Dell Latitude E5520M (Early 2011) - Manual (Page 39)

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CPU Door
Removing the CPU Door
1. Follow the procedures in Before Working On Your Computer .
2. Remove the battery .
3. Remove the back panel .
4. Remove the screws that secure the CPU door to the computer.
5. Remove the CPU door.
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Installing the CPU Door
Installing the CPU Door
1. Slide the CPU door downwards and towards the back of the computer.
2. Tighten the screws to secure the CPU door.
3. Replace the back panel .
4. Replace the battery .
5. Follow the procedures in After Working Inside Your Computer .
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