WAFER-LX MotherboardPage 202.16 Operating Temperature and Temperature ControlThe maximum and minimum operating temperatures for the WAFER-LX are listed below. Minimum Operating Temperature: 0ºC (32°F) Maximum Operating Temperature: 60°C (140°F)A cooling fan and heat sink must be installed on the CPU. Thermal paste must besmeared on the lower side of the heat sink before it is mounted on the CPU. Heat sinksare also mounted on the Northbridge and Southbridge chipsets to ensure the operatingtemperature of these chips remain low.2.17 Audio CodecThe WAFER-LX has an integrated RealTek ALC203 codec. The RealTek ALC203 is a20-bit DAC and 18-bit ADC full-duplex AC'97 2.3 compatible stereo audio CODECdesigned for PC multimedia systems, including host/soft audio, and AMR/CNR baseddesigns. The codec meets performance requirements for audio on PC99/2001 systems Single chip with high S/N ratio (>100 dB) Meets performance requirements for audio on PC2001 systems Meets Microsoft WHQL/WLP 2.0 audio requirements 20-bit DAC and 18-bit ADC resolution 18-bit Stereo full-duplex CODEC with independent and variable sampling rate Complies with AC'97 2.3 specificationso LINE/HP-OUT, MIC-IN and LINE-IN sensingo 14.318 MHz -> 24.576 MHz PLL saves crystalo 12.288 MHz BITCLK input can be consumedo Integrated PCBEEP generator to save buzzero Interrupt capabilityo Page registers and Analog Plug & Play Support of S/PDIF out is fully compliant with AC'97 rev2.3 specifications Three analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD,AUX High quality differential CD input Two analog line-level mono input: PCBEEP, PHONE-IN Supports double sampling rate (96 KHz) of DVD audio playback
