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HP Color LaserJet Enterprise M751, M856, Managed E75245, E85055, MFP M776 - Removal and replacement: SODIMM (M751/E75245/M856/E85055/M776)

Learn how to remove and replace the SODIMM.

Mean time to repair: 10 minutes

Service level: CSR A

Before performing service

Turn the printer power off

  • Disconnect the power cable.

    Warning:

    To avoid damage to the printer, turn the printer off, wait 30 seconds, and then remove the power cord before attempting to service the printer.

Use the table below to identify the correct part number for your printer. To order the part, go to www.hp.com/buy/parts.

Part information

Part number

Part description

E5K48-67902

5851-6581

HP 1GB DDR3 x32 144-pin 800MHz SODIMM

HP 2GB DDR3 x32 144-pin 800MHz SODIMM

Required tools

  • No special tools are required to remove or install this assembly.

After performing service

Turn the printer power on

  • Connect the power cable.

  • Use the power switch to turn the power on.

Post service test

Make sure that the printer initializes to a Ready state.

Print a page to make sure that the printer is functioning correctly.

Print a configuration page and verify that the memory section shows 1.5 GB.

Remove the formatter cover

Follow these steps to remove the formatter cover.

  1. Loosen one thumbscrew (callout 1), and then slide the formatter cover (callout 2) away from the printer to remove it.

    Remove the formatter cover

    Remove the formatter cover

Remove the SODIMM

Follow these steps to remove the SODIMM.

  1. Locate the SODIMM on the formatter board.

    Locate the SODIMM

    Locate the SODIMM
  2. Release two locking arms (callout 1), and then allow the lower edge of the SODIMM to pivot slightly upwards to free it from the holder (callout 2).

    i

    Release two locking arms

    Release two locking arms
  3. Pull the SODIMM down and away from the holder to remove it.

    Remove the SODIMM

    Remove the SODIMM

Unpack the replacement assembly

Follow these steps to unpack the replacement assembly.

  1. Dispose of the defective part.

    Note:

    HP recommends responsible disposal of the defective part.

    http://www8.hp.com/us/en/hp-information/environment/product-recycling.html

  2. Unpack the replacement part from the packaging.

    CAUTION:

    Some parts are sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation or mat. If an ESD workstation or mat is not available, touch the sheet-metal chassis to provide a static ground before touching an ESD-sensitive assembly. Protect the ESD-sensitive assemblies by placing them in ESD pouches when they are out of the printer.

    Important:

    Make sure that all of the shipping materials (for example shipping tape) are removed from the replacement part prior to installation.

    Note:

    If the replacement part is a roller or pad, avoid touching the spongy part of it. Skin oils on the roller or pad can cause paper pickup and/or print-quality problems. HP recommends using disposable gloves when handling rollers or pads or washing your hands before touching rollers or pads.

  3. To install an assembly, reverse the removal steps.

    Note:

    When applicable, special installation instructions are provided for an assembly at the end of the removal procedure. Always completely read the removal instructions and follow all special installation instructions.

Install the SODIMM

Follow these steps to install the SODIMM.

  1. Insert the top edge of the SODIMM in the holder.

    Tip:

    The SODIMM is keyed and can only be inserted in the holder one way.

    Insert the SODIMM

    Insert the SODIMM
  2. Pivot the bottom edge of the SODIMM toward the holder (callout 1), and then make sure that the two locking arms snap into place (callout 2).

    Install the DIMM

    Install the DIMM

Install the formatter cover

Follow these steps to install the formatter cover.

  1. Position the formatter cover (callout 1) on the printer, slide it toward the printer to install it, and then tighten one thumbscrew (callout 2).

    Install the formatter cover

    Install the formatter cover

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