Dell OptiPlex All-in-One Plus 7420 Owners Manual - Page 101
Power-button and I/O board, Removing the power-button and I/O board
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10. Install the graphics card. 11. Install the memory. 12. Install the back cover. 13. Install the stand. 14. Follow the procedure in After working inside your computer. Power-button and I/O board Removing the power-button and I/O board CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board shield. 5. Remove the I/O cover. 6. Remove the bottom cover. 7. Remove the I/O bracket. About this task The following image indicates the location of the power-button and I/O board and provides a visual representation of the removal procedure. Removing and installing Field Replaceable Units (FRUs) 101
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