Technical specifications
8.6 BIOS description
SIMATIC IPC277E
Operating Instructions, 11/2019, A5E35783335-AE
135
8.6.7 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
Operating system not found Possible causes:
• No operating system installed
• Incorrect active boot partition
• Wrong boot drive settings in SETUP
Keyboard controller error Controller error.
Contact your technical support team.
SMART failure detected on HDD Hard disk reports pending failure through
CMOS battery is not connected.
Real-time clock has lost power The CMOS clock was operated without battery or
with a battery that was too weak, during battery
change, for example. Check the CMOS clock.
Keyboard error
• Field PG: Internal keyboard defective and no
external keyboard connected
• Other devices: Keyboard defective or not
connected
PLD configuration failed Programming of the PLC on the motherboard