Replacing the graphics processing unit in an air-cooled 8335-GTC, 8335-GTG, or 8335-GTH system

To replace a graphics processing unit an air-cooled system, complete the steps in this procedure.

1. Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is plugged into a ground jack or connected to an unpainted metal surface. If not, do so now.
2. Remove the GPU from the protective packaging. Remove the protective covers from the bottom of the GPU.
   Remove the protective cover starting with its corner.
3. Carefully align the GPU and heat sink such that the alignment pins fit into the system backplane. Ensure that the arrow on the heat sink that indicates airflow points to the rear of the chassis. Insert the GPU into the system backplane.
4. Secure the GPU to the system backplane. Use a #2 Phillips head screw driver. Tighten the screws in the sequence that is shown in Figure 1.
   Start with the inner four screws. Thread the inner four screws half-way using the sequence that is shown. Once all four screws are threaded, then fully tighten them. Next, tighten the outer four screws by using the sequence that is shown. Take care to not damage the system backplane with the screw driver tip.

   

5. Place the protective covers on the bottom of the replaced GPUs.
   This protects the pins when returning the GPU.