After replacing a bad video card, what should be the NEXT step in the troubleshooting strategy?

Testing the solution is an essential step in the troubleshooting process after replacing a faulty video card. This step involves verifying that the new hardware operates correctly and resolves the initial issue that prompted the replacement. By testing the solution, you can ensure that the video card is functioning properly, displaying video output as expected, and that any related issues, such as screen artifacts or crashes, have been resolved.

Additionally, testing helps confirm that the installation process was done correctly—checking for a proper physical connection, ensuring the card is seated tightly in its slot, and confirming that any necessary power connections are made. This step effectively validates the success of your repair efforts before moving on to additional actions or concluding the troubleshooting process.