How to DELL Disassembly OptiPlex 7470 7780 AIO Series RAM SSD Hard Drive Upgrade Repair Replacement (video below)
- Remove the stand with the system lying on its screen. Press down and slide forward the release tab on the cover .
- Keep the release tab in the forward position while lifting the stand upwards .
- Press and hold down the release tab, to release it from the latch on the system board shield and push the cover towards the top of the system .
- Lift the back cover up and away from the system .
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