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Nov 14 3:59 PM EST

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To: Richard Forsythe who wrote (491)	6/19/1997 2:37:00 AM
From: Paul Engel	of 990

Richard - Re: Slot 1 and Pentium II Upgrades. The Physical implementation of the Slot 1/SEC (Single Edge Connector) is an edge connector mounted on the motherboard - very similar, as you noted, to the bus expansion slots on most computers. The SEC module contains the CPU (Pentium II), Level 2 SRAM chips, and a cache tag ram/controller chip - all integrated on a small circuit board housed in a rectangular molded plastic cartridge. Upgrading from a slower Pentium II to a faster one involves removing the SEC module - sliding it out of the edge connector - just as the video cards you referred to. A new one can then be inserted into the slot. The limitations are that the motherboard components - chip sets, main memory, system clock speed (not CPU clock speed) do not get upgraded. Thus, adding a faster SEC module will improve the system performance , but it will NOT provide an overall 1.3X speed improvement if you replaced a 233 Pentium II module with a 300 MHz one. You will get improved performance due to higher CPU speeds and faster L2 cache access - but main memory speeds will remain unchanged. Paul

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