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Install a DIMM cooling bar

Use this information to install a DIMM cooling bar. The DIMM cooling bars are required for dual-side cooling memory modules.

About this task

Required tools

  • Screwdriver for T10 screws

  • Storage Gap Pad Kit (SC750 V4) and Storage Gap Pad Kit (SC750 V4) , if E3.S front drive is installed.

  • CX7 Gap Pad (SC750 V4) , if ConnectX-7 NDR 200 adapter is installed.

  • CX7 Conduction Plate , if ConnectX-7 NDR 400 adapter is installed.

Attention

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

  • Turn off the corresponding DWC tray that you are going to perform the task on.

  • Disconnect all external cables from the enclosure.

  • Use extra force to disconnect QSFP cables if they are connected to the solution.

Watch the procedure
  • A video of this procedure is available at YouTube.

Procedure

Note
If the system was installed with single-side cooling memory modules. Remove all the DIMM covers from the water loop; then, remove the cross bars, see Remove the cross braces.
Figure 1. Removing DIMM cover
DIMM cover removal

Install the DIMM cooling bars.
  1. Install the DIMM cooling bar into the water loop.
  2. Install two T10 screws to secure the DIMM cooling bar to the water loop.
    Attention
    Make sure eight cooling bars are installed in each node. A total of sixteen cooling bars should be installed in the tray.


After you finish

  1. Install the PCIe adapter riser cage. See Install a ConnectX-7 NDR 200 adapter riser assembly or Install a ConnectX-7 NDR 400 adapter riser assembly.

  2. Install the front E3.S drive cage. See Install an E3.S front drive cage assembly.

  3. Install the cross braces. See Install the cross braces.

  4. Install the memory modules that require dual-side cooling. See Install a memory module (dual-side cooling).

  5. Install the DIMM comb. See Install a DIMM comb.

  6. Install the tray cover. See Install the tray cover.

  7. Install the tray into the enclosure. See Install a tray in the enclosure.

  8. Connect all required external cables to the solution.
    Note
    Use extra force to connect QSFP cables to the solution.
  9. Check the power LED on each node to make sure it changes from fast blink to slow blink to indicate all nodes are ready to be powered on.
    Note

    Shared I/O configuration requires specific nodes power-on sequence. When powering on the system, power on Node B first; then, power on Node A. For more information, see PCIe adapter cable routing.