
Voltage regulator module (single)
Use this procedure to service a single voltage regulator module.
1.
Power off the unit
Power should be removed from the unit containing the voltage regulator module. If this unit is powered on, power it
off now.
2.
Disconnect the power cords
Disconnect all power cords from the unit you
are servicing.
166
Power Systems: IBM Power 550 Express (8204-E8A and 9409-M50) removal and replacement procedures