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The BIOS parameters are
changed automatically. |
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When the following case is seen on the PC, the BIOS
parameters may have been changed automatically.
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You found that the PL-x920 didn't connect to the LAN
and checked the BIOS parameters, but the Integrated
Peripherals -> Onboard LAN setting had been changed
to [Disabled]. |
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The calendar information shows completely different
date and time, without obtaining time information from
external resource such as internet. |
● |
The expanded ISA board doesn't work because of a
communication error. |
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Solution |
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Replace the internal battery (a button cell
or coin cell), set the BIOS parameters, and save the settings.
For the procedure, see the following page:
An error "CMOS CHECKSUM ERROR" appears when
powering up and the display unit doesn't start up.
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Why are the BIOS parameters changed automatically?
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General computer products including
Pro-face panel computers are equipped with the BIOS, which
manages connection status with hardware, calendar information,
etc. The BIOS parameters are stored on an IC chip installed on
the mother board of the computer.
The BIOS can keep the
date and time information correct even while the PC is off.
Being powered by a battery (a button cell or coin cell), the
BIOS keeps running continuously. When the battery runs
out, the BIOS parameters cannot be stored and they are all
reset to default. As a result, the cases above mentioned may
happen. |
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