I've download everything in that link you posted but when i try to install it. "System did not find a driver compatible with your current hardware," and then the then installation shut down.
You should uninstall any previous video drivers on your system. For the ATI driver to install you must have NET Framework 2.0 installed first. In addition, your video card may be malfunctioning. Could be a number of reasons. I installed the driver twice on my two x800's in recent days. Works great.
It sounds like you have set your BIOS to a point where the system does not recognize the 800xt when you try and install it. You have an onboard video chip. You don't have to disable it. Just default your BIOS. Don't disable anything, default it and reboot. The system BIOS should pick up the X800 and make that the primary video source for your system. Then install the video driver. Is the X800 recognized in Device manager? If your system doesn't recognize and install at BIOS default values, you have other issues with your system that are not allowing you do something so simple as to install a video card driver.
I know this may sound weird but i tryed loads of apps trying to find info on my gpu the best thing i found was by accident.
I was running 3d marks on it and noticed there is a system info tab on 2001 that had all the detailed info for my card.
Thought id mention it might be worth a try.
I've finally figure the answer to my problem after calling ATI telephone support. The part number I gave them came back to be a am OEM product from DELL. Therfore, I cannot use the drivers from the website provided badge. My best bet to get this card up and running now is to find the correct driver from dell.com. But it seems that dell doesn't make this video card for Dimension e521. The seller told me he used it on his old DELL XPS system.
It would be really wonderful if I can get this card to work with my Dimension E521 because it ATI customer support guy told me that it is not a ATI X800 XT 128MB PCI-e (12 pixel pipeline), but instead its an ATI X800 XT 256MB PCI-e (16!! pixel pipeline).
This really suck guys. Im really stuck on the dead end now. I've been trying to troubleshoot this thing for an entire week and came back with no absolutely no result. This makes me feel
All the drivers i downloaded from DELL does not work; the installation software from DELL closes on me a few second after I open it. The drivers from ATI.com said that it cannot find my current driver in my system, and it too closes after the error message.
Have you got .NET Framework 2.0 installed if not i think you will need to i had to get it to install my x800xl.
Also reading between the lines a bit ,when you say the system cant find a driver for the software does this mean that you are letting the wizard do the install if so dont. Get the drivers you think are right,put them on desk top.uninstall all traces of old drivers.
Reboot the comp, when the detected new hardware wizard comes up shut it until it stops coming up then double click on the drivers on the desktop and go from there.
Sorry if you already know all this.
Hope you get somewhere with it, keep updating the forum we dont like it when we loose