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Processor
Each Pentium II processor is packaged in a Single Edge Contact (S.E.C.) cartridge. The cartridge
includes the processor core with an integrated 16 KB primary (L1) cache; the secondary (L2)
cache; a thermal plate; and a back cover.
The processor implements the MMX
the 8086, 80286, Intel386
processor's numeric coprocessor significantly increases the speed of floating-point operations and
complies with ANSI/IEEE standard 754-1985.
Each processor cartridge connects to the system board through a 242-pin edge connector. The
cartridge is secured by a retention module attached to the system board. Depending on
configuration, your system may have one or two processors.
The processor external interface is MP-ready and operates at 100 MHz. The processor contains a
local APIC section for interrupt handling in MP and UP environments.
The second-level cache is located on the substrate of the S.E.C. cartridge. The cache includes
burst pipelined synchronous static RAM (BSRAM). The L2 cache is offered in 512 KB
configurations only, with error correcting code (ECC) that operates at half the core clock rate.
Memory
Only 100 MHz PC/100 ECC SDRAM is supported by the system board. Memory is partitioned as
four banks of SDRAM DIMMs, each providing 72 bits of noninterleaved memory (64-bit main
memory plus ECC):
Install from 32 MB to 1 GB of memory, using registered DIMMs.
x
Install from 32 MB to 512 MB of memory, using unbuffered DIMMs.
x
Memory should be added in order from slot 1 to slot 4.
NOTE
Do not mix registered and unbuffered memory. Non ECC memory maybe
installed but is not recommended. Mixing Non-ECC memory and ECC
memory causes all ECC features to be disabled.
Dual address strobe (RAS) signals are provided for each DIMM. When single-banked DIMMs are
used, one of the RAS lines is connected to both 36-bit "halves" of the DIMM. When double-
banked DIMMs are used (known as Dual RAS), both RAS lines are connected to two 36-bit
"quarters" of the DIMM.
12
™
technology and maintains full backward compatibility with
™
™
, Intel486
, Pentium, Pentium Pro and Pentium II processors. The
System Description
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