Alarm, Error and System Messages   
12.1 Boot error messages 
  SIMATIC Box PC 627 
12-2  Operating Instructions, Release 05/2006, A5E00362052-03 
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.