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To: Richard L. Williams who wrote (47956)	2/17/1998 4:57:00 AM
From: Paul Engel	Respond to of 186894

Richard - Re: " popping the CPU from a PII/266 into a new MB...the 440BX will simply run at 66mhz then? " I think there is some confusion here. A "440BX Motherboard" will be set up to run at 100 MHz - by most manufacturers. Plugging a 0.35 micron Pentium II/266 MHz with the intent of running the chip at this same internal CPU clock speed of 266 MHz, but with an external system clock of 100 MHz, would require a 2.66 clock multiplier on the Pentium II chip - which does not exist! The Pentium II 266 Mhz has a clock multiplier (ratio of Internal CPU clock to external system clock) of 2, 3.5, 4 and 4.5. So, you would be out of luck -- unless you (I hate to use the word) OVERCLOCKED the Pentium II to 300 MHz by using the 3X multiplier. Would this work? Maybe and even possibly! But, it would not be without RISK! That particular Pentium II 266 may or may not work properly at 300 MHz. You would have to investigate this situation with the MB manufacturer and possibly Intel to see if the 440 BX will work with the older Pentium II and what downside risk you might incur. But, it's an interesting thought. If it worked (IF) you could get more CPU speed (266 --> 300) as well as faster external memory accesses (100 MHz). Paul