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Dell Optiplex SX280 Motherboard Replacement

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  1. Dell Optiplex SX280 Motherboard Replacement, Panel Cover: 1 단계, 이미지 1/1
    • Make sure the computer is turned off, by selecting the start menu and choosing “Shut Down”.

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

  2. Dell Optiplex SX280 Motherboard Replacement: 2 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 2 단계, 이미지 2/2
    • Lay the computer on its side; you will see a blue knob.

    • Turn this knob 90 deg clockwise.

  3. Dell Optiplex SX280 Motherboard Replacement: 3 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 3 단계, 이미지 2/2
    • Slide the panel case forward about 1/2 inch while knob is turned.

    • Lift panel case off computer.

  4. Dell Optiplex SX280 Motherboard Replacement, Heat Sink: 4 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement, Heat Sink: 4 단계, 이미지 2/2
    • Remove the large blue cover from the computer, there are no screws or tabs keeping it in place.

  5. Dell Optiplex SX280 Motherboard Replacement: 5 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 5 단계, 이미지 2/2
    • Press down on the release tab above the heat sink.

  6. Dell Optiplex SX280 Motherboard Replacement: 6 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 6 단계, 이미지 2/2
    • Pull the heat sink out of the computer while pressing on the release tab.

    • When reassembling make sure to clean the processor and heat sink of all old thermal paste and apply new paste to the processor

  7. Dell Optiplex SX280 Motherboard Replacement, Upper Fan: 7 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement, Upper Fan: 7 단계, 이미지 2/2
    • Remove the power supply that connects the upper fan to the motherboard. The power supply has black, red, green and yellow wires.

  8. Dell Optiplex SX280 Motherboard Replacement: 8 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 8 단계, 이미지 2/2
    • Remove the rubber grommets from the base of the fan. A spudger may be useful.

  9. Dell Optiplex SX280 Motherboard Replacement: 9 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 9 단계, 이미지 2/2
    • Press on the blue release tab and pull the upper fan out of the computer.

  10. Dell Optiplex SX280 Motherboard Replacement, Lower Fan: 10 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement, Lower Fan: 10 단계, 이미지 2/2
    • Remove the power supply that connects the lower fan to the motherboard, distinguished by it's black, red, green and yellow wires.

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

  11. Dell Optiplex SX280 Motherboard Replacement: 11 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 11 단계, 이미지 2/2
    • Remove the rubber grommets from the base of the fan. A spudger may be useful.

  12. Dell Optiplex SX280 Motherboard Replacement: 12 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 12 단계, 이미지 2/2
    • Press on the blue release tab and remove the fan.

  13. Dell Optiplex SX280 Motherboard Replacement, RAM: 13 단계, 이미지 1/1
    • The RAM are the two green cards in the corner of the computer.

    • At each end of the card, there are two white clips securing the RAM to the Motherboard.

  14. Dell Optiplex SX280 Motherboard Replacement: 14 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 14 단계, 이미지 2/2
    • Push down both white clips with your thumbs until you hear a click.

    • The RAM cards can now be removed.

  15. Dell Optiplex SX280 Motherboard Replacement, Hard Drive: 15 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement, Hard Drive: 15 단계, 이미지 2/2
    • Unplug the blue cable that connects the hard drive to the motherboard.

  16. Dell Optiplex SX280 Motherboard Replacement: 16 단계, 이미지 1/1
    • Unplug the power supply, distinguished by its red and yellow wires.

  17. Dell Optiplex SX280 Motherboard Replacement: 17 단계, 이미지 1/1
    • Squeeze the release tabs on either side of the hard drive.

    • Then slide the hard drive out of the computer while squeezing the tabs.

  18. Dell Optiplex SX280 Motherboard Replacement, Motherboard: 18 단계, 이미지 1/1
    • Unplug the cable that connects the hard drive to the Motherboard.

  19. Dell Optiplex SX280 Motherboard Replacement: 19 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 19 단계, 이미지 2/2
    • Press on the release tab and remove the motherboard speaker which is attached to the side of the tower.

  20. Dell Optiplex SX280 Motherboard Replacement: 20 단계, 이미지 1/1
    • Unplug the power cable attached to the motherboard speaker.

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

  21. Dell Optiplex SX280 Motherboard Replacement: 21 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 21 단계, 이미지 2/2
    • Remove four screws located at the back of the computer tower.

