Unless the two motherboards are *identical* there is good possibility
of serious problems if you do not prepare properly for the change.

Best method is to boot the computer one last time with the old
motherboard.  Use Start - Run Regedit and expand the
HKEY_LOCAL_MACHINE folder.  Select it and then use File - Save to save
the contents to a .REG file on your desktop or in a readily accessible
location on your hard drive.  This is a backup just in case things go
bloooey.

Now use Edit - Delete to remove the entire Enum folder from the
registry.

Immediately shut down the computer and do the motherboard swap.

When you start up the computer it will redetect all of the computer
hardware and load the appropriate drivers and configuration settings
for what is actually present.

Several restarts will probably be necessary to complete the hardware
identification.

Good luck

Ron Martell     Duncan B.C.    Canada