maybe for the people new to the sport of overclocking heh it is neccessary to test every 5-10 mhz. but i say once you are a little wiser, you can push it up till it wont boot, then back off...THEN stress test. at least once you learn the basics. i'll raise mine 50-60 mhz at a time. sometimes more, after it wont boot....re-set the cmos, enter bios, and raise it up. ie no boot at 340, reset cmos, set clock to 320 and go. i guess it really depends on why it didnt boot... coulda been too much clock, maybe too much ram speed, maybe not enough voltage. so never mind. but i really think that 5-10mhz is ok if you are absolutely clueless. if not, i think it would be okay to run basic tests and make bigger jumps in clock speed before running the big 8-12 hour stability test.