Internal Board View; Customer Replaceable Units (Crus) - NEC Express5800 320La User Manual

Internal Board View

Figure 1-8 shows the major boards and backplanes inside the server.
Figure 1-8 Major Boards and Backplanes Inside the Server

Customer Replaceable Units (CRUs)

Certain hardware components within the server are defined as Customer Replaceable
Units (CRUs) of which most are hot-pluggable and redundant. Table 1-8 lists the CRUs
and whether they are hot pluggable or redundant hardware components.
H
G
F
A
Front panel board
B Device backplane
(IDE device relay boards)
C PCI board (located in PCI module)
D CPU board (located in CPU module)
E
Main Backplane board
F
I/O panel board
G
Power backplane
H SCSI backplane
Table 1-7. Customer Replaceable Units (CRUs)
CRU
CPU module
Device module
PCI module
Power supply
PCI adapter cards
Hard disk drives
Only if PCI adapter cards are identical in both PCI modules.
"
A
C
D
E
Hot
Redundant Pluggable
Yes Yes
No No
Yes Yes
Yes Yes
No
Yes
"
Yes Yes
B
System Overview 1-13