About System Components
CRU Description Replacement Instructions
Internal USB flash
drive
Optional support for one internal USB flash drive. “Servicing an Internal USB Flash
Drive (CRU)” on page 109
Fan modules Four fan modules for cooling the server
components.
“Servicing Fan Modules
(CRU)” on page 85
PCIe cards Optional add-on cards that can expand the
functionality of the server.
“Servicing PCIe Cards
(CRU)” on page 133
Power supply units
(PSUs)
Two fully redundant AC-powered power supplies. “Servicing Power Supplies
(CRU)” on page 93
Related Information
■
“Field-Replaceable Units” on page 22
■
“Illustrated Parts Breakdown” on page 20
Field-Replaceable Units
The following table lists the field-replaceable units (FRUs) in the server and directs you to the
replacement instructions.
FRU Description Replacement Instructions
Processor and heatsink The processor that carries out the instructions of the
system.
“Servicing Processors
(FRU)” on page 145
Disk backplane Provides power and communications connectors for
storage drives.
“Servicing the Disk Backplane
(FRU)” on page 159
SAS cables Provide signals between the front disk backplane
and the Oracle Storage 12 Gb SAS PCIe RAID
HBA, Internal card.
“Servicing SAS Cables
(FRU)” on page 189
NVMe cables Provide signals between the Oracle PCIe NVMe
switch cards and the disk backplane.
“Servicing NVMe Cables
(FRU)” on page 195
Oracle Storage 12
Gb SAS PCIe RAID
HBA, Internal card
and super capacitor
Located in PCIe slot 11, the Oracle Storage 12 Gb
SAS PCIe RAID HBA, Internal card manages SAS
storage drives.
“Servicing the Internal HBA Card
(FRU) and HBA Super Capacitor
(CRU)” on page 181
Front LED indicator
module
Contains the push-button circuitry and LEDs that
are displayed on the front panel.
“Servicing the Front LED Indicator
Module (FRU)” on page 167
Temperature sensor Provides temperature information for the system. “Servicing the Temperature Sensor
(FRU)” on page 175
Motherboard assembly Provides connectors for the DIMMs, processors,
PCIe risers, and other components.
“Servicing the Motherboard
Assembly (FRU)” on page 203
22 Oracle Server X8-2L Service Manual • January 2021
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