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Replacement procedure
1. Remove the power cord. See "Power cord" on page 57.
2. Remove the computer upper cover. See "Computer upper cover" on page 57.
3. Remove the system stand. See "System stand (with or without wireless charging module)" on page 59.
4. Remove the computer back cover. See "Computer back cover" on page 59.
5. Remove the power switch board. See "Power switch board" on page 63.
6. Remove the side I/O board. See "Side I/O board" on page 64.
7. Remove the system board shielding fence. See "System board shielding fence" on page 65.
8. Remove the PSU and PSU socket bracket. See "PSU and PSU socket bracket" on page 66.
9. Remove the memory module. "Memory module" on page 68.
10. Remove the heat sink. "Heat sink" on page 69.
11. Remove the system fans. "System fans" on page 70.
12. Remove the M.2 solid-state drive. "M.2 solid-state drive" on page 71.
13. Remove the Wi-Fi card. "Wi-Fi card" on page 72.
14. Remove the speaker. "Internal speaker" on page 73.
15. Remove the system board. "System board" on page 74.
16. For 24-inch models, remove 17 screws; for 27-inch models, remove 21 screws. Then, lift the middle
frame.
For 24-inch models:
.
Chapter 6
Hardware removal and installation
77
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