Product Documentation
Abstract
If the power-on indicator is not on, the power-supply fan is not running, or the computer will not power-off.
Content
Power Supply
If the power-on indicator is not on, the power-supply fan is not running, or the computer will not power-off, do the following.
| Check/Verify | Action |
|---|---|
| 1. Verify that the voltage-selector switch is set for the correct voltage. | Correct the voltage-selector switch setting. |
| 2. Check the following for proper installation: Power Cord On/Off Switch connector On/Off Switch Power Supply connector System Board Power Supply connectors | Reseat |
| 3. Check the power cord for proper continuity. | Power Cord |
| 4. Check the power-on switch for continuity. | Power-on Switch |
If these are correct, check the following voltages.
System Board Connections
NOTE: These voltages must be checked with the power supply cables connected to the system board.
If the voltages are not correct, and the power cord is good, replace the power supply.
If the voltages are correct, and the computer you are servicing has a power supply connector on the riser card, check the following riser card voltages:
Riser card connections
NOTE: These voltages must be checked with the power supply cable connected to the riser card.
If the voltages are not correct, and the power cord is good, replace the power supply.
Document Location
Worldwide
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Document Information
Modified date:
23 January 2019
UID
ibm1DDSE-44JQSG