Removing And Installing Miscellaneous Assemblies; How To Remove A Power Supply - Sun Microsystems Fire V890 Service Manual

5
C H A P T E R
Removing and Installing
Miscellaneous Assemblies
This chapter describes how to remove and install miscellaneous assemblies in the
system. For a list of part numbers for field-replaceable units (FRUs) and optional
equipment, see
The following tasks are covered in this chapter:
"How to Remove a Power Supply" on page 155
■
"How to Install a Power Supply" on page 160
■
"How to Remove the System Status Assembly" on page 163
■
"How to Install the System Status Assembly" on page 166
■

How to Remove a Power Supply

Caution – A power supply must always occupy each power supply bay. If a power
supply fails, you must leave the failed power supply in its bay until your are able to
install a functioning replacement power supply. A failed power supply still acts as
an air baffle channeling airflow to cool the bottom row of disk drives in the disk
cage. Replace the failed power supply as soon as possible to regain N+1 power
redundancy.
Note – During a hot-swap operation, after you remove a fan tray or power supply,
wait for an acknowledgement message on the system console before installing a
replacement part; otherwise, the environmental monitoring software will not
recognize the new device and false error conditions will result.
"Illustrated Parts Breakdown" on page 247.
155