MLS400

Preparing the Appliance

Before you start to install or remove DIMMs, make sure:

  • You shut down the appliance and unplug the power cables.

  • The appliance is in a clean environment and on a level surface.

  • You can physically access and open the cover of the appliance.

  • You have the Check Point Memory Kit.

Important

  • To protect the appliance and the memory modules from electrostatic discharge, make sure that you are properly grounded before you touch these components.

  • We recommend that you use the grounding wrist strap that is included in the memory kit. The grounding plug on the rear of the appliance provides a chassis grounding point.

  • For more information, read the Health and Safety Information in the Getting Started Guide:

Quantum LightSpeed Appliances Getting Started Guide

Memory Kit contents

  • QR code page - Installing and Removing Memory in Check Point Appliances

  • Memory DIMMs

  • ESD grounding strap (anti-static)

To prepare the appliance:

  1. Shut down the appliance by one of these methods: from the Gaia Portal, through CLI commands, or quickly press and release the power switch.

    Note - We do not recommend the use of the power switch as it results in a forced and immediate shut down.

  2. Remove the power cords from the appliance.

  3. Place the ESD strap on your wrist and attach the other end to a grounding point.

  4. Loosen the appliance cover screws.

  5. Remove the top cover from the appliance.

To remove the top cover:

  1. Unscrew the cover screws (item 2 in the next figures).

  2. Pull the top cover back in the direction of the arrows.

  3. Pull the cover up to remove it fully.

Legend

Item

Description

1

Appliance cover

2

Appliance cover screws

3

ESD grounding point

About DIMM Sockets

The memory sockets are colored black and blue.

  • The view shown is always from the top.

  • The front panel of the appliance is always at the bottom of the diagram.

    Item

    Description

    Memory socket with DIMM installed

    Memory socket without DIMM installed

MLS400 DIMM Configuration

The MLS400 appliance has a memory configuration of 192GB: 12 x 16GB.

All memory slots are populated with DIMMs.

If necessary, you can remove a faulty DIMM and replace it with a new one.

Removing DIMMs

Important - The appliance contains sharp metal parts such as the heat sink fin and bracket. Handle with care to avoid injury or damage the DIMMs.

Make sure that you prepare the appliance before you remove DIMMs. For more information, see Preparing the Appliance.

To remove DIMMs from the appliance:

  1. Remove the power cords from the appliance.

  2. Place the ESD strap on your wrist and attach the other end to a grounding point.

  3. Press the two retaining clips outward.

  4. Carefully pull up the DIMM.

    Important - Only touch the rear corners of the DIMM. Pressing on the heat sink or other DIMM components can damage the hardware.

    If necessary, first pull up one end of the DIMM, and then the other to gradually release the DIMM from the contact pins.

    Important - Make sure that there are no leftover or loose parts inside the appliance.

  5. If you do not need to install any DIMMs:

    1. Replace the appliance cover without tightening the appliance cover screws.

    2. Connect the power cords to the appliance.

      The appliance turns on.

    3. Tighten the appliance cover screws to secure the cover on the appliance.

Installing DIMMs

Important - The appliance contains sharp metal parts such as the heat sink fin and bracket. Handle with care to avoid injury or damage the DIMMs

To install DIMMs in the appliance:

  1. Find the DIMM slots on the system board.

  2. Press outward on the two white retaining clips.

  3. Align the new DIMM above the socket.

    The top of the DIMM is smooth. The bottom edge has two different-length sets of contacts which connect to the slots on the socket.

    Important:

    • Only touch the top corners of the DIMM. Pressing on the heat sink or other DIMM components can damage the hardware.

    • DIMMs are not symmetrical. Use the hole in the DIMM to guide the DIMM into the raised tooth in the slot.

  4. Press the new DIMM into the socket until it clicks into position.

    The retaining clips move into the lock position as you press the DIMM into position.

  5. Do steps 1 - 4 again for the other DIMMs.

  6. Make sure that there are no leftover or loose parts in the appliance.

  7. Make sure the DIMM(s) are installed correctly.

  8. Replace the appliance cover without tightening the appliance cover screws.

  9. Connect the power cords to the appliance.

    The appliance turns on.

  10. Place and tighten the appliance cover screws to secure the cover on the appliance.

Verifying the Memory Configuration

To verify memory configuration in the Expert mode:

Run:

free -wht

Example output from an MLS400 appliance with 192GB of memory:

Note - The amount of installed memory appears in the Mem row in the total column.
Due to the available memory address space, the total installed memory that appears in this output is close to, but not the same as the actual installed memory.

To see the number of populated DIMM slots in Gaia Clish:

  1. Run:

    show asset memory

    Example output from an MLS400 appliance with 192GB of memory:

  2. Make sure the value in the Total Memory shows the installed memory.

Note - The “Memory Slot Number” is an ordinal count of DIMMs and does not correspond to the slot numbering shown in the motherboard DIMM configuration layout diagram.