worked for me, but some others have done a complete new install.
Use "Repair Install" to Change MOBO/CPU
Before powering down place the OS/CD in the CD/ROM
Make sure the BIOS is set to boot from the CD/ROM as first boot.
Change the MOBO/CPU
Power back on, make sure it boots from the cd and not the HDD
Follow the instructions for the Repair Install.
Load the new MOBO drivers
Note: No method guarantees a clean change-over to a new MOBO except a clean install.
1=Set BIOS to boot from the CD/ROM as first boot device, With OS/CD in the drive restart the computer.
2=When the prompt to "Press any key to boot from CD/ROM appears (Do so now as you have only seconds).(Ignore when prompt appears on any reboot)
3=Windows setup, Loads files.
4=You will see Windows XP home or Pro setup.
5=To setup windows press "Enter."
6=Press F8 to accept license.
7=To repair selected Windows Installation press "R."
8=Copies files to the Hard drive.
9=Computer will Re-Boot
10=follow the on-screen instructions.
11=Enter the "product Key" (Note- It is possible to enter a different product key from the one that was used to install the OS but you will may run into Licensing problems with MS if you need to re-activate.
12=The computer may re-boot again during the install, but do not use "the press any key" command at the prompt or you get to do it all over again.
13=Follow on screen instructions.
Can I use my exisiting harddrive, loading with my files and programs, with a new motherboard and cpu, then add new drivers for that board or do I need to start with a clean installation? I am using XP professional and I do not want to spend hours reloading programs.