Lenovo ThinkServer RS110, Hardware Maintenance Manual

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If you forget the administrator password, you can reset it after you change the
position of the clear CMOS jumper. See “Resetting passwords” for additional
information.
Resetting passwords: If you forget the power-on password or administrator
password, you can move the clear-CMOS jumper block on the system board to pins
2 and 3, to clear CMOS memory and bypass the power-on or administrator
password check. The jumper location is shown in the following illustration.
To clear CMOS and reset the passwords, complete the following steps.
Note: All configuration settings will be cleared by this action; you might have to
configure the settings again.
1. Review the safety information that begins on page vii.
2. Turn off the server and peripheral devices and disconnect all power cords and
external cables.
3. Remove the server from the rack and place it on a flat, static-protective
surface.
4. Remove the cover. See “Removing the cover” on page 60 for instructions.
5. If necessary, remove the riser-card assembly. See “Removing the riser-card
assembly” on page 88 for instructions.
6. Move the clear-CMOS jumper from pins 1 and 2 to pins 2 and 3 and leave it
there for at least 5 seconds; then, move the clear-CMOS jumper back to pins 1
and 2.
7. Reinstall the riser-card assembly. See “Installing the riser-card assembly” on
page 89 for instructions.
8. Reinstall the cover.
9. Replace the server in the rack and connect the server to a keyboard, monitor,
and mouse; then, connect the server to a power source.
Chapter 2. Configuration information and instructions
23