Owner manual

Chapter 9: Troubleshooting
206
software version on the controller card, refer to “Using Local
Management to Verify the Chassis” on page 198 and
“Management Software Releases for the Hardware Components”
on page 69.
 The problem may be with one of the two power supply interfaces
(opto-couplers) on the rear panel of the chassis. For
troubleshooting suggestions, refer to “Power Supply Interfaces
(Opto-couplers)” on page 218.
Caution
The power supply interfaces are not hot swappable and should only
be serviced by an authorized service technician.