How to Upgrade an IBM Thinkpad T43

Written by gina rodrigues
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How to Upgrade an IBM Thinkpad T43
Use caution when upgrading your ThinkPad's memory and hard drive at home. (laptop image by Du...¡an Zidar from

Gain smoother computer processing and increased disk drive space by upgrading your IBM ThinkPad T43. The memory module slot and hard disk drive are both accessible from the ThinkPad's exterior cover. Completing a system upgrade is not difficult, but requires careful handling of your laptop and its parts.

Skill level:

Things you need

  • Phillips screwdriver
  • SO-DIMM memory
  • 2.5mm Allen wrench
  • Hard disk drive

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  1. 1

    Shut down your ThinkPad. Disconnect the power adaptor and external cables attached to the unit.

  2. 2

    Close your laptop and invert the unit so that the bottom is visible. Place the computer on a flat, sturdy surface.

  3. 3

    Slide the battery lock to an unlock position. Remove the battery pack by sliding the battery away from the computer.

  4. 4

    Loosen the screw to the memory slot panel. The memory cover is rectangular in shape and located just below the battery.

  5. 5

    If a memory module is installed in the slot, remove it by pressing outward on the latches located on either side of the module. Simultaneously slide the module out of the memory slot.

  6. 6

    Insert the upgrade SO-DIMM into the memory slot at a 20-degree angle. Pivot the SO-DIMM downward. The module will snap into place.

  7. 7

    Replace the memory cover and battery pack. Turn on the computer to confirm that the memory installation is successful.

  1. 1

    Shut down your ThinkPad by clicking "Start" > "Shut Down" from the Windows desktop. Disconnect the power adaptor and any external cables.

  2. 2

    Remove the battery by sliding the battery latch into an unlock position. Grip the battery pack and slide it away from the computer.

  3. 3

    Unscrew the hard disk cover using the Allen wrench. The hard disk cover is located on the right side of the ThinkPad, but the screw holding it in place is on the bottom of the unit.

  4. 4

    Slide the hard disk drive out of the computer. Unscrew the disk connector from the hard disk drive.

  5. 5

    Screw the disk connector to the new disk drive upgrade. Ensure that the connector is firmly attached before placing the upgrade into the ThinkPad slot. Replace the security screw on the laptop cover.

Tips and warnings

  • Create a backup file of your hard drive data before upgrading your ThinkPad.
  • Avoid touching the contact edge in the memory slot, or risk damaging the SO-DIMM.
  • Do not drop the hard disk, or risk damaging the unit and its contents.

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