IBM eServer 135 xSeries User Reference Manual page 48

System board switch block
The switch block contains microswitches 1–8. As pictured in this illustration, switch 1
is at the top of the switch block, and switch 8 is at the bottom. For a more information
about this switch block see "Setting the password override switch" on page 16.
The following table describes the function for each switch.
Table 3. Switches 1-8
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IBM xSeries 135: User's Reference
Switch Switch
number description
1 Reserved.
2 Reserved.
3 Reserved.
4 Reserved.
5 Reserved. The default setting is Off (disabled).
6 Reserved. The default setting is Off.
7 Reserved. The default setting is Off.
8 Bypass power-on password.
When toggled to the opposite position, bypasses the power-on password,
if one is set. Refer to "Setting the password override switch" on page 16.