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Dell Optiplex 745 Ultra Small Form Factor Motherboard Replacement

Rédigé par : donnavon (et 9 autres contributeurs)
  • Commentaires : 0
  • Favoris : 2
  • Réparations terminées : 6

Difficulté

Modérée

Étapes

24

Temps nécessaire

45 minutes - 1 heure

Sections

7

Drapeaux

2

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Introduction

Use this guide to replace the motherboard from the computer. Take proper precautions to prevent risk of electrical shock. Be gentle with computer components to prevent accidental damage to fragile parts.

Outils

Pièces

Aucune pièce spécifiée.

  1. Make sure to shut down the computer! You can do this by going to the start menu and clicking shutdown.

    • Make sure to shut down the computer! You can do this by going to the start menu and clicking shutdown.

    • Ensure all cables, speakers and other devices are unplugged and turned off before opening the computer case.

    Modifier

  2. Lay the computer on its side; you will see a blue knob. Turn said knob 90 degrees counter clockwise.

    • Lay the computer on its side; you will see a blue knob. Turn said knob 90 degrees counter clockwise.

    Modifier

  3. Slide the panel case forward about 1/2 inch while knob is turned.

    • Slide the panel case forward about 1/2 inch while knob is turned.

    • Lift panel case off computer.

    Modifier

  4. Remove power and data cables Ground yourself before removing any internal components.

    • Remove power and data cables

    • Ground yourself before removing any internal components.

    Modifier

  5. Locate blue tabs as shown to the left and right of the hard disk drive Squeeze tabs and slide hard disk drive towards you, then lift up on the drive.

    • Locate blue tabs as shown to the left and right of the hard disk drive

    • Squeeze tabs and slide hard disk drive towards you, then lift up on the drive.

    Modifier

  6. Press down on the two white tabs on either side of the memory module; the RAM will pop out.

    • Press down on the two white tabs on either side of the memory module; the RAM will pop out.

    • Be sure you are grounded to avoid electrostatic discharge and to place your memory modules in an anti-static bag.

    Modifier

  7. Press the large button on the corner of the optical drive. Pull on the pop-out button to slide the optical drive out. Press the large button on the corner of the optical drive. Pull on the pop-out button to slide the optical drive out. Press the large button on the corner of the optical drive. Pull on the pop-out button to slide the optical drive out.

    • Press the large button on the corner of the optical drive. Pull on the pop-out button to slide the optical drive out.

    Modifier

  8. Remove the blue shield by sliding it straight upwards. Remove the blue shield by sliding it straight upwards.

    • Remove the blue shield by sliding it straight upwards.

    Modifier

  10. Pull back on the tab nearest to the front case fan. Slide the CPU heat sink from under the clip and pull upward. You may need to twist the CPU heat sink side to side to free it from the thermal paste.

    • Pull back on the tab nearest to the front case fan.

    • Slide the CPU heat sink from under the clip and pull upward.

    • You may need to twist the CPU heat sink side to side to free it from the thermal paste.

    Modifier

  11. Ground yourself before removing any internal components. Push release lever down slightly and away from CPU.

    • Ground yourself before removing any internal components.

    • Push release lever down slightly and away from CPU.

    Modifier

  12. Lift and rotate processor cover off of CPU. Processor cover will remain attached.

    • Lift and rotate processor cover off of CPU.

    • Processor cover will remain attached.

    Modifier

  13. Using two fingers holding the sides, lift the CPU from the socket.

    • Using two fingers holding the sides, lift the CPU from the socket.

    • Do not touch the underside of the CPU or any of the pins.

    • When replacing the CPU, do not use excessive force.

    • Ensure to use the alignment-notches on the new CPU, when replacing.

    Modifier

  14. Unplug the power cable attached to the motherboard speaker.

    • Unplug the power cable attached to the motherboard speaker.

    • Make sure to press on the release tab while removing the power cable.

    Modifier

  15. Remove four black 6mm #2 Phillips screws located at the back of the computer tower.

    • Remove four black 6mm #2 Phillips screws located at the back of the computer tower.

    Modifier

  16. While rotating the case-opening knob, slide the motherboard tray away from the front of the computer. While rotating the case-opening knob, slide the motherboard tray away from the front of the computer.

    • While rotating the case-opening knob, slide the motherboard tray away from the front of the computer.

    Modifier

  17. Lift the motherboard from the rest of the computer case.

    • Lift the motherboard from the rest of the computer case.

    Modifier

  18. Remove two silver 6mm #2 Philips screws from the Hard Drive Stand.

    • Remove two silver 6mm #2 Philips screws from the Hard Drive Stand.

    Modifier

  19. Slide the Hard Drive Stand to left side.

    • Slide the Hard Drive Stand to left side.

    • Lift the stand, and disconnect the HDD fan power.

    Modifier

  20. Unplug the cable that connects the chassis intrusion detection switch, distinguished by its red wires.

    • Unplug the cable that connects the chassis intrusion detection switch, distinguished by its red wires.

    • Unplug the cable that powers the hard drive, which has orange, red and yellow wires.

    • Make sure to press on the release tab while removing the connectors.

    Modifier

  21. Disconnect the two fans from the motherboard.

    • Disconnect the two fans from the motherboard.

    Modifier

  22. Remove the four silver 6mm #2 Philips screws holding the motherboard to the rear computer panel.

    • Remove the four silver 6mm #2 Philips screws holding the motherboard to the rear computer panel.

    Modifier

  23. Remove the studs that support the Hard Drive Stand from the motherboard.

    • Remove the studs that support the Hard Drive Stand from the motherboard.

    • The studs can be removed by hand.

    • If studs can't be removed by hand a 6mm nut driver or spanner may be used.

    Modifier

  24. Remove the four black 9mm #2 Philips screws located on heat sink stand.

    • Remove the four black 9mm #2 Philips screws located on heat sink stand.

    Modifier

  25. The motherboard can now be removed from the remaining panel.

    • The motherboard can now be removed from the remaining panel.

    Modifier
Conclusion

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

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donnavon

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