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The power button does not work (server does not start)
Note: The power button will not function until approximately 1 to 3 minutes after the server has been
connected to ac power to allow time for BMC to initialize.
Complete the following steps until the problem is resolved:
1. Make sure that the power button on the server is working correctly:
a. Disconnect the server power cords.
b. Reconnect the server power cords.
c. Reseat the operator information panel cable, and then repeat steps 3a and 3b.
• If the server starts, reseat the operator information panel.
• If the problem remains, replace the operator information panel.
2. Make sure that:
• The power cords are correctly connected to the server and to a working electrical outlet.
• The LEDs on the power supply do not indicate a problem.
• The Power button LED is lit on and flash slowly.
• The push force is enough and with button force response.
3. If the power button LED didn't lit on or flash correctly, Please reseat all the power supplies and make
sure AC LED on PSU rear side are lit on.
4. If you have just installed an optional device, remove it, and restart the server.
5. If the issue is still observed or without power button LED lit on, implement the minimum configuration to
check whether any specific components lock the power permission. Replace the each power supply and
check the power button function after installing the each one.
6. If everything is still done and the issue cannot be resolved, please collect the failure information with
system logs captured to Lenovo support.
.
Chapter 5
Problem determination
407
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