I'd get a better power supply before adding in a gaming card to the system. Trying to save money can be expensive 😉 Cheap power supply can fry your whole system, not just the video card. Like doing backups of your data, it's too late to fix things once they break. You try to prevent the issues in the first place. 95% of people will have no issues if they did a backup before their drive failed, and 95% of people can avoid issues if they used a better quality power supply in the first place before their systems died.