Chapter 5. Resolving Installation Issues - Lenovo ThinkSystem SR950 Setup Manual

Chapter 5. Resolving installation issues

Use this information to resolve issues that you might have when setting up your system.
Use the information in this section to diagnose and resolve problems that you might encounter during the
initial installation and setup of your server.
• "Server does not power on (no indication that input power is connected to the server)" on page 273
• "The power button does not work (server does not start)" on page 273
• "The server immediately displays the POST Event Viewer when it is turned on" on page 274
• "Embedded hypervisor is not in the boot list" on page 274
• "Server cannot recognize a hard drive" on page 274
• "Displayed system memory less than installed physical memory" on page 275
• "A Lenovo optional device that was just installed does not work" on page 276
• "Voltage planar fault is displayed in the event log" on page 276
Server does not power on (no indication that input power is connected to the server)
Complete the following steps until the problem is resolved:
1. Check the power LED on the front operator panel.
2. Check the power supply LEDs.
3. Check the front operator panel LCD display for error indications.
4. Check the event log for any events related to the server not powering on.
5. Check for any LEDs that are flashing amber.
6. Disconnect and reconnect the input power cords.
7. Make sure that the power cords are connected to a working electrical outlet that is providing the
necessary levels of input power (see the power supply labels for input power requirements).
8. Reseat the power supplies.
9. Replace the power supplies.
The power button does not work (server does not start)
Note: The power button will not function until approximately 10 to 20 seconds after the server has been
connected to ac power.
Check the following items to help resolve the problem:
• Verify that input power is applied to the server and that the power supplies are functioning. See "Server
does not power on (no indication that input power is connected to the server)" on page 273.
• Make sure that the minimum number of DIMMs are installed and functional for your processor
configuration.
• If you just installed an optional device, remove it, and restart the server. If the server starts, you might have
installed more devices than the power supply supports.
• Make sure that the power button on the server is working correctly:
Reseat the operator information panel cable. If the problem remains, replace the operator information
panel.
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