Sun Microsystems Fire 880, Руководство пользователя

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62 Sun Fire 880 Server Owner’s Guide • August 2001
About CPU/Memory Boards
The system motherboard provides slots for up to four CPU/Memory boards. Each
CPU/Memory board incorporates two UltraSPARC III microprocessors, with
8 Mbytes of static random access memory (SRAM) external cache memory per
processor, and slots for up to 16 memory modules. The external cache memory
cannot be upgraded; it is fixed at 8 Mbytes, which is the maximum amount that the
UltraSPARC III architecture supports.
The following illustration shows the four CPU/Memory board slots on the system
motherboard. The slots are labeled A through D from bottom to top. The CPUs in the
system are numbered from 0 to 7, depending on the slot where each CPU resides.
For example, a CPU/Memory board installed in slot D always contains CPUs 5 and
7, even if there are no other CPU/Memory boards installed in the system.
CPU 0
CPU 1
CPU 2
CPU 3
CPU 5
CPU 6
CPU 7
Slot C
Slot B
Slot A
CPU 4
Slot D