Recovering From A Post/Bios Update Failure; Power Management; Automatic Configuration And Power Interface (Acpi) Bios - Lenovo ThinkCentre 3026 Maintenance Instructions Manual

Recovering from a POST/BIOS update failure

If the power to your computer is interrupted while POST/BIOS is being updated
(flash update), your computer might not restart correctly. If this happens, perform
the following procedure commonly called Boot-block Recovery.
10. Turn the computer off and back on again. The recovery session begins.
11. After the recovery session is completed, the series of beeps will end, and the
12. Repeat steps 2 through 5.
13. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1
14. Reconnect any cables that were disconnected and reinstall the hard disk drive
15. Close the computer cover and reconnect the power cords for the computer
16. Turn on the computer to restart the operating system.

Power management

Power management reduces the power consumption of certain components of the
computer such as the system power supply, processor, hard disk drives, and some
monitors.

Automatic configuration and power interface (ACPI) BIOS

Being an ACPI BIOS system, the operating system is allowed to control the power
management features of the computer and the setting for Advanced Power
Management (APM) BIOS mode is ignored. Not all operating systems support
ACPI BIOS mode.
1. Turn off the computer and any attached devices, such as printers, monitors,
and external drives.
2. Unplug all power cords from electrical outlets, and open the computer cover.
Refer to "Opening the computer cover" on page 120.
3. Access the system board. Refer to "Removing and reinstalling the front bezel"
on page 86.
4. Locate the Clear CMOS /Recovery jumper on the system board. Refer to
"Locating parts on the system board" on page 122.
5. Remove any cables that impede access to the Clear CMOS/Recovery jumper.
6. Move the jumper from the standard position (pin 1 and pin 2) to the
maintenance position (pin 2 and pin 3).
7. Reconnect any cables that were disconnected and reinstall the hard disk drive
if removed.
8. Close the computer cover and reconnect the power cords for the computer
and monitor to electrical outlets. Refer to "Completing the parts replacement"
on page 115.
9. Turn on the computer and the monitor. Insert the POST/BIOS update (flash)
disc into the optical drive.
Note: The recovery session will take two to three minutes. During this time
you will hear a series of beeps.
system will automatically turn off. Remove the disc from the optical drive
before the system completely turns off.
and pin 2).
if removed.
and monitor to electrical outlets. Refer to "Completing the parts replacement"
on page 115.
Chapter 11. Additional service information
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