HP does not appear to support XP 64 on that machine:
http://h10025.www1.hp.com/ewfrf/wc/s...70390&lang=en&
Did you install that OS?
What drivers do you need exactly?
You could try to ID the motherboard and go from there but it would be a long shot.
Basically you need to use an OS that HP supports for that model:
» Microsoft Windows Vista
» Microsoft Windows Vista (64-bit)
» Microsoft Windows XP
» Microsoft Windows 2000