Power On And Power Off Problems - Lenovo ThinkSystem SD550 V3 User Manual

4. Reseat the failing device.
5. Replace the failing device.

Power on and power off problems

Use this information to resolve issues when powering on or powering off the server.
• "Embedded hypervisor is not in the boot list" on page 273
• "Server does not power on" on page 273
• "Server does not power off" on page 274
Embedded hypervisor is not in the boot list
Complete the following steps until the problem is resolved:
1. Make sure that the optional embedded hypervisor flash device is selected on the boot manager
at startup.
Select Boot Device
2. Make sure that the embedded hypervisor flash device is seated in the connector correctly (see
5 "Hardware replacement procedures" on page
3. See the documentation that comes with the optional embedded hypervisor flash device to validate that
the device is configured correctly.
4. Make sure that other software works on the server.
Server does not power on
Complete the following steps until the problem is resolved:
Note: The power button will not function until approximately five to ten seconds after the server has been
connected to power to allow the BMC to complete initialization.
1. Make sure that the power button is working correctly:
a. Disconnect the server power cords.
b. Reconnect the power cords.
c. (Trained technician only) Reseat the front operator panel cable, and then repeat steps 1a and 1b.
• (Trained technician only) If the server starts, reseat the front operator panel. If the problem
remains, replace the front operator panel.
• If the server does not start, bypass the power button by using the force power-on jumper. If the
server starts, reseat the front operator panel. If the problem remains, replace the front operator
panel.
2. Make sure that the reset button is working correctly:
a. Disconnect the server power cords.
b. Reconnect the power cords.
c. (Trained technician only) Reseat the front operator panel cable, and then repeat steps 2a and 2b.
• (Trained technician only) If the server starts, replace the front operator panel.
• If the server does not start, go to step 3.
3. Make sure that both power supplies installed in the server are of the same type. Mixing different power
supplies in the server will cause a system error (the system-error LED on the front operator panel turns
on).
4. Make sure that:
• The power cords are correctly connected to the server and to a working electrical outlet.
• The type of memory that is installed is correct and the installation rules are met.
43).
Chapter 8
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Problem determination
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