DFI 748-AL User Manual page 8

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Introduction
Expansion Slots
The system board is equipped with 1 AGP slot and 5 PCI slots.
AGP (Accelerated Graphics Port)
AGP is an interface designed to support high performance 3D
graphics cards. It utilizes a dedicated pipeline to access system
memory for texturing, z-buffering and alpha blending. The univer-
sal AGP slot supports AGP 8x with up to 2132MB/sec. bandwidth
and AGP 4x with up to 1066MB/sec. bandwidth for 3D graphics
applications. AGP in this system board will deliver faster and bet-
ter graphics to your PC.
Onboard Audio Features
• C-Media 6-channel codec
• AC'97 2.2 extension compliant codec
®
• Supports Microsoft DirectSound/DirectSound 3D
• AC'97 supported with full duplex, independent sample rate
converter for audio recording and playback
• S/PDIF-in/out interface
• 6-channel audio output
S/PDIF
S/PDIF is a standard audio file transfer format that transfers digital
audio signals to a device without having to be converted first to
an analog format. This prevents the quality of the audio signal
from degrading whenever it is converted to analog. S/PDIF is usu-
ally found on digital audio equipment such as a DAT machine or
audio processing device. The S/PDIF connector on the system
board sends surround sound and 3D audio signal outputs to am-
plifiers and speakers and to digital recording devices like CD re-
corders.
6-channel Audio
The 6-channel audio output function is supported by using the 4-
channel connector, the audio jacks at the rear panel and configuring
the audio driver. Please refer to chapters 2 and 4
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