Hi. I have an old Dell GX270 with Windows XP Professional. I bought it brand new about 5 months ago from a farmers’ cooperative that never used the machine. I have purchased a GeoForce MX400 AGP card 64 MB for the computer, and I would like to get the card up and running. I installed the card and booted the machine but got a black screen. So I took the card out, went to the site to download the driver for the card for Windows XP, and downloaded and attempted to install it. I got a message that no compatable device could be found for the driver and the program closed. I am aware that the power supply on the Dell is only 210 Watts, and I have a number of USB devices connected to the machine, including a DVD R/W and a backup hard drive. I did turn off the CD ROM on the machine and the floppy, and I unplugged the USB devices and attempted another boot. The result was the same black screen for this boot. My question is this. Was the cause of the black screen when I installed the AGP card a shortage of power or is there some trick I need to know to get this card running on this variety of Dell?
