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Lenovo ThinkPad T490 Motherboard Replacement

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  1. Lenovo ThinkPad T490 Motherboard Replacement, Base Plate: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Loosen the screws from the base plate.

    • Using a Philips #1 screwdriver fully loosen the six screws on the back cover.

    • These screws are captive - they will not fully come out after being unscrewed.

  2. Lenovo ThinkPad T490 Motherboard Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Once the screws have been loosened, start to remove the base plate.

    • Insert the iFixit opening tool into the space between the base plate and the chassis.

    • Glide the tool along the perimeter of the case in order to release the clips holding the case and chassis together.

  3. Lenovo ThinkPad T490 Motherboard Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Fully remove the base .

    • Grab the edge of the cover and lift the cover away from you.

    • There may be additional clips holding the cover in place. These remaining clips will release easily as you remove the cover.

  4. Lenovo ThinkPad T490 Motherboard Replacement, Motherboard: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Disconnect the CMOS battery connector.

  5. Lenovo ThinkPad T490 Motherboard Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Lenovo ThinkPad T490 Motherboard Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Lenovo ThinkPad T490 Motherboard Replacement: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Flip up the black locking flaps that secure each of the two ribbon cables.

    • Disconnect both of the ribbon cables.

  6. Lenovo ThinkPad T490 Motherboard Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Lift the motherboard up and out of the chassis using your hands.

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To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.

David Saka

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University of North Texas, Team 3-4, Coppersmith Fall 2024 crwdns2935289:0University of North Texas, Team 3-4, Coppersmith Fall 2024crwdne2935289:0

UNT-COPPERSMITH-F24S3G4

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