Power Supply Troubleshooting
Table
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| Lights on |
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| Front Panel Lights | Back of |
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| Power |
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| Supply |
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| ONSwitchPower |
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System Status | PowerLogicSwitchGood LED | FailSupplyPowerLED (Red) | TemperatureOverLED (Red) | GoodSupplyPowerLight |
| TemperatureOverLED (Red) | Fan | Corrective Action | |
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Chassis OFF | Off | NA* | Off | Off |
| Off | Off | No | Press the |
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| appropriate Power |
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| Switch to 1 (ON) |
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ON - OK | On | NA* | Off | On |
| Off | On | Yes | None |
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AC source | Off | NA* | Off | Off |
| Off | Off | Yes | Check AC source, |
disruption |
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| plug, and fuse |
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Power Supply | Off | NA* | Off | Off |
| Off | On | Yes | Replace Power |
voltage out of |
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| Supply/Fan |
range |
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Power Supply | Off | NA* | Off | Off |
| On | On | Yes | Fix cause of |
overheat |
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| overheat, else |
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| replace faulty Power |
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| Supply |
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Fan Failure | Off | NA* | Off | Off |
| On | Off | Yes | Replace Power |
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| Supply/Fan |
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Chassis | On | NA* | On | On |
| Off | On | Yes | Fix cause of |
Overheat |
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| overheat, else |
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| power down |
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| immediately |
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Shaded text in table denotes abnormal indications.
* The state of the Power Supply Fail LED is not applicable in a system with one Power Supply.
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| Installer’s/User’s Manual |