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 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
On-screen error messages
On-screen error message
Operating system not found
Keyboard controller error
SMART failure detected on HDD
CMOS battery failed
CMOS battery weak
Real-time clock has lost power
PLD configuration failed
Operating Instructions, 11/2016, A5E35782395-AB
Meaning / tip
No operating system installed
Incorrect active boot partition
Wrong boot drive settings in SETUP
Contact your technical support team.
Hard disk reports pending failure through S.M.A.R.T.
CMOS battery is not connected.
CMOS battery is weak
The CMOS clock was operated without battery or with a bat-
tery that was too weak, during battery change, for example.
Check the CMOS clock.
Field PG: Internal keyboard defective and no external
Other devices: Keyboard defective or not connected
Programming of the PLC on the motherboard has failed.
7.7 Functional scope in Windows