IBM eServer xSeries 255 Option Installation Manual page 20

Table 1 describes the function of each switch on the switch block.
Table 1. Switches 1-8
Switch Default value
number
7 to 8 Off
6 Off
1 to 5 Off
The following illustration shows the location of the flash ROM page-swap jumper
(J50) on the system board. When this jumper is moved to the non-default position,
it recovers the server BIOS code. The default position is pins 1 and 2. See the
Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries
Documentation CD for complete details.
Notes:
1. Before changing any switch settings or moving any jumpers, turn off the server;
8
IBM xSeries 255 Type 8685: Option Installation Guide
Switch
description
Reserved.
Power-on password override. Changing the position of this switch bypasses the
power-on password check if the switch setting has been changed since the server
was last powered on. You do not need to move the switch back to the default position
after the password is overridden.
Changing the position of this switch does not affect the administrator password check
if an administrator password is set.
See the User's Guide on the IBM xSeries Documentation CD for additional
information about the power-on password.
Reserved.
3 2 1
then, disconnect all power cords and external cables.
Flash ROM page-swap
jumper (J50)