Supermicro H8DCR-3 User Manual page 27

Populating Memory Banks for 128-bit Operation
CPU1 CPU1
DIMM1A DIMM1B
X X
X X
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.
CPU1 CPU1
DIMM1A DIMM1B
X
X
X
X
CPU1 CPU1
DIMM2A DIMM2B DIMM1A
X X
X X
X X
X X
X X
X X
X X
X X
Populating Memory Banks for 64-bit Operation
CPU1 CPU1
DIMM2A DIMM2B DIMM1A
X
X
X
X
2-7
Chapter 2: Installation
CPU2 CPU2 CPU2
DIMM1B DIMM2A
X X
X X
X X
X X
X X
X X
CPU2 CPU2 CPU2
DIMM1B DIMM2A
X
X
CPU2
DIMM2B
X X
X X
X X
X X
X X
X X
CPU2
DIMM2B
X
X