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Dell EMC PowerEdge R940xa Installation and Service Manual

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Installing the memory module

Prerequisites

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.
CAUTION To ensure proper system cooling, memory module blanks must be installed in any memory socket that is not occupied. Remove memory module blanks only if you intend to install memory modules in those sockets.
CAUTION To ensure proper system cooling in configurations with mid drive tray, memory module blanks must be installed in any memory socket that is not occupied. Remove memory module blanks only if you intend to install memory modules in those sockets.
NOTE You must follow the thermal restriction while using DIMM blank. For information about thermal restriction, see Thermal Restrictions topic in the PowerEdgeR940xa Technical Specifications on the product documentation page.
  1. Follow the safety guidelines listed in Safety instructions.
  2. Follow the procedure listed in Before working inside your system.
    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 removing the NVDIMM-N battery.
  3. Remove the support bar.
  4. Remove the air shrouds.

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.
    Figure 1. Installing the memory module
    This image shows installing a memory module

Next steps

  1. Replace the air shrouds.
  2. Replace the support bar.
  3. Follow the procedure listed in After working inside your system.
  4. 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.
  5. 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.
  6. Run the system memory test in system diagnostics.

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