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Pentium II Processor
The system board includes a Pentium II processor 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
technology and the processor's numeric coprocessor significantly increases the speed of floating-
point operations.
The processor external interface operates at 100 MHz. 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.
System Memory
The system board contains three 168-pin DIMM sockets. Memory is partitioned as three 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 768 MB 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 local bus and ISA connectors.
The system board has two full-length ISA bus connectors. One of the connectors shares a chassis
expansion slot with a PCI connector. ISA features:
n Bus speed up to 8.33 MHz
n 16-bit memory addressing
n 8- or 16-bit data transfers
n Plug and Play ready.
System Overview 1-7
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Troubleshooting
