After replacing the graphics card, you must reinstall the graphics card driver of the corresponding model before it can be used normally. You can download the driver from the official website of the brand of the graphics card. Here is an example of downloading the driver from the Sapphire official website:

< p> Search the official website of Sapphire graphics card on Baidu, and click on the search results page to enter the official website.

On the homepage, move the mouse to "Support Services" and select "Download File" to enter the download page.

After the download page, click "File Download" below to download the A card installation driver tool.

After downloading, install and run. The tool will automatically detect the graphics card model and system information of the current computer, and you can update the driver according to the prompts.