|In order for your graphics card to be recognized correctly|
- the main chipset drivers for the mboard must be installed.
If you don't know whether they are....
State the make and model of your brand name system, or if it is a generic system, the make and model of the desktop mboard.
The specific brand name system model is usually on a label on the outside of the case somewhere, or it can be determined by going to the brand name's web site.
The model of the mboard in a generic system is usually printed in obvious larger characters on the surface of the mboard, often between the card slots.
- the specific drivers for the graphics card must be installed
- BEFORE you install the specific drivers for the graphics card, the video in Windows must be set to a default VGA mode of one sort or another
- if you were using onboard video or another graphics card previously, un-install any drivers and associated programs listed in Control Panel - Add/Remove programs BEFORE you install the drivers for the graphics card - usually that sets the video in Windows to to a default VGA mode of one sort or another
"I disabled onboard SG3 Unichrome graphics card in BIOS"
The term CARD is frequently mis-used.
Onboard video - video built into the mboard - IS NOT A CARD!
A CARD is removable and plugs into a slot in the mboard inside the computer case.
In most cases, the onboard video is automatically disabled when you install a video card in an AGP or PCI-E X16 slot, and any settings in the biossetup for it are ignored by the bios and the operating system. .
You should check the setting for Primary Video or Intialize Video First or similar in the bios setup - it should be set to AGP if it's an AGP card, or to PCI-E if it's a PCI-E card, or to PCI if it's a PCI card.