Your motherboard, Intel® 915G Express chipset officially supports pcie-16x
refer to : http://www.intel.com/products/chipsets/915g/
And below you will have an excellent information about ATI x800/pro/xt , nVidia 6800gt and more. You might even pick a better card. My opinion is they should be able to work fine. But when talking about a " dell " i can not say anything confidently. And psu sounds real weak. I would get a decent and competible ( dell.... sigh... ) one asap.
http://freespace.virgin.net/m.warner/RoadmapQ204.htm
regards.
refer to : http://www.intel.com/products/chipsets/915g/
And below you will have an excellent information about ATI x800/pro/xt , nVidia 6800gt and more. You might even pick a better card. My opinion is they should be able to work fine. But when talking about a " dell " i can not say anything confidently. And psu sounds real weak. I would get a decent and competible ( dell.... sigh... ) one asap.
http://freespace.virgin.net/m.warner/RoadmapQ204.htm
regards.