Sun Microsystems Sun Fire V490 Parts Installation And Removal Manual page 172

2. Slide the centerplane into its guide rails in the chassis.
Chassis guide rail
3. Press firmly and evenly to secure the centerplane connectors to the power
distribution board.
Make sure that the rear lip on the centerplane top stiffener is on the outside of the
chassis.
4. Using a long-stem Phillips No. 2 screwdriver, tighten the four captive screws that
secure the centerplane to the chassis.
5. Using a Phillips No. 2 screwdriver, install the screw that secures the centerplane
top stiffener to the front of the system.
148 Sun Fire V490 Server Parts Installation and Removal Guide • October 2005