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 (with two CPUs
installed), the confi gurations with DIMMs spread over both CPUs (and not like the con-
fi guration in row 5) will result in optimized performance. Note that the fi rst two DIMMs
must be installed in the CPU1 memory slots.
