Here's a look at how our particular P3-600 CPU faired in the tests, remember this is only a guide as your own results will possibly vary:

6.0 x 100MHz	=	600MHz	=	100% Pass
6.0 x 103MHz	=	618MHz	=	100% Pass
6.0 x 105MHz	=	630MHz	=	100% Pass
6.0 x 110MHz	=	660MHz	=	100% Pass
6.0 x 112MHz	=	672MHz	=	Post successful, 
					Win98 failed to boot 
					without multiple retries

6.0 x 115MHz 	=	690MHz	=	Failure to POST
6.0 x 117MHz	=	702MHz	=	Failure to POST

For us, 660MHz (6.0 x 110MHz) was the maximum threshold that our P3-600 CPU would function reliably at. This is disappointing as the 110MHz FSB speed option is only available on a few newer mainboards, meaning that if you own an Abit BX6 R2.0 mainboard, for example, you'll have to shoot for 6.0 x 112MHz which we weren't able to obtain with stability.

We utilized both the Intel retail heatsink/fan option that comes equipped on all retail P3-600 CPUs as well as a custom made cooling solution that we put together from a few spare fans and large heatsinks. Our cooler was only moderately more successful at keeping the P3-600's temperature lower than the already strong degree of cooling offered by the Intel unit. We achieved a lower temperature that equaled approximately 7 - 8 degrees F than the Intel unit, however it wasn't enough to allow multiple successful bootups into Win98 at 672MHz.