Prescott Pentium 4 C0 can hang SP 2 install
 

VOLE'S AUTO UPDATE warned me that if you are using a Pentium 4 or a Celeron D based on the Prescott C-0 core that a Windows XP SP 2 instalation might hang. This occurrs on a limited number of systems running BIOS files without support for this CPU

http://www.theinquirer.net/?article=18931