It is now working fine. Thanks for the very useful info.

Carey Frisch [MVP] wrote:
> Changing a Motherboard or Moving a Hard Drive with XP Installed
> http://www.michaelstevenstech.com/moving_xp.html
>
> How to Perform a Windows XP Repair Install
> http://www.michaelstevenstech.com/XPrepairinstall.htm
>
> [Courtesy of MS-MVP Michael Stevens]
>
> --
> Carey Frisch
> Microsoft MVP
> Windows - Shell/User
> Microsoft Community Newsgroups
> news://msnews.microsoft.com/
>
> -------------------------------------------------------------------------------------------
>
> "kilowatt" wrote:
>
> | I am trying to replace an old hard drive with another hard drive that
> | already has XP installed. The old machine I got the hard drive from
> | had onboard video. The new machine has a Gforce 2 and it was working
> | fine with the old hard drive. When I try to boot with the new drive it
> | starts loading Windows and then I can see a flash of a blue error
> | screen and it just reboots again.
> |
> | This happens if I pick normal, last known good, or safe mode.
> |
> | I can take out the video card and the hard drive and plug it back into
> | the old mobo I am trying to replace and they work. I suspect that XP
> | is expecting the onboard video but shouldn't safe mode at least let me
> | boot Windows?