IMBA-9454 MotherboardPage 17 Complies with System Management Bus (SMBus) Specification, Version 2.0 Supports Audio Codec ’97 (AC’97) Revision 2.3 Supports Intel® High Definition Audio Contains Low Pin Count (LPC) interface Supports Firmware Hub (FWH) interface Serial Peripheral Interface (SPI) for Serial and Shared Flash 1.05 V Core Voltage Intel® High Definition Audio Interface Intel® Active Management Technology Intel® Quick Resume Technology Support2.6.2 Intel ® ICH7 Audio Codec ’97 ControllerThe Audio Codec ’97 (AC’97) controller integrated into the ICH7 complies with AC’97Component Specification, Version 2.3. The AC’97 controller is connected to the onboardaudio connector. The audio connector is connected to an optional 5.1 channel or 7.1channel audio kit with an embedded AC’97 audio codec. The AC’97 controller supports upto six PCM audio output channels. Complete surround sound requires six-channel audioconsisting of: Front left Front right Back left Back right Center Subwoofer2.6.3 Intel ® ICH7 IDE InterfaceThe integrated IDE interface on the ICH7 southbridge supports two IDE hard disks andATAPI devices, PIO IDE transfers up to 16MB/s and Ultra ATA transfers of 100MB/s. Theintegrated IDE interface is able to support the following IDE HDDs: Ultra ATA/100, with data transfer rates up to 100MB/s Ultra ATA/66, with data transfer rates up to 66MB/s Ultra ATA/33, with data transfer rates up to 33MB/s