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Dell Optiplex 745 Small Form Factor Motherboard Replacement

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  1. Dell Optiplex 745 Small Form Factor Motherboard Replacement, Opening the case: step 1, image 1 of 2 Dell Optiplex 745 Small Form Factor Motherboard Replacement, Opening the case: step 1, image 2 of 2
    • Pull the tab and the lid will pop up.

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  2. Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 2, image 1 of 2 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 2, image 2 of 2
    • Grab the lid and pull it up and off.

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  3. Dell Optiplex 745 Small Form Factor Motherboard Replacement, Motherboard: step 3, image 1 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement, Motherboard: step 3, image 2 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement, Motherboard: step 3, image 3 of 3
    • Disconnect all of the cords that are connected to the motherboard.

    • Press in the lever on the side of the male end, and then pull out.

    • Pull cord straight out.

    • Disconnect the front plate (USB and audio output) from the motherboard.

    • Some of the cords in the pictures are missing due to the condition of our device when creating this guide.

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  4. Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 4, image 1 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 4, image 2 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 4, image 3 of 3
    • Remove the graphics card.

    • Lift the blue latch on the fat end of the graphics card.

    • Pull the blue lever on the skinny end of the graphics card toward the power supply.

    • Pull out one end of the card at a time.

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  5. Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 5, image 1 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 5, image 2 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 5, image 3 of 3
    • Remove the heat sink.

    • Unscrew the (2) two screws using a Phillips #2 screwdriver and lift out the heat sink.

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  6. Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 6, image 1 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 6, image 2 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 6, image 3 of 3
    • Remove the (5) five 6mm Phillips #2 screws from the motherboard.

    • Remove the (2) two 17mm Phillips #2 screws from the mount for the heat sink.

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  7. Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 7, image 1 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 7, image 2 of 3 Dell Optiplex 745 Small Form Factor Motherboard Replacement: step 7, image 3 of 3
    • Remove the back plate by lifting straight out by the blue latch that secures the graphics card.

    • Pull the end of the motherboard closest to the back of the computer away from the static back plate.

    • Lift this end away and out of the case.

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Conclusion

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

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Alexander Rosner

Member since: 10/03/17

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USF Tampa, Team S5-G5, Walkup Fall 2017 Member of USF Tampa, Team S5-G5, Walkup Fall 2017

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