Increasing dedicated video memory in BIOS of desktop computers

Very often we face a problem of lack of graphics card.But actually there is a way to play games which need more video memory without graphics card.
Following are the steps to be followed:
1.Go to the BIOS of your PC.
2.Select Advanced chipset features.
3.Change the VGA Share Memory Size.

This will eat your RAM and is not much good for your PC.