Dell OptiPlex 3070 Tower Service Manual page 40

5. Repeat the steps to remove any additional PCIe expansion card.
Installing PCIe expansion card
1. To install the PCIe expansion card:
a.
NOTE: To remove the PCIe brackets, push the bracket upwards from the inside of your computer to release it and
then lift the bracket away from your computer.
Insert a screwdriver in the hole of a PCIe bracket and push hard to release the bracket 4, and then lift the bracket out
from your computer.
b. Insert the PCIe expansion card to the connector on the system board [1].
c. Secure the PCIe expansion card by pushing the card retention latch until it clicks into place [2].
NOTE: This step is applicable only for the connector with card retention latch, otherwise, skip this step.
40 Removing and installing components