Sun Microsystems Enterprise 250 Owner's Manual page 219

Figure 9–5
3. Remove the board from the chassis, and place it on an antistatic mat.
What Next
To replace the power distribution board, complete this task:
4 "How to Install the Power Distribution Board" on page 185
How to Install the Power
Distribution Board
What to Do
1. Position the power distribution board in its mounting brackets on the chassis
ceiling and floor.
185
Removing and Installing Backplanes and Cables