Motherboard drivers most likely. Use EVEREST or other tools to find out what chipset then google such to get those drivers.
Microsoft won't do this for you.
I just bought it two months ago. There were a lot of craps inside.
I deleted everything include the recovery partition.
Now I have Xp pro on it without these useless recovery partition.
The only problem: usb speed run slow like usb 1.1
Any idea how to fix or patch the driver to usb 2.0 ?