HP Workstation x2000 hp workstation x2000 - Technical Reference and Troublesho - Page 60

System Board The Input/Output Controller Hub 2 (82801BA) Enhanced Power Management The ICH2's power-management functions include enhanced clock control, local and global monitoring support for 14 individual devices, and various low-power (suspend) states. A hardware-based thermal management circuit permits software-independent entry points for low-power states. The ICH2 includes full support for the Advanced Configuration and Power Interface (ACPI) specifications. Crystal CS4299 Integrated PCI Audio Based on the earlier crystal audio controller, the CS4299 extends these features to include, among many other enhancements, PC'98 and PC'99 compliancy for multimedia desktops that require high-quality audio. Features of the CS4299 include: • AC'97 2.1 compatibility • Industry-leading mixed-signal technology • 20-bit stereo digital-to-analog converter and 18-bit analog-to-digital converter • High-quality pseudo-differential CD input • Mono microphone input • Analog line-level stereo inputs for LINE IN • Stereo line-level output • Compliance with Microsoft's PC'98 and PC'99 audio performance requirements The CS4299 introduces a new architecture that is different from the one used with the CS4280-CS4297 pair. 60 Chapter 2