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To: Barry A. Watzman who wrote (46226)1/22/1998 12:55:00 PM
From: Paul Engel  Read Replies (2) | Respond to of 186894
 
Barry - Re: 440 BX/100 MHz and existing Pentium II's.

The existing Pentium II's support the following clock multipliers (System Clock-to-CPU-Core-Clock frequency):

1 to 2 (2x)
1 to 4 (4x)
2 to 7 (3.5x)
2 to 9 (4.5x)

Thus, using the existing 0.35 micron Pentium II and a 100 Mhz 440BX, you can attempt to run these "older" chips at 200 Mhz(not much fun), 350 MHz, 400 MHz and 450 MHz.

The 350 MHz, 400 MHz and 450 MHz are all currently above the rated speeds for these chips.

However, if you recall, Intel demonstrated the ability of selected units of these older Pentium II's to run at up to 450 MHz WITH SPECIAL EXTERNAL WATER COOLING techniques.

So in principle, the answer is yes, PROVIDED special cooling precautions are made.

Note - this may be of interest to the Fuchi's of the world. Running these chips at such speeds would violate Intel's warranty conditions, I'm sure.

Paul