I think you're more likely to screw up your CPU :p

I'm not sure if it were the Pentium 4's, but some Intel CPU's were very sensitive to high voltages because of a chemical process starting at a certain threshold (which of course kills the cpu :p )

//edit: Sudden Northwood Dead Syndrome (SNDS) it was

Not for short sessions, no worries about that.

Use a thin wire of "achterruitontdooierherstellerskit" :)

or silver paint & fine brush :)