Technical Reference Guide 4–17
Troubleshooting
Resetting the BMC Password
To reset the BMC password:
1. Shut down the operating system and then turn off the workstation and any external devices.
Disconnect the power cord of the workstation and any external devices from the power
outlets.
2. Disconnect the keyboard, monitor, and any other external devices that are connected to the
workstation.
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WARNING: To reduce the risk of personal injury from electrical shock and hot surfaces, be sure to
disconnect the power cord from the wall outlet and allow the internal system components to cool before
touching.
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CAUTION: When the workstation is plugged in, the power supply always has voltage applied to the
system board even when the unit is turned off. Failure to disconnect the power cord can result in damage
to the system.
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CAUTION: Static electricity can damage the electronic components of the workstation or optional
equipment. Before beginning these procedures, be sure that you are discharged of static electricity by
briefly touching a grounded metal object.
3. Remove the access panel.
4. Remove the airflow guide and disconnect the memory fan.
5. Remove the power supply.
6. Locate the password header at J25, which is located at the edge of the system board between
the chassis fan connector and the input power connector (CPU 0).
7. Place a jumper on pins 7 and 8 (connecting both pins together). You must provide your own
jumper.
8. Reinstall the power supply.
9. Plug in the workstation and wait for the BMC heartbeat LED to start blinking green. There is
about a 5-second delay before the LED begins to blink green.
10. Unplug the AC power cord and remove the jumper.
11. Replace the access panel.
12. Plug in the AC power cord and boot the system. The passwords are cleared.
✎
NOTE: The password jumper only has to be installed for a few seconds while AC power is
connected (system power does not have to be on). The BMC logs an event in the SEL when the
jumper is set.
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