How to install the graphics card on motherboard ，Please refer to FAQ: How to install the graphics card on motherboard
2. When install RTX4000 series graphic card，Please use 4 independent system power supply ports for connection as shown in the figure below:
Note:
a. Please don't bent this cable vertically and horizontally
b. Please make sure the cable is properly connected
3. Since RTX4000 series graphics card is heavy，you can use the graphics card holder to enhance the retention as below picture
Note: you can find this graphics card holder in colour box