B.2 cpu module, Cpu module – FUJITSU SPARC ENTERPRISE M8000 User Manual

Page 451

Appendix B

Components

B-5

■

For the bus connecting SC and SC as well as SC and crossbar unit, a high-speed
link is used.

■

For the bus connecting SC and MAC as well as SC and CPU, a high-speed link is
used.

■

For the memory, DIMM is used.

■

The CMU has a label bearing the printed component number and manufacture's
serial number.

B.2

CPU Module

CPU module consists of CPU and DDC. Up to four CPU modules can be mounted
on a CMU. There are four types of CPU modules.

shows the CPU module.

FIGURE B-2

CPU Module

The CPU module has the following characteristics.

■

Active maintenance of CPU modules is possible using the DR function.

■

To perform active maintenance, you need to pull out the CMU from the system
before replacing the target CPU module.