NEC DIRECTION SP B - SERVICE 1999, Service And Reference Manual

Page: 96 / 146

A-2 System Specifications
This section describes system specifications.
Processor
Microprocessor

350-MHz, 400-MHz, or 450-MHz Pentium II processor or
500-MHz Pentium III processor
Clock Rate
„
350 MHz internally, 100 MHz FSB
„
400 MHz internally, 100 MHz FSB
„
450 MHz internally, 100 MHz FSB
„
500 MHz internally, 100 MHz FSB
Processor Support
„
32-bit addressing
„
64-bit data
Primary Cache

32 KB of internal write-back cache on processor
Secondary Cache

512 KB of pipeline burst cache
Processor Mounting
„
Processor subsystem is inserted into slot 1 on the system board.
„
A 242-pin edge connector is implemented on the processor board for
system board installation.
„
Retention Mechanism (RM) is inserted over slot 1 to act as an insertion
guide and prevent movement of processor after subsystem mounting.
„
For thermal protection, a heatsink is supported by a Heat Sink Support
(HSS) which is attached to the system board.
Random Access Memory
Standard Random Access Memory (RAM)

32 MB to 384 MB of 100-MHz
SDRAM installed in industry-standard DIMM sockets on system board
Total Memory

support for up to 384 MB of high-speed PC100 SDRAM
DIMM type

gold-plated, dual in-line modules (DIMMs)
Expansion

expandable using the following modules:
„
4-Mbit by 64 (32-MB DIMM)
„
8-Mbit by 64 (64-MB DIMM)
„
16-Mbit by 64 (128-MB DIMM)