Lenovo 6290, Руководство по техническому обслуживанию аппаратной части

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Note:
Type 6290 computers have Enhanced Security Mode. If Enhanced Security mode is enabled
and there is no password given the computer will act as if Enhanced Security is disabled.
If Enhanced Security is Enabled and an administrator password is given the administrator
password must be entered to use the computer. If the administrator password is lost or
forgotten the system board in the computer must be replaced in order to regain access to
the Configuration/Setup Utility program.
Administrator password control
The Administrator password is set in the Setup Configuration. Refer to “IBM Setup
Utility program” on page 9.
Operating system password
An operating system password is very similar to a power-on password and denies
access to the computer by an unauthorized user when the password is activated.
The computer is unusable until the password is entered and recognized by the
computer.
Vital product data
Each computer has a unique Vital Product Data (VPD) code stored in the
nonvolatile memory on the system board. After you replace the system board the
VPD must be updated. To update the VPD see “Flash (BIOS/VPD) update
procedure” on page 89.
Desktop Management Interface (DMI)
Desktop Management Interface (DMI) is data containing a list of the system unit
serial number along with all serialized components (for example system board
riser card memory and processor). This can be viewed with a DMI (SM BIOS)
browser.
Alert on LAN
Alert on LAN provides notification of changes in the computer even when the
computer power is turned off. Working with DMI and Wake on LAN
®
technologies
Alert on LAN helps to manage and monitor the hardware and software features of
the computer. Alert on LAN generates notifications to the server of these
occurrences:
v
Computer disconnected from the network
v
Computer unplugged from the power outlet
v
All POST errors
v
Operating system or POST hang condition
Alert on LAN events are configured to be Enabled or Disabled from the LAN
server only and not from the computer. See the LAN administrator for
configuration status information.
BIOS levels
An incorrect level of BIOS can cause false errors and unnecessary FRU
replacement. Use the following information to determine the current level of BIOS
installed in the computer the latest BIOS available for the computer and where to
obtain the latest level of BIOS.
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Hardware Maintenance Manual