Siemens C79000 Z7076 C638 04 User Manual

6-2

SIMATIC Box PC 620   Operating Manual

C79000-Z7076-C638-04

The PC crashes during power up.

The following causes are possible:

– Double assignment of I/O addresses

– Double assignment of hardware interrupts and/or DMA channels

– Signal frequencies or signal levels are not met

– Different connector assignments

Check your computer configuration:

•

If the computer configuration is the same as when your PC was delivered,
please contact your technical support team (Chapter 8).

•

If the computer configuration has changed, re-establish the configuration you
had when your PC was delivered. Remove any modules from other
manufacturers. Perform a complete restart on your PC.

– If the PC still crashes, you must contact your technical support team.

– If the error no longer occurs, the module you used from another

manufacturer was the cause of the fault. Replace this module with a
Siemens module, or contact the module supplier.