Lenovo 6534 Computer Hardware User Manual


 
If you forget the administrator password, you can reset it after you change the position of the clear CMOS
jumper.
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.
Microprocessor
Heatsink
Orientation
DIMMs
DIMMs
Table 23. System board jumpers
Jumper number Jumper name Jumper setting
JP1
Clear CMOS jumper 1 Pins 1 and 2: Keep CMOS data
(default).
Pins 2 and 3: Clear CMOS data
(including power-on password and
administrator password)
JP6 Boot block jumper 2
Pins 1 and 2: Boot from primary
BIOS page (default) .
Pins 2 and 3: Boot from backup
BIOS page.
Notes:
1. If no jumper is present, the server responds as if the pins are set to 1 and 2.
2. Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and 3 before the server is
turned on alters which ash ROM page is loaded. Do not change the jumper pin position after the server is
turned on. This can cause an unpredictable problem.
Using the Boot Manager program
The Boot Manager program is a built-in, menu-driven conguration utility program that you can use to
temporarily redene the rst startup device without changing settings in the Setup Utility.
202 Hardware Maintenance Manual