Fujitsu M10-4 - Memory Configuration

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Figure 9-2
Type of CPU memory unit
9.1.2 Memory configuration
A maximum of 32 memory modules can be implemented in one CPU memory unit.
One chassis can contain two CPU memory units; the CPU memory unit upper and
lower. Therefore, the maximum number of memory modules that can be implemented
in one chassis is 64.
For the memory installation rules and the method for checking memory information,
see "2.2 Checking the Memory Configuration Rules."
Chapter 9 Maintaining the CPU Memory Unit/Memory 185