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HP Compaq nc6400 Notebook PC - Removing and Replacing the Expansion Memory Board

Introduction
This document is provided to assist in removing and replacing the Expansion Memory Board for the HP Compaq nc6400 Notebook PC.
Minimum skill level
The End-User should possess product-specific knowledge and technical skill on how to service the system, and have familiarity with the operating system.
Tools required
  • Small, Phillips-head (P0 and P1) screwdrivers
  • Small, flat-bladed screwdriver or a flat-bladed alignment tool
Parts required
  note:
Part numbers are subject to change.
The replacement part number will vary depending on the Expansion Memory Board that is being replaced. If a part is listed as "Yes" under "Requires Return" then the defective part needs to be returned to HP. Click here for more information on returning parts to HP.
Description
Part Number
Requires Return
Memory SODIMM 256MB DDR2-4200
373119-001
Yes
Memory SODIMM 512MB, DDR2-4200
373120-001
Yes
Memory SODIMM 1GB, DDR2-4200
373121-001
Yes
Memory SODIMM DDR2-5300, 512MB
406726-001
Yes
Memory SODIMM DDR2-5300, 1.0GB
406727-001
Yes
Memory SODIMM DDR2-5300, 2GB
406728-001
Yes
  note:
For customers in countries/regions with RoHS legislation* (e.g. EU, China, etc.) restricting the use of hazardous substances in electrical equipment. The use of the Original Spare part is regulated by RoHS legislation. If your unit contains a part that is labeled with the Modified Spare number, the Modified Spare must be ordered as the replacement part. If your unit contains a part that is labeled with the Original Spare number, please order the Original Spare as the replacement part. In this case either the Original Spare or the Modified Spare may be shipped which will not affect performance or functionality of the unit.
Summary of instructions
To view a video demonstrating the procedure for removing the Expansion Memory Board, click on the link below. Or use the product video listing on the HP Services Media Library, then select Expansion Memory Board from the menu on the upper left hand side of the screen.
Click here to view the Expansion Memory Board removal video (right-click on the link to open in a new window/tab).
Expansion Memory Board removal
  1. Review the safety considerations before performing the steps listed below by clicking on the following link:
      caution:
    Failure to comply with the precautions could result in damage to your product or loss of data.
  2. Loosen the captive P0 Phillips-head screw that secures the expansion memory cover to the bottom of the notebook.
  3. Use your finger or a flat-bladed tool to lift the edge of the expansion memory cover and remove it.
  4. Push both arms outward simultaneously to release the expansion memory board to the spring tension position.
      caution:
    When handling a memory board, use care to prevent touching the memory chips on the board. Touching the memory chips could damage or destroy the memory.
  5. Grasp the expansion memory board by the edges and pull gently to remove it.
  6. Place the expansion memory board in a static dissipative bag.
  7. Remove the expansion memory board from the static dissipative bag.
  8. Locate the alignment slot and align it to the empty board receptacle.
  9. Grasp the expansion memory board by the edges and push gently to replace it.
      caution:
    When handling a memory board, use care to prevent touching the memory chips on the board. Touching the memory chips could damage or destroy the memory.
  10. Press the expansion memory board down to latch the arms.
  11. Toe the expansion memory cover into the enclosure.
  12. Tighten the captive P0 Phillips-head screw.
Expansion Memory Board replacement
  1. Loosen the captive P0 Phillips-head screw that secures the expansion memory cover to the bottom of the notebook.
  2. Use your finger or a flat-bladed tool to lift the edge of the expansion memory cover and remove it.
  3. Remove the expansion memory board from the static dissipative bag.
  4. Locate the alignment slot and align it to the empty board receptacle.
  5. Grasp the expansion memory board by the edge and push gently to install it.
      caution:
    When handling a memory board, use care to prevent touching the memory chips on the board. Touching the memory chips could damage or destroy the memory.
  6. Press the expansion memory board down to latch the arms.
  7. Toe the expansion memory cover into the enclosure.
  8. Tighten the captive P0 Phillips-head screw.
Verifying successful repair
Power on the server and verify that the BIOS memory and processor messages are displayed on the monitor during the boot process.

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