HP ProBook 640 G4 Motherboard Replacement

Escrito Por: Timothy Zibrida
  • Comentários: 0
HP ProBook 640 G4 Motherboard Replacement

Dificuldade

Moderate

Passos

11

Tempo necessário

30 minutes

Introdução

The HP Probook 640 G4 is a business class 14 inch laptop that is designed for durability. This guide will walk you through how to safely replace the motherboard. A failing motherboard can cause no power conditions, dead ports, or random freezes.

Before you start be sure to power the laptop off completely, unplug the AC adapter, and remove all external devices. Work on a clean flat surface. Make sure you have all of the right tools and parts available.

If the laptop shows no signs of life, won't charge despite a battery replacement, or has visible board corrosion then a motherboard replacement is often the fix.

  1. mogn5QUNtXUqhtUC
    mogn5QUNtXUqhtUC
    NX3TZpmxuHGX3MhQ

    • Loosen the eight 2.5 mm-long Phillips captive screws securing the lower case.

    • Captive screws cannot be fully removed.

  2. ZuLecvHnDmQuFSLT
    ZuLecvHnDmQuFSLT
    2JxggaeRexkpQVNw

    • Insert an opening pick into the seam between the lower case and chassis, and twist it to create a gap.

    • Insert an opening tool into the gap.

    • Use the opening tool to pry around the entire perimeter of the device until the lower case fully releases.

    • Remove the lower case.

  3. K23eAGftRRiULF6I
    K23eAGftRRiULF6I
    hQLD311VOR1Y5CpS
    2QHBGgk5KCynrVlB

    • Use a Phillips screwdriver to loosen the six 2.5 mm-long captive screws securing the battery.

    • Captive screws are not fully removable—they only loosen.

    • Slide and lift the battery out.

  4. JcsHUPm6HBdu2B1d
    JcsHUPm6HBdu2B1d
    2JYMFmLGVHWvN1SW
    5UUSq15oNNdTaZkQ

    • Loosen the four captive 2.5 mm-long Phillips screws securing the SSD.

    • Captive screws cannot be removed.

    • Grip the SSD and slide it out while lifting up.

  5. xDVchKgZQ5kDeTDZ
    xDVchKgZQ5kDeTDZ
    dyIbvXZrClPfBOhr
    JbEfFDTbniMrIA6S

    • Two clips secure each RAM module in place, one on each side. Using your fingers, spread the clips away from the RAM module.

    • Repeat for the other RAM module.

    • Remove each of the two RAM modules.

  6. IdyGLnnfDOJaUGYg
    IdyGLnnfDOJaUGYg
    QrY4Bq4CEJPJVabO
    fDPsPjpK3GH144qJ

    • Remove 5 2.5 mm Phillips head screws.

    • Remove 12 6 mm Torx head screws.

    • Remove 2 2.5 mm Phillips head screws.

    • Loosen 4 2.5 mm Phillips head screws.

    • The 4 2.5 mm Phillips head screws do not come out; only loosen and are built into the frame.

    • Loosen 4 2.5 mm Phillips head screws.

    • The 4 2.5 mm Phillips head screws do not come out; only loosen and are built into the frame.

  7. X3aawZlQB4YeLTn3

    • Loosen the four 2.5 mm-long Phillips screws securing the heat sink.

    • Loosen the four 2.5 mm-long Phillips screws securing the fan.

  8. QkXTLTdYXPCkpnAH

    • Lift the heat sink out.

  9. eJTxJlAcn3htkQYs
    eJTxJlAcn3htkQYs
    PHAe5cZloxGZBUMR
    qgYWcMKBmVUebODV

    • Push the fan connector directly out of it socket.

    • Remove the fan.

  10. KCuBORXg1oqp6Vki
    KCuBORXg1oqp6Vki
    TEYPQmkIowoeWXwX
    t5N5jaxi1RA1dpNd

    • Remove the 2 mm-long Phillips screw.

    • Remove the 2.5 mm-long Phillips screw.

  11. JtlbuuVSPoGwGZrO
    JtlbuuVSPoGwGZrO
    3VbwwqKrn6JOPnFQ
    soxmmJtUVmHIrrOY

    • Disconnect the ZIF connector by gently lifting the hinged locking flap on the connector's top edge until it's vertical, then carefully slide the ZIF connector straight out.

    • Lift the motherboard at an angle making sure to slide the ports out the casing.

Conclusão

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.

Autor(a)

Timothy Zibrida

Membro desde: 15/10/25

523 Reputação

0 comentários