United States | ||||||
![]() |
||||||
![]() |
![]() |
|||||
Maintenance &
Service Guide
|
NOTE: | If the problem only occurs when an external device is connected to the computer, the problem may be related to the external device or its cable. Verify this by running POST with and without the external device connected. |
6. Install loopback plugs in the serial and parallel connectors if you would like to test these ports.
7. Ensure the hard drive is installed in the computer.
8. Ensure that the battery pack is inserted in the computer and the computer is connected to an external AC power source.
When the preliminary steps are completed, you are ready to run POST.
Clearing the power-on password requires removing all Setup attributes that are programmed in the CMOS. If the password is not known, clear it by performing the following steps:
1. Turn off the computer.
2. Disconnect the power cord.
5. Remove the RTC battery (1) for 30 seconds as shown below. The password, together with other Setup attributes, will be cleared.
Clearing the Power-On Password
6. Turn the computer on to verify the power-on password has been cleared. If it has not been cleared, repeat these steps.
![]() |
![]() |
privacy and legal statement |