NEC MC2400 - Manual (Page 25)

System Overview 1-9
Pentium Processor
Depending on system configuration, each system includes one or two Pentium
processors. Each Pentium processor is packaged in a Single Edge Contact (S.E.C.)
cartridge. or Single Edge Contact Cartridge Version 2 (SECC2). The cartridge includes
the processor core with an integrated 16 KB primary (L1) cache; the secondary (L2)
cache; a thermal plate (not included in the SECC2); and a back cover. The processor
implements the MMX
™ technology and the processor’s numeric coprocessor
significantly increases the speed of floating-point operations.
The processor external interface operates at a maximum of 100 MHz. The second-level
cache is located on the substrate of the processor 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).
System Memory
The system board contains four 168-pin DIMM sockets. Memory is partitioned as four
banks of SDRAM DIMMs, each providing 72 bits of noninterleaved memory (64-bit
main memory plus ECC). Your system may include from 32 MB to 1 GB of memory,
using up to four DIMMs.
System memory begins at address 0 and is continuous (flat addressing) up to the
maximum amount of DRAM installed (exception: system memory is noncontiguous in
the ranges defined as memory holes using configuration registers). The system
supports both base (conventional) and extended memory.