Why you so afraid to set minimal 1.45V on 45nm CPU, that can be set by old revision of P5W? With vdrop really it`s only about 1.41v. It`s not so high, due to Intel specs they say about 1.45V as maximal vcore on Wolfdale and Yorkfield (it`s real 1.45V, so it`s about 1.49V if you set on P5W). Many retail vendors sell factory overclocked systems even with 1.5-1.6V clocked QX9650. And also to overclock 45nm CPU just over 4GHz often needed about 1.5V. My E8500 works at 1.4V at 4GHz and at 1.5V at 4.2GHz on P5W. I think better to change to LGA1366 board this winter, then to change from old P5W revision to newer or to other X38 or similar board.