM slot. If adding at least four DIMMs, the confi gura-
tions with DIMMs spread over both CPUs (and not like the confi guration in row 5) will
result in optimized performance. Note that the fi rst two DIMMs must be installed in the
CPU1 memory slots.
