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Intel Desktop Board DP55SB Product Guide
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Intel
P55 Express Chipset
The Intel P55 Express Chipset consists of the Intel P55 Express Platform Controller
Hub (PCH). The PCH is the centralized controller for the board's I/O paths.
Audio Subsystem
The onboard audio subsystem consists of the following components:
®
•
Intel
P55 PCH
•
Realtek ALC889 codec
The subsystem has the following headers and connectors:
•
Back panel audio connectors, including S/PDIF in and out optical ports
•
High Definition Audio front panel header that provides mic in and line out signals
for front panel audio connectors
•
An onboard S/PDIF header
The audio subsystem supports the following features:
•
Dolby* Home Theater certification
•
A signal-to-noise (S/N) ratio of 95 dB
•
Independent multi-streaming 8-channel (7.1) audio (using the back panel audio
connectors) and 2-channel audio (using the High Definition Audio front panel
header)
LAN Subsystem
The LAN subsystem includes:
•
Intel PCH
•
Intel 82578DM Gigabit (10/100/1000 Mb/s) Ethernet LAN controller
•
RJ-45 LAN connector with integrated status LEDs
The subsystem features:
•
CSMA/CD protocol engine
•
LAN connect interface between PCH and the LAN controller
•
PCI bus power management
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