I have a Dell Dimension 2400 with onboard graphics that I wanted to try installing a graphics card in. The graphics card is a Radeon 9250. Installed the drivers and then the card, but on reboot, the Windows splash shows and then the screen is blank. I have seen other info. that says to disable the onboard graphics controller in Device Manager. Others say to disable onboard in the BIOS, but the skimpy BIOS doesn't give you that option. My question is this: If I disable the onboard graphics in Device Manager and then the Radeon Card doesn't work for some reason, will I be able to get back to and re-enable the onboard graphics in Device Manager?
(The new Radeon card is showing up in Device Manager as working properly.)