Lenovo ThinkServer TD200x Hardware Maintenance Manual for TD200x - Page 56

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. • See Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). • If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Sensor DIMM n Temp has transitioned Error to critical from a less severe state.(n = DIMM number) A sensor has changed to Critical state from a less severe state. 1. Make sure that the fans are operating, that there are no obstructions to the airflow, that the air baffles are in place and correctly installed, and that the server cover is installed and completely closed. 2. If a fan has failed, complete the action for a fan failure. 3. Replace DIMM n. (n = DIMM number) A PCI PERR has occurred Error on system %1.(%1 = CIM_ComputerSystem.ElementName) A PCI PERR has occurred.(Sensor = PCI Slot n; n = PCI slot number) 1. Check the extender-card LEDs. 2. Reseat the affected adapters and extender card. 3. Update the server and adapter firmware (UEFI and IMM). Important: Some cluster solutions require specific code levels or coordinated code updates. If the device is part of a cluster solution, verify that the latest level of code is supported for the cluster solution before you update the code. 4. Remove the adapter from slot n. 5. Replace the PCIe adapter. 6. Replace extender card n. (n = PCI slot number) 48 ThinkServer TD200x Hardware Maintenance Manual