Removing A Cpu (Slot 0) Board - Sun Microsystems Sun Fire E25K Service Manual

If you have a single-board domain and the operating system is up, log into the
I
domain as the domain administrator and shut down the operating system by
typing the following sequence:
domain_name# shutdown -y -g seconds -i 0
where seconds is the amount of time before shutdown.
Power off the hardware associated with the domain by typing:
I
sc% setkeyswitch -d domain_id off
8.2.3

Removing a CPU (Slot 0) Board

Caution – Be sure you are properly grounded before you begin the hardware
removal and installation. There are four ground points on the system cabinet, two at
the front top left and top right, and two at the rear top left and top right.
Caution – After the board is removed, carry the board to a work area holding it
vertically by the front handle with the connector downward. Lift the board and
place the other hand under the bottom, or back, of the board placing the bottom, or
back, on an ESD-protected surface. Never place the weight of a board on its
connector as it is easily damaged.
1. Open the Sun Fire E25K/E20K system cabinet access doors.
Caution – Before removing a board from the system, the green activation LED must
be off and the amber or blue removal OK LED must be on. See
"Powering Off a CPU (Slot 0) Board" on page
2. Insert a Phillips No. 1 screwdriver into top and bottom pawl latches turning
counterclockwise to release the levers operating the two (2) board carrier insert-
eject levers simultaneously (
3. Use the front handle to extract the CPU board, supporting the bottom with the
other hand, and place it on a flat, sturdy, ESD-protected surface with the
component side up.
8-4.
).
FIGURE 8-2
Section 8.2.2,
Chapter 8 CPU (Slot 0) Board 8-5