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Lenovo ThinkSystem SR665 V3 User Manual
Also see for 7D9A: System configuration guideUser guide
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• Each adapter.• Hard disk drives.• Memory modules until you reach the minimal configuration for debugging that is supported for theserver.To determine the minimal configuration for your server, see “Minimal configuration for debugging” in“Technical specifications” on page 3.4. Power on the server.If the problem is solved when you remove an adapter from the server, but the problem recurs when youinstall the same adapter again, suspect the adapter. If the problem recurs when you replace the adapter witha different one, try a different PCIe slot.If the problem appears to be a networking problem and the server passes all system tests, suspect a networkcabling problem that is external to the server.Resolving suspected power problemsPower problems can be difficult to solve. For example, a short circuit can exist anywhere on any of the powerdistribution buses. Usually, a short circuit will cause the power subsystem to shut down because of anovercurrent condition.Complete the following steps to diagnose and resolve a suspected power problem.Step 1. Check the event log and resolve any errors related to the power.Note: Start with the event log of the application that is managing the server. For more informationabout event logs, see “Event logs” on page 475.Step 2. Check for short circuits, for example, if a loose screw is causing a short circuit on a circuit board.Step 3. Remove the adapters and disconnect the cables and power cords to all internal and externaldevices until the server is at the minimal configuration for debugging that is required for the serverto start. To determine the minimal configuration for your server, see “Minimal configuration fordebugging” in “Technical specifications” on page 3.Step 4. Reconnect all AC power cords and turn on the server. If the server starts successfully, reseat theadapters and devices one at a time until the problem is isolated.If the server does not start from the minimal configuration, replace the components in the minimalconfiguration one at a time until the problem is isolated.Resolving suspected Ethernet controller problemsThe method that you use to test the Ethernet controller depends on which operating system you are using.See the operating-system documentation for information about Ethernet controllers, and see the Ethernetcontroller device-driver README file.Complete the following steps to attempt to resolve suspected problems with the Ethernet controller.Step 1. Make sure that the correct device drivers are installed and that they are at the latest level.Step 2. Make sure that the Ethernet cable is installed correctly.• The cable must be securely attached at all connections. If the cable is attached but the problemremains, try a different cable.• Make sure that the cable used is supported by the adapter. For more information about thesupported adapters, cables, and transceivers of the specific servers, go to https://serverproven.lenovo.com/thinksystem/index.Chapter 8. Problem determination 497 |
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