Preparing the 9040-MR9 system to install memory modules

To prepare the system to install memory modules, complete the steps in this procedure.

Before you begin

Record the plugging order of the memory module slots for the installation.

This information describes the rules for memory modules in the system.
  • The system supports DDR4 memory modules of 8 GB, 16 GB, 32 GB, 64 GB, and 128 GB.
  • The system has eight memory riser cards.
  • Each memory riser card must have 8 DIMMs.
  • Each system processor must have one memory riser card.
  • Unused memory module connectors must have a memory module filler.
  • Unused memory riser positions must have a memory riser filler.
  • A memory riser card can have up to 16 DIMMs.
  • Each system processor can have two memory riser cards.
  • All memory modules must be of the same size and type on each memory riser.
  • The memory module connector colors are black and white. The first eight memory modules must be installed in the white-colored DIMM connectors.
  • If the memory riser cards for the processors have different capacities, populate the largest memory riser card with system processor CP0.
  • Consider the following requirements when you add memory riser cards:
    • After all of the first memory riser cards for the system processors are filled up, add a second memory riser card to system processor CP0. The second memory riser card of each system processor can have different memory module capacities from the memory module capacity of the first memory riser card. It is recommended that the memory modules of the second memory riser card have the same type and size as the first memory riser card.
    • Add a second memory riser card to system processor CP1, then to system processor CP2, and finally to system processor CP3.

Procedure

  1. Identify the part and the system that you are working on. For instructions, see Identifying a part.
    Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number of the system matches the serial number to be serviced.
  2. Stop the system. For instructions, see Stopping a system.
  3. Label and disconnect all external cables that are attached to the PCIe adapters.
  4. Label and disconnect the power source from the system by unplugging the power cords from the system.
    Notes:
    • This system might be equipped with two or more power supplies. If the removing and replacing procedures require the system power to be turned off, ensure that all power sources to the system are disconnected.
    • The power cord (B) is fastened to the system with a hook-and-loop fastener (A). If you are placing the system in a service position after you disconnect the power cords, ensure that you unstrap the fastener.
    Figure 1. Removing the power cords
    Removing the power cords
    (L003)
    L003 label image
    or
    L003 label image
    or
    L003 label image
    or
    L003 label image
    or
    L003 label image
    L003 label image
    L003 label image
    DANGER
    Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003)
  5. Complete the following steps to place the system in the service position.
    Do not pull out or install any drawer or feature if the rack stabilizer brackets are not attached to the rack. Do not pull out more than one drawer at a time. The rack might become unstable if you pull out more than one drawer at a time.
    Pull out one drawer at a time
    1. If not already removed, remove the shipping screws (A) as shown in the following figure by using a Phillips screwdriver.
    2. Release the side latches (B) by pressing them downward as shown in the following figure.
    3. Pull out the system (C) as shown in the following figure. Ensure that any cables do not catch or bind as you pull out the system.
    Figure 2. Placing the system in service position
    Placing the system in service position
  6. Attach the electrostatic discharge (ESD) wrist strap.
    The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is completed, and if applicable, until the service access cover is replaced.
    Attention:
    • Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware.
    • When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is used for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
    • If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds. If at any point in this service process you move away from the system, it is important to again discharge yourself by touching an unpainted metal surface for at least 5 seconds before you continue with the service process.
  7. Remove the service access cover.
    Attention: Operating the system without the service access cover on for more than 10 minutes when the system power is turned on might damage the system components.
    1. Push the release latches (A) in the direction shown in the following figure.
    2. Slide the cover (B) off the system unit as shown in the following figure. When the front of the service access cover has cleared the upper frame ledge, lift the cover up and off the system unit.
    Figure 3. Removing the service access cover
    Removing the service access cover.
  8. Remove the memory riser.
    1. Open the release latches (A) on the memory riser as shown in the following figure.
      Open the latches to the fully upright 90 degree position.
    2. Pull out the memory riser from the slot by holding onto the latches.
      Figure 4. Removing a memory riser
      Removing a memory riser