How to Identify Faulty DIMMs

Before You Begin

For information about using the DIMM test circuit, see Using the DIMM and CPU On-Board Test Circuitry.

1. Prepare the server module for service. See Preparing the Server for Service.
2. Press and hold the Fault Remind button on the motherboard to identify a faulty DIMM.

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   Note - Do not hold the Fault Remind button down longer than necessary. Release the button when the Fault LED lights.

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3. Note the location of the faulty DIMMs on the motherboard.

   A lit LED next to a DIMM slot indicates a faulty DIMM.

   
   

   LED DIMM Status Off Operating properly. On (amber) Faulty and should be replaced.

Next Steps

How to Remove DIMMs

See Also

• DIMM Slot Designations and Population Order

• DIMM Population Rules and Guidelines for the Sun Blade X6275 M2 Server module