Itanium 2 Processors; System Memory; Xbc Board; Pcix Unit - NEC Express5800 1160Xd User Manual

Main Components
The following sections provide information about server components.

Itanium 2 Processors

Depending on system configuration, your system uses Intel Itanium 2 64-bit
1.3-GHz/3-MB or 1.5-GHz/6-MB processors. Four Intel Itanium 2 processors are
installed within one Cell Board. See Figure 1-6.
Up to 4 Cell Boards with a total of up to 16 CPUs can be installed in the 16-way server
(1160Xd) and up to 8 Cell Boards with a total of up to 32 CPUs can be installed in the
32-way server (1320Xd). All processors installed in your system must be of identical
bus and core speed.

System Memory

Each Cell Board in your system contains sixteen 168-pin DIMM sockets on the Cell
Board and another sixteen DIMM sockets on the Cell Board daughterboard.
See Figure 1-6. Memory DIMMs must be populated four at a time with 1-GB ECC
SDRAM DIMMs. Depending on the number and capacity of DIMMs installed, each
Cell Board can include from 4 GB up to 32 GB of memory using 1-GB DIMMs.
The 16-way server (1160Xd)supports up to 128 GB of memory using 1-GB DIMMs.
The 32-way server (1320Xd) supports up to 256 GB of memory using 1-GB DIMMs.

XBC Board

The XBC Board consists of one Cross-Bar Controller (XBC). You can connect this
board with up to 4 Cell Boards to perform data transfer among Cell Boards. In a
standard configuration, a 16-way server has 2 XBC Boards and a 32-way server has 4
XBC Boards – however, the system configuration you have might vary.

PCIX Unit

The server's PCIX Unit expansion capabilities meet the needs of file and application
servers for high performance I/O by providing 14 hot-swap PCI-X expansion slots.
The PCI-X slots allow PCI-X boards to be installed or removed while the server is
powered on (if the operating system supports the Hot Plug PCI function). A Basic I/O
Board supporting the standard I/O interface and a video VGA controller board are
installed in the Core Unit model. The Basic I/O Board and video VGA board are not
hot-swappable.
Note: Your operating system must support the Hot Plug PCI
function.
1-10 System Overview