PWR1912

PWR1912

The server detected an error in the power system.

DANGER

When working on or around the system, observe the following precautions:

Electrical voltage and current from power, telephone, and communication cables are hazardous. To avoid a shock hazard:

Connect power to this unit only with the IBM provided power cord. Do not use the IBM provided power cord for any other product.
Do not open or service any power supply assembly.
Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.
The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords.
Connect all power cords to a properly wired and grounded electrical outlet. Ensure that the outlet supplies proper voltage and phase rotation according to the system rating plate.
Connect any equipment that will be attached to this product to properly wired outlets.
When possible, use one hand only to connect or disconnect signal cables.
Never turn on any equipment when there is evidence of fire, water, or structural damage.
Disconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.
Connect and disconnect cables as described in the following procedures when installing, moving, or opening covers on this product or attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
(D005)

Perform the following:
1. Ensure that both power line cords are properly connected.
2. Make sure that the unit EPO switch is in the on position.
3. Make sure that the unit EPO bypass switches on both bulk power controllers (BPCs) are in the normal position.
4. Ensure that the cable from unit EPO connector J00 to BPC-A connector J05 and the cable from unit EPO connector J01 to BPC-B connector J05 are secure and undamaged.
5. Ensure that the room temperature is not in excess of the maximum allowed (40° Celsius or 104° Fahrenheit).
  Note:
  
  If the room temperature has exceeded the maximum allowed, the system may continually cycle on and off.
Were any problems discovered while performing the above checks?
- No: Continue with the next step.
- Yes: Correct any problems you found. This ends the procedure.
Make sure that the on/off switches on all the bulk power regulators (BPRs) are in the on (left) position.
Note:

A switch set to the off position is not the cause of your problem, but they all need to be on before proceeding.
Check the state of the LEDs on both sides of the bulk power assembly (BPA) and then choose from the following conditions:
- If all of the LEDs on both sides of the BPA are in the off position, go to step 4.
- If the unit EPO power LED is turned on, the BPC GOOD LED is turned on, and all other LEDs are in the off position, go to step 5.
- If neither of the above two conditions is true, independent faults are indicated on both sides of the BPA. Each side must be isolated separately. Call your next level of support. This ends the procedure.
Prepare a voltage meter to measure up to 600 V ac. Using the labelled test points on the frame, measure the voltage between phase A and phase B. Is the voltage greater than 180 V ac?
- Yes: Independent faults are indicated on both sides of the BPA. Each side must be isolated separately. Call your next level of support. This ends the procedure.
- No: Inform the customer that power line voltage at the input to the BPR is missing or too low and needs to be corrected. This ends the procedure.
Is a cable connected to connector J02 on the unit EPO card?
- No: Continue with the next step.
- Yes: Go to step 7 to determine if the room EPO circuit is the problem.
Is the internal toggle switch on the unit EPO card set to the RM EPO BYPASS position?
- No: Set the internal toggle switch on the unit EPO card to the RM EPO BYPASS position. This ends the procedure.
- Yes: The unit EPO card is the failing item and needs to be replaced. This ends the procedure.
Unplug the cable from connector J02 on the EPO card and set the toggle switch to the RM EPO BYPASS position. Does the EPO CMPLT LED on at least one BPC become lit?
- Yes: Inform the customer that the room EPO circuit is defective at this connection and requires service. This ends the procedure.
- No: The unit EPO card is the failing item and needs to be replaced. This ends the procedure.