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CPU/Memory Boards and Components 3-5
3
The hot-plug feature enables you to insert a new board into a powered on
system, despite the system being “live,” or being supplied with electrical
power. When the hot-plug feature is used to add a board to a powered on
system, the system will not use the new board until the system is rebooted.
3.4 CPU/Memory Boards
Each CPU/Memory board supports up to two UltraSPARC modules and 16
SIMM slots for memory.
Figure 3-3 is a simplified block diagram of the CPU/Memory board. It includes
an Address Controller, 8 bit-sliced Data Controllers, a Bootbus Controller, on-
board devices (including a Flash PROM, and SRAM), two CPU processor slots,
and slots for two memory banks of 8 SIMMs each.