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HP 15-ac121dx Motherboard Replacement

What you need

  1. HP 15-ac121dx Motherboard Replacement, Battery: step 1, image 1 of 1
    • Remove all external devices from the computer.

    • Remove the charging cord from the computer.

  2. HP 15-ac121dx Motherboard Replacement: step 2, image 1 of 1
    • Turn off the computer by holding the power button.

  3. HP 15-ac121dx Motherboard Replacement: step 3, image 1 of 2 HP 15-ac121dx Motherboard Replacement: step 3, image 2 of 2
    • To remove the battery, slide the left slider on the back to the unlocked position.

  4. HP 15-ac121dx Motherboard Replacement: step 4, image 1 of 2 HP 15-ac121dx Motherboard Replacement: step 4, image 2 of 2
    • Push the right slider inwards.

    • Remove the battery out by pulling straight out and to the right.

  5. HP 15-ac121dx Motherboard Replacement, Back Panel: step 5, image 1 of 3 HP 15-ac121dx Motherboard Replacement, Back Panel: step 5, image 2 of 3 HP 15-ac121dx Motherboard Replacement, Back Panel: step 5, image 3 of 3
    • Locate the CD Compartment panel and gently slide it out.

  6. HP 15-ac121dx Motherboard Replacement: step 6, image 1 of 1
    • Remove the back of the laptop by unscrewing the screws shown.

    • Also remove the other 5 Phillips screws lining the back cover.

  7. HP 15-ac121dx Motherboard Replacement: step 7, image 1 of 3 HP 15-ac121dx Motherboard Replacement: step 7, image 2 of 3 HP 15-ac121dx Motherboard Replacement: step 7, image 3 of 3
    • Using the prying tool, wedge it underneath the back of the laptop and do the same all around until the back comes off.

    • Dont forget to unscrew 2 screws under 2 plastic tabs (one on each hing). The lid will not come off without them being removed!

  8. HP 15-ac121dx Motherboard Replacement, Fan: step 8, image 1 of 3 HP 15-ac121dx Motherboard Replacement, Fan: step 8, image 2 of 3 HP 15-ac121dx Motherboard Replacement, Fan: step 8, image 3 of 3
    • Locate the Fan as shown.

    • Pull out the black cable, with four wires attached from its port.

  9. HP 15-ac121dx Motherboard Replacement: step 9, image 1 of 2 HP 15-ac121dx Motherboard Replacement: step 9, image 2 of 2
    • Pull out the white cable wire from its port.

    • Unscrew the two black Phillips screws holding in the fan.

  10. HP 15-ac121dx Motherboard Replacement: step 10, image 1 of 2 HP 15-ac121dx Motherboard Replacement: step 10, image 2 of 2
    • Remove fan.

    • Unscrew the two screws holding in the fan.

  11. HP 15-ac121dx Motherboard Replacement, CD Compartment: step 11, image 1 of 3 HP 15-ac121dx Motherboard Replacement, CD Compartment: step 11, image 2 of 3 HP 15-ac121dx Motherboard Replacement, CD Compartment: step 11, image 3 of 3
    • Locate the CD Compartment as shown and gently slide it out.

  12. HP 15-ac121dx Motherboard Replacement, Motherboard: step 12, image 1 of 1
    • Remove the TEN 3mm screws.

    • Remove the ONE 9mm screw.

  13. HP 15-ac121dx Motherboard Replacement: step 13, image 1 of 2 HP 15-ac121dx Motherboard Replacement: step 13, image 2 of 2
    • Locate the four ribbon clips.

    • Lift the grey part of the ribbon clips.

    • Pull the ribbon cable out and repeat this step for all four ribbon cables.

    • Also use a spudger and release the TWO cables attaching the hard drive to the motherboard. Another ribbon cable is located where the fan was sitting.

  14. HP 15-ac121dx Motherboard Replacement: step 14, image 1 of 2 HP 15-ac121dx Motherboard Replacement: step 14, image 2 of 2
    • Pull out the white cable (contains red and white cable attached to a black support) with wires from its port.

  15. HP 15-ac121dx Motherboard Replacement: step 15, image 1 of 1
    • Remove the motherboard.

Conclusion

To reassemble your device, follow these instructions in reverse order.

One other person completed this guide.

Onose Aigbe

Member since: 01/30/18

390 Reputation

3 Guides authored

Team

Baylor, Team S1-G2, Johnson Spring 2018 Member of Baylor, Team S1-G2, Johnson Spring 2018

BU-JOHNSON-S18S1G2

3 Members

6 Guides authored

One Comment

Pls can the motherboard of HP - 15 ac-250g5 replacethe board of HP 15 ac-121dx since they have the same body structure.

Emeka Jeffrey - Reply

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