Install a memory module

Follow instructions in this section to install a memory module.

S002

CAUTION

The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

About this task

See Memory module installation rules and order for detailed information about memory configuration and setup.

Attention

• Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

• Make sure to remove or install memory module 20 seconds after disconnecting power cords from the system. It allows the system to be completely discharged of electricity and safe for handling memory module.

• Make sure to adopt one of the supported configurations listed in Memory module installation rules and order.

• Memory modules are sensitive to static discharge and require special handling. Refer to the standard guidelines at Handling static-sensitive devices:

  • Always wear an electrostatic-discharge strap when removing or installing memory modules. Electrostatic-discharge gloves can also be used.

  • Never hold two or more memory modules together so that they do not touch each other. Do not stack memory modules directly on top of each other during storage.

  • Never touch the gold memory module connector contacts or allow these contacts to touch the outside of the memory module connector housing.

  • Handle memory modules with care: never bend, twist, or drop a memory module.

  • Do not use any metal tools (such as jigs or clamps) to handle the memory modules, because the rigid metals may damage the memory modules.

  • Do not insert memory modules while holding packages or passive components, which can cause package cracks or detachment of passive components by the high insertion force.

Important

• Mixing x4/x8, 16Gbit (16GB, 32GB, 64GB)/24Gbit (48GB, 96GB) DIMMs are not allowed in a system.

• Before installing 24 Gb DRAM RDIMMs, make sure to update the UEFI firmware to the latest version first, then remove all existing 16 Gb DRAM RDIMMs.

Firmware and driver download: You might need to update the firmware or driver after replacing a component.

• Go to Drivers and Software download website for ThinkEdge SE455 V3 to see the latest firmware and driver updates for your server.

• Go to Update the firmware for more information on firmware updating tools.

Procedure

1. Make preparation for this task.
   1. Remove the top cover. See Remove the top cover.
   2. Remove all the PCIe assemblies. If the configuration comes with PCIe riser 2 and internal drives, remove all the internal drives, and lift the internal drive backplane before removing PCIe riser 2. See Remove the PCIe riser assembly.
   3. Remove the processor air baffle. See Remove the processor air baffle.
2. Touch the static-protective package that contains the memory module to any unpainted surface on the outside of the server. Then, take the memory module out of the package and place it on a static-protective surface.
3. Locate the required memory module slot on the system board.
   Note

   Ensure that you observe the installation rules and sequence order in Memory module installation rules and order.

   Figure 1. Memory modules and processor layout
   
   
4. Install the memory module into the slot.
   1. Make sure the retaining clips are in the fully-open position.
   2. Align the memory module with the slot, and gently place the memory module on the slot with both hands.
   3. Firmly press both ends of the memory module straight down into the slot until the retaining clips snap into the locked position.
   Attention

   • To avoid breaking the retaining clips or damaging the memory module slots, open and close the clips gently.

   • If there is a gap between the memory module and the retaining clips, the memory module has not been correctly inserted. In this case, open the retaining clips, remove the memory module, and then reinsert it.

   Figure 2. Installing a memory module