IBM ThinkPad 240X, Руководство по техническому обслуживанию аппаратной части

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The following symptoms might indicate damage caused by
non-warranted activities:
Ÿ
Missing parts might be a symptom of unauthorized
service or modification.
Ÿ
Hard disk drive spindles can become noisy from
being subjected to excessive force or from being
dropped.
How to Disable the Password
There are three passwords used at a typical customer site:
the Supervisor Password, the hard disk drive password,
and the Power On password.
Ÿ
Power On password:
1. Power off the computer.
2. Remove the battery pack and AC Adapter.
3. Open the keyboard and disconnect the keyboard
connector from the system board, see “1030
Keyboard” on page 45.
4. Short the jumper JP1. See the following figure:
5. Close the keyboard.
6. Power on the computer and wait until POST
ends.
7. Verify that the password prompt does not
appear.
Ÿ
Supervisor and hard disk drive passwords:
The Supervisor Password and hard disk drive pass-
word are security features that are used to protect the
system and the hard disk drive data from unauthor-
ized access. No overriding capability is provided, so it
cannot be replaced if they are forgotten. If the cus-
tomer forgets the Supervisor Password, the system
board must be replaced. If the customer forgets the
hard disk drive password, the hard disk drive must be
replaced.
General Description
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