6
Microprocessor
The motherboard supports dual Pentium II processor’s. The processor’s VID pins
automatically program the voltage regulator on the motherboard to the required
processor voltage. The motherboard currently supports processor’s that run
internally at 233, 266, 300, 333, 350 and 400MHz all with 512 KB second-level
cache. The processor’s implements MMX ™technology and maintains full backward
compatibility with the 8086, 80286, Intel386 ™, Intel486 ™, Pentium, and Pentium
Pro processors. The processor’s numeric coprocessor significantly increases the
speed of floating-point operations and complies with ANSI/IEEE standard 754-1985.
Microprocessor Packaging
The Pentium II processor is a Single Edge Contact (SEC) Cartridge that connects to
the motherboard through Slot 1, a 242-pin edge connector. The Pentium II
processor S.E.C. Cartridge consists of:
•
Processor card including the processor core and the second-level cache:
burst pipelined synchronous static RAM (BSRAM)
•
Thermal
plate
•
Back
cover
When the Pentium II processor’s are mounted into the Slot 1 connectors, they are
secured by a retention mechanism attached to the motherboard.
Second Level Cache
The second-level cache is located on the substrate of the SEC cartridge. The cache
includes burst pipelined synchronous static RAM (BSRAM). There are four BSRAM
components totaling 512 KB in size. All supported onboard memory can be cached.
Processor Upgrades
The motherboard can be upgraded with Pentium II processors that run at higher
speeds. When upgrading the processor the USER must manually configure the
processor speed’s.
