System Board Set Features; Pentium Iii Xeon Processor; System Memory; I/O Expansion Slots - NEC EXPRESS5800/120Md Series User Manual

System Board Set Features

The following subsections provide a description of the system board set features.

Pentium III Xeon Processor

Depending on system configuration, each system includes one or two Pentium III Xeon
processors. Each Pentium III Xeon processor is packaged in a Single Edge Contact
Cartridge (S.E.C.). The cartridge includes the processor core with an integrated 16 KB
primary (L1) cache, a secondary (L2) cache (256KB), thermal plate, and a cover. The
processor implements the MMX
significantly increases the speed of floating-point operations.
The processor external interface operates at a maximum of 133 MHz. The second-level
cache is located on the substrate of the processor cartridge. The cache includes burst
pipelined synchronous static RAM (BSRAM).

System Memory

The system board contains four 168-pin DIMM sockets. Memory is partitioned as four
banks of registered SDRAM DIMMs (PC133 compatible), each providing 72 bits of
noninterleaved memory (64-bit main memory plus ECC). Your system might include
from 64 MB to 4 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.

I/O Expansion Slots

The server's expansion capabilities meet the needs of file and application servers for
high performance I/O by providing a combination of PCI expansion slots.
Note: The factory standard default value (PnP O/S) of the Plug N
Play feature in your server is selected. The Windows 2000 operating
system requires that the PnP O/S feature be selected. To deselect it,
if your operating system requires this, the Installed O/S feature in the
Advanced Submenu of the BIOS Setup Utility described in Chapter 3
"BIOS Setup Configuration Settings" can be changed to "Other."
The system board has two 66 MHz PCI connector slots that can accommodate either a
32 or 64 bit PCI board (see Figure 1-9). The system board also has one 33 MHz PCI
connector slot that can accommodate either a 32 or 64 bit PCI board.
Note: The bus speed for the two 66 MHz PCI connector slots
(PCI 2 or PCI 3) is decreased to 33 MHz if a 33 MHz PCI board is
installed into connector slot PCI 4 or if a 33 MHz PCI board is
installed into either of the two 66 MHz PCI connector slots.
1-16 System Overview
technology and the processor's numeric coprocessor
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