Are you nervous about de-lidding your expensive CPU?
The crappy thermal interface material (TIM) that Intel have used on their recent CPU's, severely hampers your overclock.
Removing the heat spreader that covers the CPU die with a razor blade is risky and dangerous.
Some put their CPU into a vice, then knock off the heat spreader with a piece of wood and a hammer.
How about de-lidding with an inexpensive tool that is made for the job?
Take a look and see.