NEC Express5800/A1080a, User Manual, Page: 42 / 696

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Feature of Each Model
There are 3 types of models for the server.
● A1080a-S Model
● A1080a-D Model
● A1080a-E Model
A1080a-S Model
A1080a-S model can mount up to four processors. The memory configuration is from 4GB (2GB
x 2) for the minimum to 1TB (16GB x 64) for the maximum.
At least one processor memory module is required for A1080a-S model.
A1080a-S model aims to improve performance by reducing the QPI (Quick Path Interconnect)
connection of lower number processor memory modules #1, #2, #3 and #4 in the server of
A1080a-E model, and by increasing the QPI connection instead. The following configuration is
available for this model.
Only Server 1 is configured on A1080a-S model.
* PMMx is an abbreviation of a processor memory module.
* IOHx is an abbreviation of an I/O hub.
* ICH is an abbreviation of an I/O control hub.
PMM1
PMM3
PMM4
PMM2
IOH1
IOH2
ICH
Server 1