NOTE To remove the PCIe brackets (2 and 3), 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 [3], and then lift the bracket out from your computer.
Insert the PCIe expansion card to the connector on the system board [1].
Secure the PCIe expansion card by pushing the card retention latch until it clicks into place [2].
Repeat the steps to install any additional PCIe expansion card.