Lenovo ThinkStation P720 Hardware Maintenance Manual page 222

• "PCIe card" on page 158
• "Full-length PCIe card" on page 164
• "Memory module" on page 174
• "Flex-bay bracket" on page 125
• "Front fan assembly" on page 169
• "Rear fan assembly" on page 171
• "Power supply assembly" on page 156
• "Heat-sink-and-fan assembly" on page 203
4. Record the cable routing and cable connections, and then disconnect all cables from the system board.
See "Parts on the system board" on page 38.
5. Remove the system board. See "System board" on page 211.
6. To remove the front panel I/O cable, do the following:
a. Remove the screw that secures the front panel I/O cable to the chassis.
Figure 206. Removing the screw that secures the front panel I/O cable
b. Remove any cable ties that are binding the front panel I/O cable to the chassis. And then remove the
front panel I/O cable with bracket out of the chassis.
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P720 Hardware Maintenance Manual