Dell PowerEdge 2300, Service Manual

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System Overview 1-1
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The Dell
®
PowerEdge
®
2300 systems are high-speed, upgradable, server
systems that use the Intel
®
Pentium
®
II family of microprocessors with
MMX
™
technology. PowerEdge 2300 systems incorporate the high-
performance PCI local bus as well as the ISA expansion bus.
The systems have been designed for better serviceability and increased reli-
ability. The PowerEdge 2300 systems are freestanding or can be rackmounted
for integrating your servers. The microprocessor(s) are mounted in modules on
the system board, which allows for greater heat dissipation. Contact Dell for
information about Dell-supported microprocessor upgrades.
PowerEdge 2300 systems can have one or two Pentium II microprocessors.
The microprocessor contains a built-in clock multiplier circuit, which increases
the internal operating frequency to a multiple of the system clock frequency.
The microprocessor has an internal operating frequency of 333 MHz and an
external operating frequency of 66 MHz, or an internal operating frequency of
350 or 400 MHz and an external operating frequency of 100 MHz.
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In addition to the standard features found in a traditional personal computer,
Dell PowerEdge 2300 systems include the following new and/or advanced
features:
‡
512 KB of L2 cache memory internal to each Pentium II microprocessor
module
‡
64 MB of 72-bit-wide, unbuffered, main memory, upgradable to 512 MB or
to 1 GB using 256-MB registered SDRAM DIMMs
‡
Memory ECC feature built into the memory controller on the system board
‡
Advanced combination ISA and PCI expansion subsystems
‡
Four PCI and two combination ISA and PCI expansion-card slots
‡
Integrated VGA-compatible AGP video subsystem with 2 MB of SGRAM
standard
‡
BIOS in upgradable flash memory attached to the ISA bus
‡
Integrated super I/O controller, attached to the ISA bus, that controls a
bidirectional parallel port, two serial ports, and the diskette drive interface