NEC EXPRESS5800/120Re-2 Service Manual page 20

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Chassis that supports up to two power supply modules. The additional power
supply is needed to provide hot-swappable redundant power (i.e., the system will
continue to operate with a single power supply failure). With two power modules
installed, one power module can be easily removed or installed from the back of
the chassis without turning the system power off.
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Fully lockable front bezel including Server Management software that monitors
the front bezel intrusion switch.
System Chassis
The system chassis (Figure 1-2) is an easy-to-expand, fabricated metal structure. The
major system components are shown in the following illustrations.
A
P
A
B
C
D
E
F
G
H
I
J
K
1-4 System Overview
D
C
B
O
N
SCSI backplane
Power supply unit
Cooling fans
Processor duct (dashed-line)
Riser card (for full-height boards)
Processor (mounted under the CPU and heat sink)
DIMM (Two DIMMs are mounted as standard in slots #1A and #1B.)
Mother board
Riser card (for only low-profile boards)
Front panel board
Cover open sensor
F
E
G
M
L
H
I
J
K