Specifications

Maintenance & Service Guide 5–7

Connectors and Jumpers

5.1.4 Clearing CMOS

The workstation configuration memory (CMOS) may occasionally be corrupted. When this

occurs, it is usually due to software or hardware that is not functioning accurately, or to the

addition or removal of expansion boards. If the workstation configuration memory becomes

corrupted, it is necessary to clear the configuration memory.

1. Turn off the workstation and any external devices, then disconnect the power cord from

the grounded AC outlet.

CAUTION: When the unit is plugged in, the power supply always has 5 volts 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.

CAUTION: Static electricity can damage the electronic components of the workstation or

optional equipment. Before beginning these procedures, ensure that you are discharged

of static electricity by briefly touching a grounded metal object.

2. Remove the access panel to access the system board.

3. Locate the SW50 pushbutton switch on the system board.

4. Press the SW50 pushbutton switch to clear the workstation CMOS.

5. Replace the access panel.

6. Reconnect the network cable and external devices.

7. Plug in the workstation and turn on the power.

✎

When the Clear CMOS Button is pressed, your passwords will become invalid

because the passwords are stored in the configuration memory. Reset your

passwords and any special system setups.