Oracle^® Exadata Storage Server X5-2 Extreme Flash Service Manual

Identify and Remove a Faulty DIMM

1. Prepare the storage server for service.
   1. Power off the storage server, and disconnect the power cords from the storage server power supplies.

      See Powering Down the Storage Server.

   2. Extend the storage server into the maintenance position.

      See Extend the Storage Server to the Maintenance Position.

   3. Attach an antistatic wrist strap to your wrist and then to a metal area on the chassis.

      See Electrostatic Discharge Safety.

   4. Remove the storage server top cover.

      See Remove the Storage Server Top Cover.

   5. Swivel the air baffle into the upright position to allow access to DIMMs.
2. Identify and note the location of the faulty DDR4 DIMM by pressing the Fault Remind button on the motherboard I/O card.

   See Using the Storage Server Fault Remind Button.

   Faulty DIMMs are identified with a corresponding amber LED on the motherboard.

   • If the DIMM fault LED is off, then the DIMM is operating properly.

   • If the DIMM fault LED is on (amber), then the DIMM is faulty and should be replaced [1].

   
   
3. To remove the faulty DIMM, do the following:
   1. Rotate both DIMM socket ejectors outward as far as they will go.

      The DIMM is partially ejected from the socket.

      
      
   2. Carefully lift the DIMM straight up to remove it from the socket.
4. Replace each faulty DIMM with another DIMM of the same rank size (8-GB, single-rank).

   For DIMM replacement instructions, see Install a DIMM.

Related Information

• DIMM and Processor Physical Layout

• DIMM Population Rules

• Install a DIMM