Lenovo ThinkSystem SR645 Maintenance Manual page 229

Step 3. Grasp the riser assembly by its edges and carefully lift it out of the chassis.
Figure 112. Riser assembly removal
Step 4. If necessary, remove the PCIe adapters that are installed on the riser card. See Remove a PCIe
adapter.
Step 5. Remove the riser card from the bracket.
Figure 113. Riser card removal
a. Remove the two screws that secure the riser card to the bracket.
b. Remove the riser card.
.
Chapter 4 Hardware replacement procedures
219