Replacing The External I/O Expansion Unit Chassis; Locating The New System Serial Number Label; Preparing The External I/O Expansion Unit - Oracle SPARC Enterprise M4000 Installation And Service Manual

12. Power up the link.
See
4.12 Replacing the External I/O Expansion
Unit Chassis
In this procedure, the following parts are moved from the old chassis to the
replacement chassis:
Front bezel
■
I/O boat(s)
■
PSUs
■
4.12.1

Locating the New System Serial Number Label

The replacement chassis has a new system serial number. This serial number label is
located inside the left I/O boat bay.
In the following procedure, new serial number labels will be attached to the old
bezel, and the old bezel will be used with the new chassis.
New system serial number labels are not provided for the top cover. The old top
cover will not be used on the new chassis.
4.12.2

Preparing the External I/O Expansion Unit

1. Use an antistatic strap for this procedure.
2. Unpack the replacement chassis and place it on an antistatic work space.
Note – Use an antistatic work space that is wide enough to accommodate two
External I/O Expansion Units side by side (40 in./1000 mm).
3. Power down the link.
See
4. Turn off the AC switches on both PSUs at the front of the External I/O
Expansion Unit.
4-24 External I/O Expansion Unit for SPARC Enterprise Mx000 Servers Installation and Service Manual • April 2011
Section 4.13, "Powering Up a Link After Service" on page
Section 4.4, "Powering Down a Link Before Service" on page
4-33.
4-6.