Identify the Failing DIMM
If you are removing the DIMMs because of a system failure, look at the LEDs (A) located on top of the system processor assemblies to identify the location of the failing DIMMs. To illuminate the location LED for the failing DIMM, press the LED actuator button (B).
ATTENTION: The actuator button must be used within 20 minutes after the system backplane assembly is removed from the system. The assembly retains the energy to light the LEDs for 40 seconds after the actuator button has been pressed.
When you have completed these steps, click Next to continue.