Lenovo ThinkStation P710 User Manual page 120

2. Lay the computer on its side for easier access to the system board.
3. If you are replacing a PCI card with a PCI card retainer installed, remove the retainer first.
a. Pull and pivot the tab on the front fan assembly as shown to open the latch inside.
Figure 93. Opening the latch in the front fan assembly
b. Gently pull the PCI card retainer out of the slot in the front fan assembly and then remove the
card retainer from the PCI card latch.
Figure 94. Removing the PCI card retainer
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ThinkStation P510 and P710 User Guide