I have step by step procedure about installing video card.1. Turn off your PC, unplug it, and remove your computer's case.
"Your computer should have either a PCI
16x or AGP
slot for your card. The card won't fit into the wrong slot, so you can't go wrong. But don't confuse your computer's thin memory
slots for its video card slot."2. With a small screwdriver, remove the screw holding in the old card or the metal cover.
"Don't lose that screw! You need it to secure the new card in place."3. If you're replacing an old card, pull it up and out of the slot (left).
"If you're not replacing an old card, remove the metal cover from the back of your computer (right)."4. Hold the card by its edges and position it over the correct slot.
"The edge with the shiny metal bracket should face toward the back of your computer. (That shiny bracket replaces the cover, if you removed one.)"5. Line up the tabs and notches on the card's bottom with the notches in the slot. Push the card slowly into the slot.
"You may need to rock the card back and forth gently. When the card pops in, you can feel it come to rest. Don't force it!"6. If the video slot has it, bend out the flexible plastic retaining clip that fits over a tab on the end of the video card.
"When the card fits into the slot, release the clip, letting it hold the card in place."7. Secure the card in the slot with the screw you removed in Step 3, then plug the computer back in, turn it on, and see whether Windows recognizes and installs the card.
"Windows usually recognizes newly installed cards and sets them up to work correctly."8. If everything's working, put your PC's cover back on.
"If something goes wrong, turn off your computer, unplug it, and make sure you've seated the card correctly."
Be careful not to touch any chips. Touch as little as possible on the video card or inside your machine.
If possible, do the installation in an non-carpeted area to avoid static.
If possible, use the slot with the most open space around it.
If you do not understand these instructions or you lack good manual dexterity, have a qualified technician install the video card for you.