Lenovo 10A4 Hardware Maintenance Manual page 197

3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 154
4. Press the retaining clip
same time.
Figure 161. Pivoting the drive bay assembly upward
5. Remove all memory modules and PCI cards that are currently installed. See "Installing or replacing a
memory module" on page 158 and "Installing or replacing a PCI card" on page 156.
6. Remove the heat sink and fan assembly from the failing system board. See "Replacing the heat sink and
fan assembly" on page 183.
Note: Do not let the thermal grease on the bottom of the heat sink and fan assembly get in contact with
anything.
7. Record the cable routing and cable connections and then disconnect all cables from the system board.
8. Remove the eight screws that secure the system board by following the sequence shown in the
following illustration.
Chapter 9
1 in the direction as shown and pivot the drive bay assembly upward at the
.
Replacing FRUs (machine types: 10A2, 10A3, 10A8, 10A9, 10AH, 10AJ, 10AM, and 10AN)
189