When I boot my system, I get the error ``ahc0: illegal cable configuration''. My cabling is correct. What is going on?

Your motherboard lacks the external logic to support automatic termination. Switch your SCSI BIOS to specify the correct termination for your configuration rather than automatic termination. The AIC7XXX driver cannot determine if the external logic for cable detection (and thus auto-termination) is available. The driver simply assumes that this support must exist if the configuration contained in the serial EEPROM is set to "automatic termination". Without the external cable detection logic the driver will often configure termination incorrectly, which can compromise the reliability of the SCSI bus.



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