Alarm, error and system messages
12.1 Boot error messages
SIMATIC Rack PC 840 V2
12-2 Operating Instructions, Edition 05/2006, A5E00248055-04
On-screen error message Meaning / suggestions
System RAM Failed at offset: Memory error.
Contact your technical support team.
Shadow RAM Failed at offset: Memory error.
Contact your technical support team.
Extended RAM Failed at offset: Memory error.
Contact your technical support team.
Failing Bits: Memory error.
Contact your technical support team.
Operating system not found Possible causes:
• No operating system present
• Wrong drive addressed (disk in drive A/B)
• Incorrect active boot partition
• Wrong boot drive settings in SETUP
• Hard disk is not connected / defective
Previous boot incomplete
Default configuration used
Abort of the previous BOOT procedure, for example, due to a
power failure. Adjust the settings in SETUP.
System cache error Cache
disabled
Error in the CPU’s cache module.
Contact your technical support team.
Monitor type does not match
CMOS Run SETUP
The monitor does not match the SETUP entries.
Adapt the SETUP entries to the monitor.
System time-out Hardware error.
Contact your technical support team.
Real-time clock error Clock chip error.
Contact your technical support team.
Keyboard controller error Keyboard error.
Contact your technical support team.
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