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Dell Optiplex GX620 Motherboard Replacement

What you need

  1. Dell Optiplex GX620 Motherboard  Replacement, How to unplug and discharge before repair: step 1, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement, How to unplug and discharge before repair: step 1, image 2 of 2
    • Power down your PC and remove the power cord from the back.

  2. Dell Optiplex GX620 Motherboard  Replacement: step 2, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement: step 2, image 2 of 2
    • Press and hold the power button for about 10 seconds, then release.

    • This helps drain any remaining power stored in the capacitors, so that you can safely work on the internal components.

  3. Dell Optiplex GX620 Motherboard  Replacement, Dell Optiplex GX620 Side Panel Disassembly: step 3, image 1 of 1
    • With the computer standing upright, firmly pull on the tab at the back of the computer.

    • When the side panel pops free, gently pull the panel away from the computer.

    • If you have trouble freeing the side panel from the case, you may need to pull the tab a bit harder.

  4. Dell Optiplex GX620 Motherboard  Replacement, Now unplug your hard drives power and data cables.: step 4, image 1 of 3 Dell Optiplex GX620 Motherboard  Replacement, Now unplug your hard drives power and data cables.: step 4, image 2 of 3 Dell Optiplex GX620 Motherboard  Replacement, Now unplug your hard drives power and data cables.: step 4, image 3 of 3
    • Move the cables out of your way.

    • SATA Power

    • SATA Data

  5. Dell Optiplex GX620 Motherboard  Replacement, Unplug your floppy drive on the motherboard and the drive.: step 5, image 1 of 3 Dell Optiplex GX620 Motherboard  Replacement, Unplug your floppy drive on the motherboard and the drive.: step 5, image 2 of 3 Dell Optiplex GX620 Motherboard  Replacement, Unplug your floppy drive on the motherboard and the drive.: step 5, image 3 of 3
    • Unplug the power cable

    • Unplug the data cable

  6. Dell Optiplex GX620 Motherboard  Replacement, Disconnect CPU fan.: step 6, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement, Disconnect CPU fan.: step 6, image 2 of 2
    • Unplug the fan that is on the motherboard.

  7. Dell Optiplex GX620 Motherboard  Replacement: step 7, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement: step 7, image 2 of 2
    • There is two Phillips #2 screws that need to be removed.

    • The two screws have springs that keep them there.

  8. Dell Optiplex GX620 Motherboard  Replacement, New it’s time to remove the  heat sink.: step 8, image 1 of 3 Dell Optiplex GX620 Motherboard  Replacement, New it’s time to remove the  heat sink.: step 8, image 2 of 3 Dell Optiplex GX620 Motherboard  Replacement, New it’s time to remove the  heat sink.: step 8, image 3 of 3
    • Lift the heat sink.

  9. Dell Optiplex GX620 Motherboard  Replacement, CPU removal.: step 9, image 1 of 3 Dell Optiplex GX620 Motherboard  Replacement, CPU removal.: step 9, image 2 of 3 Dell Optiplex GX620 Motherboard  Replacement, CPU removal.: step 9, image 3 of 3
    • Push and release tap on it. And then take the CPU out.

    • Remember to put new thermal paste on the CPU.

  10. Dell Optiplex GX620 Motherboard  Replacement, Remove the ram: step 10, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement, Remove the ram: step 10, image 2 of 2
    • Push the tabs down.

    • Pull the cards out.

  11. Dell Optiplex GX620 Motherboard  Replacement, Remove the DVD cable: step 11, image 1 of 3 Dell Optiplex GX620 Motherboard  Replacement, Remove the DVD cable: step 11, image 2 of 3 Dell Optiplex GX620 Motherboard  Replacement, Remove the DVD cable: step 11, image 3 of 3
    • Pull the two cables from the DVD drive off.

  12. Dell Optiplex GX620 Motherboard  Replacement: step 12, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement: step 12, image 2 of 2
    • Pull the power cable from the DVD drive off.

  13. Dell Optiplex GX620 Motherboard  Replacement, Remove the CPU power: step 13, image 1 of 1
    • Pull the CPU power cable off.

  14. Dell Optiplex GX620 Motherboard  Replacement, Remove the three cables: step 14, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement, Remove the three cables: step 14, image 2 of 2
    • Pull the three cables off.

  15. Dell Optiplex GX620 Motherboard  Replacement, Remove the graphics card: step 15, image 1 of 3 Dell Optiplex GX620 Motherboard  Replacement, Remove the graphics card: step 15, image 2 of 3 Dell Optiplex GX620 Motherboard  Replacement, Remove the graphics card: step 15, image 3 of 3
    • Push the tab to releases the latch.

    • Push the tab and pull the graphics card out.

  16. Dell Optiplex GX620 Motherboard  Replacement, Remove the motherboard screws: step 16, image 1 of 2 Dell Optiplex GX620 Motherboard  Replacement, Remove the motherboard screws: step 16, image 2 of 2
    • Remove the six Philips #2 screws.

    • Remove the two green Philips #2 screws.

  17. Dell Optiplex GX620 Motherboard  Replacement, Remove the motherboard: step 17, image 1 of 3 Dell Optiplex GX620 Motherboard  Replacement, Remove the motherboard: step 17, image 2 of 3 Dell Optiplex GX620 Motherboard  Replacement, Remove the motherboard: step 17, image 3 of 3
    • Gently pull the motherboard out.

Conclusion

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

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