If i have a intel 82945g express chipset family video card, can i replace it with a ati radeon video card?

if you have a portable computer, you have to stick with the Video chip set which comes with your portable.



if you have a desktop computer with a VGA (or PCI-Express) port available, yes, buying an ATI Radeon card is a good idea;

first unistall the current driver:

right click on My Computer,

click Properties,

click on Hardware and click on the Device Manager button. click on the [+] next to Display adapter;

right click on the line that appears underneath Display adapter and

click on Properties

click on Driver and click on the Uninstall button and click Yes or OK as needed.



when the PC is restarting you have to go into the BIOS of your computer (watch the bottom of the screen when it first displays something and look for an instruction like «hit XXX to access your BIOS»

XXX can be DEL or F2 or something like this.

once in the BIOS, you need to go to advanced features and look for something like Default VGA; choice will be Internal or External (2nd might be VGA port).

choose the 2nd one (External / VGA port aso.)

save the change (and restart your PC) by pressing the F10 key;

when the PC is displaying the 1st screen again hit the key to access the BIOS, again. once the BIOS screen is displayed, power off the PC (hold the power button for 4 seconds).



install the video card in the computer



Windows will now detect your (new) ATI card and offer to install a driver for it; if you don't plan to play games or do advanced graphics, you can let Windows install its own driver.

if you need 3D / OpenGL support, go to http://ati.amd.com/support/driver.html (ATI's driver download page) to get the latest driver; i would advice to download ONLY the Driver (*NOT* the Catalyst suite, it will only bug down your PC). once it is downloaded, start the installation program and follow its instructions.|||If it's an on-board video chip, then you can't replace it. But you can put in a radeon graphics card, and use that instead. There's nothing wrong with having two video cards in a computer. Most computers can handle it without any problem.