Power On a Power Supply

1. Identify the prerequisite and subsequent service tasks you must perform in conjunction with this procedure.

   See Servicing the Power Supplies.

2. Reconnect the power cord to the power supply.

   
   

   The AC LED lights green to indicate the power supply is connected to facility power. A moment later, the OK LED lights green to indicate the power supply is at full power.

3. Verify the power supply’s operation with the checkpower and checkvoltages commands on the management controller.

   For example, to check the power supplies:

   # checkpower
   PSU 0 present status: OK
   PSU 1 present status: OK
   # 

   # checkvoltages
   Voltage ECB OK
   Measured 3.3V Main = 3.28 V
   Measured 3.3V Standby = 3.40 V
   Measured 12V = 12.06 V
   Measured 5V = 5.10 V
   Measured VBAT = 3.17 V
   Measured 1.8V = 1.78 V
   Measured 1.2V Standby = 1.21 V
   Measured 1.8V Standby = 1.80 V
   Measured 2.5VA = 2.51 V
   Measured 2.5VB = 2.51 V
   Measured 1.2VA = 1.22 V
   Measured 1.2VB = 1.21 V
   Measured 1.2VC = 1.21 V
   Measured 1.2VD = 1.21 V
   Measured 1.2VE = 1.21 V
   Measured 1.2VF = 1.21 V
   All voltages OK
   #

Related Information

• Switch Reference, checkpower command

• Switch Reference, checkvoltages command

• Power Off a Power Supply