Lenovo 10B0 Maintenance Manual page 242

1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 211.
3. Remove the hard disk drive assembly. See "Installing or removing the hard disk drive assembly" on
page 213.
4. Remove all memory modules that are currently installed. See "Installing or replacing a memory module"
on page 215.
5. Remove the system fan. See "Replacing the system fan" on page 229.
6. Remove the thermal module. See "Replacing the thermal module" on page 231.
7. If your computer has a Wi-Fi card module installed, remove the Wi-Fi card module. See "Replacing
the Wi-Fi card module" on page 219.
8. Record the cable routing and cable connections and then disconnect all cables from the system board.
9. Remove the five screws that secure the system board by following the sequence shown in the following
illustration.
Figure 206. Removing the five screws that secure the system board
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ThinkCentre M73 Hardware Maintenance Manual