Replacing The System Board - Lenovo ThinkCentre M820z User Manual And Hardware Maintenance Manual

Figure 78. Removing the card reader
Figure 79. Installing the card reader
7. Connect the new card reader cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see "Completing the parts replacement" on
page 55.

Replacing the system board

Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove the computer stand. See "Replacing the computer stand" on page 16.
2. Remove the computer cover. See "Removing the computer cover" on page 18.
3. Remove the side I/O bezel. See "Replacing the side I/O bezel" on page 25.
4. Remove the system board shield. See "Replacing the system board shield" on page 26.
5. Remove the VESA mount bracket. See "Replacing the VESA mount bracket" on page 27.
6. Remove the heat sink. See "Replacing the heat sink" on page 32.
7. Remove the microprocessor. See "Replacing the microprocessor" on page 34.
8. Remove the Wi-Fi card. See "Replacing the Wi-Fi card" on page 38.
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M820z User Guide and Hardware Maintenance Manual