Fujitsu SPARC M10-4 Service Manual page 200

When only the CPU memory unit lower is mounted
Table 8-1
Number of memory
modules
When both the CPU memory unit lower and the CPU memory unit upper
are mounted
Table 8-2
Number of Mounted memory
memory
modules
When expanding a CPU memory unit upper to a chassis in which only a
CPU memory unit lower is mounted
Fujitsu M10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ･ February 2014
176
Mounted memory