Power Management; Automatic Configuration And Power Interface (Acpi) Bios; Automatic Power-On Features - Lenovo ThinkCentre 7515 Hardware Maintenance Manual

10. Turn the computer off and back on again.
11. The recovery session will take two to three minutes. During this time you will
12. Repeat steps 2 through 5.
13. Move the jumper back to the standard position (pin 1 and pin 2).
14. Reconnect any cables that were disconnected.
15. Reinstall or close the computer cover and reconnect the power cords for the
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.

Automatic Power-On features

The Automatic Power-On features within the Power Management menu allow you
to enable and disable features that turn on the computer automatically.
v RTC resume: You can specify a date and time at which the computer will be
v Wake on LAN: If the computer has a properly configured token-ring or Ethernet
2. Remove or open the computer cover. See "Removing the computer cover" on
page 86 or "Opening the computer cover" on page 126.
3. Depending on your machine type, you might need to lay the computer on its
side for easier access to the system board or you might need to pivot the
optical drive bay assembly upward and or remove the hard disk drive to
access the system board, see "Accessing the system board components and
drives" on page 127.
4. Locate the Clear CMOS/Recovery jumper on the system board. See "Locating
parts on the system board" on page 89 or "Locating parts on the system
board" on page 129.
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 pin 2 and
pin 3.
7. Reconnect any cables that were disconnected.
8. Reinstall or close the computer cover and reconnect the power cords for the
computer and monitor to electrical outlets. See "Completing the FRU
replacement" on page 120 or "Completing the FRU replacement" on page 155.
9. Turn on the computer and the monitor, and then insert the POST/BIOS
update (flash update) disc into the optical drive.
hear a series of beeps. After the update session is completed, there will be no
video, the series of beeps will end, and the system will automatically turn off.
Remove the disc from the optical drive before the system completely turns off.
computer and monitor to electrical outlets. See "Completing the FRU
replacement" on page 120 or "Completing the FRU replacement" on page 155.
turned on automatically. This can be either a single event or a daily event.
LAN adapter card that is Wake on LAN-enabled and there is remote network
Chapter 11. Additional service information
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