System Boards, Physical
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System Boards, Physical
The Sun Fire system board houses either two or four UltraSPARC™-III Cu
900 MHz, 1050 MHz or 1200 MHz processors, or UltraSPARC™-III
750MHz processors.
Each processor supports two
physical
banks of memory.
Each memory bank consists of four dual inline memory modules
(DIMMs) which gives, 8 x DIMMS per CPU (See page 18)
Memory capacity can also be mixed but not within the same bank.
The processor’s L2-SRAM (also known as Ecache) consists of two cache
modules mounted on their own pcb’s, each module being 4MB in size,
giving 8MB per CPU.
Neither the CPU modules or the L2-SRAMs are field replacable.
Mixing CPU speeds of 900MHz, 1050MHz and 1200MHz within a
domain or platform is supported.
750MHz CPUs cannot be included in mixed-speed configurations.
