Sun Microsystems 6.0005E+11 manual CPU/Memory Boards

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.

CPU/Memory Boards and Components 3-5