|This is taken straight from the website you are looking at buying from.|
AGP based PC is required with one 4X/8X AGP slot available on the motherboard
400 Watt or greater power supply is recommended with one 6 pin power connector
Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products
1GB of system memory recommended "
Does your powersupply have an available 6 pin connector?
Does it have a single 12V rail or multiple 12V rails? What brand/model
The other thing to ask is whether the card is backwards compatible with DX 9.0c since that is the highest DX standard that runs on XP.
I have a similar ATI card running in a P4 XP System on a gigabyte motherboard and it does the job nicely. My next step up will have to be a complete new system.
Goin' Fishin' (Some day)