|If you're using this S3 Trio 3D / 2X AGP display adapter in XP (or 2000), the operating system probably already has the drivers for it built in.|
You don't need video drivers while booting before the operating system loads in any case, and you should have crude looking video in the operating system at the very least with any video card.
If the video is built into the mboard, it's not a CARD, it's just a video adapter.
If it's a video CARD installed in an AGP slot, if the card does not work at all, some mboards that support 4X or 4X / 8X AGP DO NOT support using 2X AGP video cards, and trying to use one can DAMAGE the mboard !
Tell us the make and model of your brand name system, or if you have a generic desktop system, the make and model of the mboard.
The specific model of a brand name system is shown on a label on the outside of the case somewhere, or it can often be determined by going to the brand name's web site.
The model, sometimes the make, of a mboard in a generic desktop system is usually printed on the mboard's surface in obvious larger characters, often between the slots.
The model is often also displayed on a logo (graphical) screen early in the boot, but it's often not as specific as the specific model number.
For Dell computers, they have a Service Tag number - the specific model can be determined by using that on their site, or can often be determined there automatically by you downloading some software. The Service Tag number should be on a label on the outside of the case, probably on the bottom on a laptop, on the back on a desktop, and is often also shown in the bios Setup.