Frequently Asked Questions  Q: How do I replace a redundant
power module?    1. Determine which power module has failed. The
light-emitting diode (LED) on the module turns off when the
module fails.    2. Loosen the thumbscrew that secures the
module to the rear panel of the chassis.    3. Press the locking
tab toward the center of the module and carefully slide the
module from the power supply.    4. Slide the new power module
into the power supply housing, verifying that the connector is
firmly seated.    5. Tighten the thumbscrew to secure to new
module into position.