IBM ThinkPad 390, Руководство по техническому обслуживанию аппаратной части

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Fuses blown by attachment of a nonsupported device
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Forgotten computer password (making the computer
unusable)
The following symptoms might indicate damage caused by
by nonwarranted activities:
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Missing parts might be a symptom of unauthorized
service or modification.
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HDD spindles can become noisy from being sub-
jected to excessive force or from being dropped.
How to Disable the Password
There are three passwords used at a typical customer site:
the Setup password, the HDD password, and the Power
On password.
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Power On password:
1. Power off the computer.
2. Remove the battery pack and AC Adapter.
3. Remove the backup battery (RTC) for 20
minutes or use a screwdriver to touch the
backup battery (RTC) for 1 second.
4. Put back the backup battery (RTC).
5. Power on the computer and wait until POST
ends.
6. Verifty that the password prompt does not
appear.
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Supervisor and HDD passwords:
The Supervisor password and HDD password (HDD-1
and HDD-2) are security features that are used to
protect the system and the hard disk drive data from
unauthorized access. No overriding capability is pro-
vided, so it cannot be reset if forgotten. If the cus-
tomer forgets the Supervisor password, the planar
board must be replaced. If the customer forgets the
HDD password, the hard disk drive must be replaced.
Product Overview
The following shows an overview of the system features of
the ThinkPad 390/i Series 1700 computer.
Feature Description
Processor
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Intel** Pentium** MMX**
processor 233 MHz, L2 cache
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Intel** Pentium** II processor
233 MHz, L2 cache
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Intel** Pentium** II processor
266 MHz, L2 cache
Bus architecture PCI Bus
ThinkPad 390/i Series 1700
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