2. Intel 875P + ICH5-R Architecture

Intel 875P NorthBridge
The Intel 875P chipset features support for an 800 MHz Front
Side Bus (FSB) and implements Intel Performance Acceleration
Technology (Intel PAT) with dual-channel DDR
400 memory configurations to get incredible performance from the
memory interface. Optimized to support the Intel Pentium 4
Processor with Hyper-Threading Technology,
the 875P chipset adds intelligence to help manage and prioritize
multiple threads received from the microprocessor.
This 875P chipset-based small form factor features the
Intel Communication Streaming Architecture
(CSA) offering a Dedicated Networking Bus interface, Hi-Speed USB
2.0, and Serial ATA. An enhanced AC97
audio implementation with dual independent DMA audio engines
delivers improved sound quality and new audio usage models. The
875P chipset helps to ensure that tomorrow's most demanding
applications will run optimally on Pentium 4 processor-based
platforms.
Southbridge integration
The ICH5-R brings excellent I/O capabilities such as 2 Serial
ATA headers with RAID striping or mirroring functionality.
Further, integrated 6-channel audio delivers 100dB plus surround
sound audio, while (8) USB 2.0 ports and FireWire 400 (from
VT6207) provide great connectivity.
BIOS Control
The XPC SB77G5 uses an enhanced Phoenix-Award BIOS providing
the user with optimum control over performance components. The
advanced chipset features, for instance, allows for fully
customizable memory timings. Several divisors are available to
support RAM that can't handle a 1:1 ratio during tweaked
performance.
Other important features of this BIOS include the PC health
status section. Here users can adjust Smart Fan settings, choosing
the optimum control environment to suit their needs. Further,
long-time XPC users will notice that this section has been
improved to include noise and temperature control settings.
On the performance-optimization front, the XPC SB77G5 supports
a multitude of frequency and voltage controls. The FSB is
adjustable in 1MHz increments all the way up to 355MHz. This
feature is complimented by a full-palette of DDR, AGP and CPU
voltage settings.
Silent X Technology
XPC SB77G5 has been enhanced with the latest Silent X
technologies. The Silent X concept is embodied in a number of
discreet Shuttle technologies, including: A 250W Silent X PSU, 4G
Integrated Cooling Engine (ICE) and Intelligently-engineered
airflow mechanics.
"Silent X is a world-class family of cooling and noise-reduction
technologies exclusive to the Shuttle XPC," said Jonathon Yi,
vice-president of product management, Shuttle. "The Silent X logo
is your assurance that Shuttle XPC's are 'Super Quiet, Super
Cool.'"
Integrated Cooling Engine (ICE) Module
The
Integrated Cooling Engine (ICE) included in the SB77G5 improves on
the previous XPC ICE design. The ICE module's thermal resistance
has been decreased to an amazing .16_C/W. This is less half the
thermal resistance of first generation XPCs and only one-third
that of Intel's BTX standard. Further, the heat exchange surface
area has been increased as have the number of radiator fins.
Lastly, Shuttle's 4G ICE sports a generous 92mm cooling fan to
quietly push more air out the back of the case.
The Integrated Cooling Engine uses convection cooling to
transfer heat away from the processor and other critical system
components. Copper tubing - coated in nickel and filled with
distilled water - efficiently channels heat away, providing
highly-effective processor and case cooling.
Smart Fan
To
further improve XPC thermal and acoustic performance, Shuttle
XPC's include Smart Fan functionality to intelligently monitor and
control the cooling fans. Smart Fan incorporates linear control
metrics to provide optimal cooling. Under normal conditions, Smart
Fan keeps the fan speed low, minimizing acoustic noise. When the
load increases, Smart Fan increases the fan speed to provide
optimal cooling. Better still, Shuttle's Smart Fan lets you choose
the desired temperature and fan speed to suite your ergonomic
needs.
As described above, the XPC SB77G5 features a new 92mm Smart Fan,
capable of shifting 50CFM (cubic feet per minute). This fan is
designed to spin relatively slowly, depending on the processor and
bus settings used.
250 Watt Power Supply
The SB77G5 features the Super Quiet, Super Cool - Silent X 250W
PSU. Designed specifically for the XPC, this PSU features all the
necessary cables to deliver optimized performance. Further, all
cables come made to length and preinstalled, making it easy for
users to setup and configure their XPC.
Tested in our acoustic lab from a distance of 50cm (many
competitors take measurements at 1M), this Shuttle Silent X 250W
PSU produces 32dB (or less) noise.
Intelligently Engineered Airflow
The
XPC SB77G5 features more air intake points designed to keep the
motherboard cool and stable. The chassis and underside of this XPC
feature strategically positioned intake points that channel cool
air across critical components. These intake points are
engineered!Xsize and position!Xto minimize noise. |