Power Supply Problems
Table
Problem | Possible Causes | Possible Solutions | ||
Switch does not power up | ■ | Insufficient power supply to the Switch | ■ | If the Switch does not |
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| ATM Module is installed, you may require a different |
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| power supply. Refer to the Release Notes for |
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| information about IBM power supplies. |
| ■ | System is not receiving power | ■ | Check that the power supply is plugged into the |
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| device and power outlet. |
| ■ | Power supply malfunction | ■ | Check that the main power supply switch on the wall |
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| is set to the ON position. |
| ■ | Blown fuse | ■ | Check, and if necessary change, the fuse. Refer to |
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| the user guide that accompanies your Switch for |
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| details about changing fuses and safety instructions. |
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| ■ | Replace the power cable. |
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| ■ | Contact IBM Technical Support. |
Switch powers up but then | ■ | Insufficient power supply. | ■ | If the Switch |
shuts itself down after a |
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| Module was installed, there may be insufficient |
few minutes |
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| power available to power the Switch under heavy |
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| traffic conditions. Refer to the Release Notes. |
| ■ | Wiring closet is too hot | ■ | Check that the room temperature does not exceed |
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| 50°C (122°F), and that the Switch is positioned |
| ■ | Vents are blocked |
| correctly so that it has adequate ventilation. |
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| System fans are not operating |
| If the temperature exceeds the recommendations, |
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| lower the thermostat and wait for the room to reach | |
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| the correct temperature range. |
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| Restart the Switch. If the Switch turns itself off again, |
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| contact IBM Technical Support. |
Circuit breaker trips | ■ | External wiring problem | ■ | Turn the Switch off. |
| ■ | Power supply failure |
| Check with your local electricity supplier or company |
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| electrician that there is not an external electricity | ||
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problem.
If you suspect the problem is caused by an IBM device, contact IBM Technical Support.
