Replacing the RSC card
4. Turn the key switch to the Forced Off position. See the following figure.
!
DANGER:
Be sure to turn the key switch to the Forced Off position before handling any internal components. Otherwise, it is possible for a user to restart the system remotely while you are working inside it. The Forced Off position is the only key switch position that prevents an RSC user from restarting the system.
5.Turn off the system monitor.
6.Turn off any external SCSI devices, starting with the device that is closest to the system and working toward the farthest device.
7.Disconnect the AC power cords from all power supplies.
8.Open the left door.
9.Attach one end of an ESD antistatic wrist strap to the system chassis sheet metal and attach the other end to your wrist. See Using an ESD wrist strap on page 58 for more information.
10.Disconnect any external cables connected to the RSC card.
11.Using a Phillips No. 1 screwdriver, remove the screw that secures the card to the system rear panel.
Issue 2.0 June 2004 95
