Lenovo ThinkServer TD200x Hardware Maintenance Manual for TD200x - Page 85

The following illustration shows the LEDs on the PCI-X extender card, if one is installed. The following table describes the LEDs on the system board and extender card and suggested actions to correct the detected problems. • Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. • See Chapter 8 "Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823" on page 221 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. Lit EasyLED diagnostics LED with the system-error or information LED also lit Description Action DIMM 1 to DIMM 16 error LEDs A DIMM has failed or is incorrectly installed. a. Remove the DIMM that is indicated by a lit error LED. b. Reseat the DIMM. c. Replace the following components one at a time, in the order shown, restarting the server each time: 1) DIMM 2) (Trained service technician only) System board CPU 1 error LED Microprocessor 1 has failed, is missing, or has been incorrectly installed. Note: (Trained service technician only) Make sure that the microprocessors are installed in the correct sequence; see "Installing a microprocessor and heat sink" on page 208. a. Check the system-event log to determine the reason for the lit LED. b. (Trained service technician) Reseat the failing microprocessor. c. Replace the following components one at a time, in the order shown, restarting the server each time: 1) (Trained service technician only) Failing microprocessor 2) (Trained service technician only) System board Chapter 5. Diagnostics 77