8.2.1 Memory mounting rules
Installthe memory in accordance with the following rules:
■Mountmemory in units of eight modules.
■Withina unit of eight modules, all the memory modules must be of the same
capacity and rank.
■Formemory for one CPU, use only R-DIMM (Registered DIMM: 8 GB/16 GB/32
GB)or only LR-DIMM (Load Reduced DIMM: 64 GB).
■Firstmount memory group A and then mount memory group B.
Figure8-3 shows the mounting locations of all the memory modules. Each
eight-moduleunit of mounted memory is indicated by letters a to f. Table 8-1,Table
8-2 and Table8-3 list the supported memory installation configurations. The memory
mountinglocations may vary depending on the number of mounted CPU memory
units.Refer to this figure and table when you expand or reduce memory.
Asfor the mounting order of memory group B, give priority to using a uniform
memorytype of either R-DIMM or LR-DIMM for one CPU over the memory
mountingpatterns in Table 8-1,Table 8-2,andTable8-3.
FujitsuM10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ･December 2013164