To Remove the Motherboard

1. Power off the workstation using the procedure described in the section, To Power Off the Workstation.

2. Remove the left-side access panel using the procedure described in the section, To Remove the Left-Side Access Panel.

3. Gently lay the system on its right side on a stable, nonslip surface.

4. Remove the fan assembly using the procedure described in the section, Replacing the System Fan.

5. Remove any PCIe cards installed on the motherboard (see Removing and Installing PCIe Cards).

6. Remove the DIMMs from the motherboard using the procedure in the section, To Remove DIMMs.

7. Remove heat sink and CPU from the motherboard using the procedure in the section, To Remove the Heat Sink and CPU.

8. Disconnect and label all cables attached to the motherboard.

9. Remove the eight Phillips screws that fasten the motherboard to the chassis (see Figure 3–35).

   Figure 3–35 Removing the Eight Motherboard Screws

   
   

10. Lift the motherboard away from the chassis.