Installing a video card is a relatively simple task. If you're installing a newer model, you're likely using a PCI-E 2.0 video card. But whether you're using the latest technology or maybe an AGP video card, the install procedure is still the same.
For most run-of-the-mill video cards, existing case ventilation and cooling will be adequate, but if you've purchased a high-performance card, you'll want to protect your investment and maintain its performance by ensuring the card is properly cooled. Make sure that your case fan(s) moves air directly over the card. Also be sure there are minimal cables blocking airflow over the card.
Hopefully, you did your homework before you purchased your card and have ensured that it's a match with your hardware. (E.g., if you purchased a PCI Express card, you verified that it's compatible with your motherboard.) You should also ensure that your existing power supply has available PCI-E power connectors (if your new video card requires one).
After you've identified the motherboard slot in which you will install the card, remove the corresponding insert from the back of your computer case to make room for the video card's external connections.
If you're installing an AGP card, be sure the clips on either end of the motherboard slot are open.
Line up the card with its slot and slowly insert it. A little pressure on each end of the card should be enough to properly seat it. You may encounter a little resistance where the card's externally facing metal plate meets the case. If this happens, just gently manipulate the plate into its proper location as you apply downward pressure on the card.
Step 8: Install Accessories