NEC Express5800 1160Xd User Manual page 18

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Up to two Power Bay Units can be installed in the Main Cabinet. Up to 12
Distributed Power Supply (DPS) modules can be installed. When a 2N redundant
system is configured, up to 3 Power Bay Units can be installed. In this case, the
primary power is supplied from two AC power distribution units.
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One Power Bay Unit can be installed in the I/O Expansion Cabinet. Up to six
DPSs can be installed. When a 2N redundant system is configured, up to 2 Power
Bay Units can be installed.
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Six fans are installed in the 16-way server and 11 fans are installed in the 32-way
server. Any fan module can easily be removed and installed, without powering
down the system.
System Configurations
Main system features are described for each of the Express5800/1000 series standalone
models as follows.
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Express5800/1160Xd Main Cabinet — 16-way server; supporting up to 4 Cell
Boards, with a total of up to 16 CPUs and memory expandability up to 128 GB
using 1-GB DIMMs.
The 16-way server supports the installation of up four PCIX units (one is
required). See Figure 1-2.
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Express5800/1320Xd Main Cabinet — 32-way server, supporting up to 8 Cell
Boards, with up to 32 CPUs and memory expandability up to 256 GB using
1-GB DIMMs.
The 32-way server supports the installation of up two PCIX units (one is
required). See Figure 1-3.
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Express5800/1320Xd I/O Expansion Cabinet — expansion cabinet supporting up
to six PCIX units (one is required). See Figure 1-4.
Figure 1-5 shows PCIX unit features. Figure 1-6 shows internal views of Cell Board
features. For memory slot locations and configuration information, see Appendix B.
See Appendix A, "Technical Specifications," for a list of system specifications.
1-4 System Overview