Sun Microsystems Enterprise 250 Owner's Manual page 91

3. Loosen the three captive screws securing the main logic board to the rear panel.
Note – Be sure to remove the SSP paddle card and all PCI cards prior to removing
the main logic board. See "Before You Begin" on page 72.
4. Slide the main logic board away from the rear panel until it is free.
5. Pull the bottom edge of the main logic board away from the machine, and lift the
board out of the system.
Place the main logic board on an antistatic mat.
What Next
To replace the main logic board, complete this task:
"How to Install the Main Logic Board" on page 74
Chapter 5 Removing and Installing Main Logic Board Components 73