Power off the computer and unplug it
Open the case side panel
Locate the PCIe x16 slot on the motherboard
Remove the corresponding rear expansion slot covers
Check that the graphics card fits the case and slot space
Align the card with the PCIe x16 slot
Press the card straight down until it is fully seated
Secure the card to the case with screws or the retention bracket
Connect any required PCIe power cables from the power supply
Reinstall the side panel
Reconnect power and turn on the computer
Install or update the graphics card drivers after booting