Lenovo ThinkStation P520 Hardware Maintenance Manual page 163

3. To remove a PCIe card retainer, pull and pivot the tab on the front fan assembly as shown to open the
latch inside.
Figure 106. Opening the latch in the front fan assembly
Gently pull the PCIe card retainer out of the slot in the front fan assembly and then remove the card
retainer from the PCIe card latch.
Note: The PCIe card retainer is only available on some models.
Figure 107. Removing the PCIe card retainer
4. To remove the PCIe card, do the following:
.
Chapter 9 Hardware removal and installation
155