Dell PowerEdge M830 Owner's Manual page 127

The existing passwords are not disabled (erased) until the system boots with the password jumper on
pins 1 and 2. However, before you assign a new system and/or setup password, you must reinstall the
password jumper back to pins 2 and 3.
NOTE: If you assign a new system and/or setup password with the jumper on pins 1 and 2, the
system disables the new password(s) the next time it boots.
6. Turn off the blade using the operating system commands or the CMC.
7. Remove the blade from the enclosure to access the jumpers.
8. Move the jumper on the system-board jumper from pins 1 and 2 to pins 2 and 3.
9. Install the blade in the enclosure.
10. Turn on the blade.
11. Assign a new system and/or setup password.
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