Lenovo ThinkSystem SR860 V3 User Manual page 186

Figure 123. Removing PCIe riser 2
a. Disconnect the PCIe riser 2 assembly cables from the system board assembly. See
2 cable routing" on page 426
b. Grasp and lift the PCIe riser to remove it from the chassis.
c. Record the cable connections and disconnect all internal cables from the PCIe adapters.
Step 3. Remove PCIe riser 1.
Figure 124. Removing PCIe riser 1
ThinkSystem SR860 V3 User Guide
176
for more information on the internal cable routing.
"PCIe riser