  22. Dell Optiplex SX280 Motherboard Replacement: 22 단계, 이미지 1/1
    • Carefully detach the motherboard from the computer case.

  23. Dell Optiplex SX280 Motherboard Replacement: 23 단계, 이미지 1/1
    • Lift the motherboard from the rest of the computer case.

    Hi,

    Excellent guide.

    I have one of these, and i was thinking of opening it up.

    Its sound output disappeared one day. Quite unexpectedly.

    No reason that i could see. Couldn't find anything in the

    settings to make it go again.

    Finally i thought that maybe its 'sound card' had gotten

    jogged, or maybe loose, and needed 're-seating'.

    After reading through your article on the SX-280,

    i now see that it has no 'sound card'.

    It has 'on-board' sound facilities.

    So for me that has pros and cons.

    Pros, i dont need to look for a sound card to re-seat it.

    Cons, i dont know what to do about my lost sound now.

    As to updating the images, i think they are appropriately

    dated to suit this model of PC.

    Pre-Requisites ... Not quite sure what this refers to.

    Maybe a phillips screwdriver is a prerequisite.

    Maybe i missed something, but i dont see that newer pics

    would help at all, but the poster is quite correct about

    this guide, it is very good.

    Regards, John :)

    John - 답글

    REal nice writeup, saved me a lot of guesswork. Thanks a lot.

    JA Reyes, MArch 30, 2015.

    Jose Reyes - 답글

    Fan closer to heat sink

    No need to remove rubber grommets. After pressing blue tap, fan can be moved sideways, towards housing, after about 2 to 3 mmm travel the slots that hold it become wider, and fan, plus blue plastic bracket can be lifted out.

    Same is true for other fan, but more difficult to slide. This fan does not have

    to be removed to get motherboard out.

    Dieter Ast - 답글

  24. Dell Optiplex SX280 Motherboard Replacement: 24 단계, 이미지 1/1
    • Unplug the cable that powers the hard drive, which has orange, red and yellow wires.

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

  25. Dell Optiplex SX280 Motherboard Replacement: 25 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 25 단계, 이미지 2/2
    • Unplug the cable that powers the emergency shut off, distinguished by its red wires.

    • Make sure to press on the release tab while removing the emergency shut off.

  26. Dell Optiplex SX280 Motherboard Replacement: 26 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 26 단계, 이미지 2/2
    • Remove two screws from the Hard Drive Stand.

  27. Dell Optiplex SX280 Motherboard Replacement: 27 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 27 단계, 이미지 2/2
    • Slide the Hard Drive Stand to left side.

    • Remove the stand from the rest of the rear panel.

  28. Dell Optiplex SX280 Motherboard Replacement: 28 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 28 단계, 이미지 2/2
    • Remove the studs that support the Hard Drive Stand from the motherboard.

    • The studs can be removed by hand.

  29. Dell Optiplex SX280 Motherboard Replacement: 29 단계, 이미지 1/3 Dell Optiplex SX280 Motherboard Replacement: 29 단계, 이미지 2/3 Dell Optiplex SX280 Motherboard Replacement: 29 단계, 이미지 3/3
    • Remove the four screws located on heat sink stand.

    • The heat sink stand can now be lifted from the motherboard.

  30. Dell Optiplex SX280 Motherboard Replacement: 30 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 30 단계, 이미지 2/2
    • Remove the four screws holding the motherboard to the rear computer panel.

  31. Dell Optiplex SX280 Motherboard Replacement: 31 단계, 이미지 1/2 Dell Optiplex SX280 Motherboard Replacement: 31 단계, 이미지 2/2
    • The motherboard can now be removed from the remaining panel.

결론

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

다른 11명이 해당 안내서를 완성하였습니다.

Tom

회원 가입일: 10/04/10

841 평판

안내서 7개 작성하였습니다

Cal Poly, Team 22-4, Maness Fall 2010 Cal Poly, Team 22-4, Maness Fall 2010 회원

CPSU-MANESS-F10S22G4

4 회원들

안내서 26개 작성하였습니다

댓글 2개

Good job. Thanks for sharing, friend.

Angel Peguero - 답글

Great guide! I got stuck at the Mobo tray, I knew the black screws were involved but couldn't get it with out help. Thanks!

Fans can be removed with board tray, otherwise they're getting pulled off their rubber isolating feet. Once out with the mobo, the fans slide off the board tray with their plastic shoes attached.

purchases - 답글

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