Component Serviceability, Locations, and Designations
66
Sun Server X4-4 Service Manual • October 2015
Component Serviceability
The replaceable components in your server are designated as either a customer-replaceable unit
(CRU) or a field-replaceable unit (FRU). A part designated as a FRU must be replaced by an
Oracle-qualified service technician. A part designated as a CRU can be replaced by a person
who is not an Oracle-qualified service technician.
If the component can be serviced while the server is powered on, it is called a hot-service
component. If the server has to be powered off before the component can be serviced, it is
called a cold-service component.
The following table lists the components, their service designations, and their serviceability.
Component
Service Designation
Serviceability
Storage drives
CRU
Hot
Fan modules
CRU
Hot
Power supplies
CRU
Hot
Memory risers and DIMMs
CRU
Cold
PCIe cards
CRU
Cold
DVD drive
CRU
Cold
System battery
CRU
Cold
CPUs and heatsinks
FRU
Cold
Fan board
FRU
Cold
Power supply backplane
FRU
Cold
Storage drive backplane
FRU
Cold
HBA cable (HBA-to-disk
backplane)
FRU
Cold
SP card
FRU
Cold
Motherboard
FRU
Cold
Location of Replaceable Components
The following illustrations show the Sun Server X4-4 components:
■
“Replaceable Components” on page 67
■
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