Dell Optiplex 330 SFF Power Supply Replacement

Written By: Oli
  • Comments: 2
Dell Optiplex 330 SFF Power Supply Replacement

Difficulty

Moderate

Steps

7

Time Required

10 - 15 minutes

Introduction

This shows you how to replace a blown power supply on a Dell Optiplex 330 small form factor PC. Power supplies are normally the first part to go on a desktop and will result in a solid amber power light illuminated on a Dell desktop.

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    • Before you start make sure that all of the leads have been disconnected from the computer.

    • It is strongly recommended that you leave the computer off for at least 15 minutes to allow the components to cool down.

    • You should also ground yourself before starting by using an anti-static band or touching a metal object connected to the ground. This prevents static build up which can destroy sensitive components.

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    • Round the back of the computer next to the power supply you will find a latch.

    • In order to release the case pull this latch straight back - this should make the back of the case pop up.

    • You can now just lift the case up and away from the computer.

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    • Before you can remove the power supply you first have to remove the optical drive.

    • First find the two cables going into the optical drive - they are shown in the first picture.

    • Gently pull both of them out - one of the cables might have a little latch that you have to press in order to release it from the optical drive.

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    • To remove the optical drive first find the little blue latch located next to the optical drive.

    • Pull the latch straight up - at the same time pull the optical drive back. It should now be easy to remove it from the computer.

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    • It should now look like the first picture with the optical drive removed.

    • You now need to remove the power cable from the hard drive.

    • Gently pull the cable out of the back of the hard drive.

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    • You now need to remove the power cable connected to the motherboard.

    • Locate the large 24 pin power connecter - it is located next to the power supply. Carefully press down on the little latch and pull straight up to release.

    • Repeat this procedure for the little 4 pin connecter located between the processer and hard drive.

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    • In order to remove the power supply you have to first remove two screws connecting the power supply to the case.

    • You can now slide the power supply straight back and lift it straight up and out of the computer.

    • It should look like the last picture after the power supply is removed.

Conclusion

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

Author

Oli

Member since: 03/01/14

1310 Reputation

2 comments

Would this be the first item to go bad if the computer is simply not powering on?

Edgar -

If nothing at all was happening when the computer was switched on then certainly its highly likely that the power supply is bad although it could also be a faulty motherboard.

Oli -