System Overview 1-17
CAUTION
Contact qualified personnel, such as your System Administrator or
an NEC Technician, for adding or removing server components.
Cell Board
Each Cell Board supports:
! 4 Intel Itanium 2 processors
! 32 DIMMs (16 on the Cell Board, 16 on the Cell Board daughterboard).
The 16-way server supports up to 4 Cell Boards for a total of 16 Itanium 2 processors
and up to 32 DIMMs per board.
The 32-way server supports up to 8 Cell Boards for a total of 32 Itanium 2 processors
and up to 32 DIMMs per board.
CPUs
Each Cell Board supports 4 Itanium 2 processors. The system supports the following
processor types:
! Intel Itanium 2 1.3GHz/3MB of level 3 cache
! Intel Itanium 2 1.5GHz/6MB of level 3 cache
The same type processor must be used in the system. The two types cannot be mixed
within a single system.
Memory
Each Cell Board with memory daughterboard supports up to 32 DIMMs (16 on the Cell
Board, 16 on the daughterboard) in the following configurations:
! Memory must be installed in groups of 4 DIMMs of the same capacity.
! Memory capacity can vary between different groups
! At least one group of four DIMMs is required in the system.
! Each Cell Board supports up to 4 groups of 4 DIMMs; each memory
daughterboard supports up to 4 groups of 4 DIMMs.
! A memory groups includes four 1-GB DDR DIMMs for total capacity of 4 GB in
a group.
! Maximum memory capacity using currently available 1-GB DIMMs is 32 GB
per Cell Board with memory daughterboard.
For detailed memory configuration information, see Appendix B. in this guide.
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