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Dell EMC PowerEdge R740 Installation and Service Manual

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Installing a memory module

The procedure for installing a DIMM module and an NVDIMM-N module is identical.

Prerequisites

Follow the safety guidelines listed in Safety instructions.
CAUTION:Ensure that you install the NVDIMM-N battery if you are using NVDIMM-N.
CAUTION:To prevent data loss and potential damage to your system, ensure that your system, LEDs on system, LEDs on NVDIMM-N and LEDs on NVDIMM-N battery are turned off before installing the NVDIMM-N battery.

Steps

  1. Locate the appropriate memory module socket.
    CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of the memory module or metallic contacts.
    CAUTION: To prevent damage to the memory module or the memory module socket during installation, do not bend or flex the memory module. You must insert both ends of the memory module simultaneously.
  2. Open the ejectors on the memory module socket outward to allow the memory module to be inserted into the socket.
  3. Align the edge connector of the memory module with the alignment key of the memory module socket, and insert the memory module in the socket.
    CAUTION:Do not apply pressure at the center of the memory module; apply pressure at both ends of the memory module evenly.
    NOTE:The memory module socket has an alignment key that enables you to install the memory module in the socket in only one orientation.
  4. Press the memory module with your thumbs until the socket levers firmly click into place.

Next steps

  1. Install the air shroud
  2. Follow the procedure listed in After working inside your system.
  3. To verify if the memory module has been installed properly, press F2 and navigate to System Setup Main Menu > System BIOS > Memory Settings. In the Memory Settings screen, the System Memory Size must reflect the updated capacity of the installed memory.
  4. If the value is incorrect, one or more of the memory modules may not be installed properly. Ensure that the memory module is firmly seated in the memory module socket.
  5. Run the system memory test in system diagnostics.

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