4-24
External I/O Expansion Unit for SPARC Enterprise M
x
000 Servers Installation and Service Manual • April 2011
12. Power up the link.
See
Section 4.13, “Powering Up a Link After Service” on page 4-33
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
Section 4.4, “Powering Down a Link Before Service” on page 4-6
.
4. Turn off the AC switches on both PSUs at the front of the External I/O
Expansion Unit.
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