Alarm, Error And System Messages - Siemens SIMATIC IPC477E PRO Operating Instructions Manual

Technical specifications
9.6 BIOS description
9.6.6

Alarm, error and system messages

During startup (the boot process), the BIOS first performs a Power On Self Test (POST) and
checks whether certain functional units of the PC are operating error-free. The boot
sequence is immediately interrupted if critical errors occur.
BIOS initializes and tests further functional units if the POST does not return any errors. In
this startup phase, the graphics controller is initialized and any error messages are output to
the screen.
The error messages output by system BIOS are listed below. For information on error
messages output by the operating system or application programs, refer to the
corresponding manuals.
On-screen error messages
On-screen error message
Operating system not found
CMOS battery failed
Real-time clock has lost power
144
Meaning / tip
Possible causes:
No operating system installed
•
Incorrect active boot partition
•
Wrong boot drive settings in SETUP
•
CMOS battery is empty or not connected.
The CMOS clock was operated without battery
or with a battery that was too weak, during bat-
tery change, for example. Check the CMOS
clock.
Operating Instructions, 08/2017, A5E39912462-AA
SIMATIC IPC477E PRO