18 Sun Server X4-2 Service Manual • May 2014
Related Information
■ “Field-Replaceable Units” on page 18
■ “Illustrated Parts Breakdown” on page 15
■ “Servicing CRUs That Do Not Require Server Power-Off” on page 45
■ “Servicing CRUs That Require Server Power-Off” on page 61
Field-Replaceable Units
The following table lists the field-replaceable units (FRUs) in the server and directs
you to the replacement instructions.
DVD drive DVD drive on configurations with four
2.5-inch storage drives.
“Servicing the DVD Drive (CRU)” on page 91
Fan modules Contains four fan modules for cooling the
motherboard assembly and installed
components.
“Servicing Fan Modules (CRU)” on page 50
PCIe cards Optional add-on cards that can expand the
functionality of the server.
“Servicing PCIe Cards (CRU)” on page 84
PCIe risers Houses and connects the PCIe cards. “Servicing PCIe Risers (CRU)” on page 74
Power supplies Two fully redundant AC power supplies. “Servicing Power Supplies (CRU)” on page 55
FRU Description Replacement Instructions
Processor Carries out the instructions of the system. “Servicing Processors (FRU)” on page 100
Disk backplane Serves as the interface between storage
drives and the host bus adapter (HBA) card.
“Servicing the Disk Backplane (FRU)” on
page 117
Front indicator
module (FIM)
Contains the front panel controls, indicators,
and USB ports.
“Servicing the Front Indicator Module (FRU)”
on page 125
Motherboard
assembly
Provides connectors for the fans, DIMMs,
processor(s), PCIe risers, and internal USB
ports, and power supplies.
“Servicing the Motherboard (FRU)” on
page 127
Internal HBA
SAS controller
cables
Serve to connect the disk backplane to the
the internal host bus adapter (HBA) card.
“Servicing the SAS Cables (FRUs)” on
page 138
CRU Description Replacement Instructions
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