You should be able to edit the bios registers for ANY motherboard with WPCredit and force CPU HLT to kick in. Not sure what register and value for NForce2. I'll google it now.
//edit: I think this page might explain the registers:
http://gathering.tweakers.net/forum/...sages/743765/8
but I can't read it without the Swedish chef muppet voice in my head making me laugh.
An english alternative:
http://www.xtremesystems.org/forums/...threadid=11026
Not sure about the 4th order polynomial's necessity either:
How much do numbers change with a linear eqn or second order polynomial for calibration?