The NH82801HEM, often associated with the QM73 Express Chipset, is a Mobile I/O Controller Hub (ICH) from Intel. It is a crucial component in laptop and embedded systems that connects the CPU to slower peripherals. The QM73 Express Chipset incorporates the Graphics Memory Controller Hub (GMCH) and the ICH, providing a comprehensive solution for mobile platforms. Specifically, the NH82801HEM handles I/O functions.

Applications

• Laptops: Provides I/O connectivity for various laptop functions, including USB, audio, and storage.
• Embedded Systems: Used in industrial computers and embedded devices that require a range of I/O interfaces.
• Mobile Workstations: Supports high-performance mobile workstations requiring extensive peripheral connectivity.

Features

• PCI Express Support: Provides PCI Express lanes for connecting high-speed peripherals such as graphics cards and SSDs.
• USB Ports: Offers multiple USB 2.0 ports for connecting USB devices.
• Serial ATA (SATA) Support: Supports SATA interfaces for connecting hard drives and solid-state drives.
• High Definition Audio (HDA): Enables high-quality audio output and input.
• LPC Interface: Provides a Low Pin Count (LPC) interface for connecting legacy devices such as Super I/O chips.
• Integrated LAN Controller: Integrates a LAN controller for Ethernet connectivity (in some implementations).
• Power Management Features: Supports advanced power management features to optimize power consumption in mobile devices.

Benefits

• Comprehensive I/O Connectivity: Provides a wide range of I/O interfaces for connecting various peripherals.
• High Performance: PCI Express support enables high-speed data transfer for demanding applications.
• Power Efficiency: Advanced power management features extend battery life in mobile devices.
• Integrated Solution: Reduces the need for external components, simplifying system design and lowering costs.

Technical Specifications

The NH82801HEM/QM73ES typically supports Intel Core 2 Duo and Core 2 Extreme mobile processors. It interfaces with the processor via the Direct Media Interface (DMI). The chipset supports DDR2 and DDR3 memory technologies, depending on the specific implementation. The device provides various expansion slots, including PCI Express x16 for graphics and multiple PCI Express x1 slots for other peripherals. It generally has 6 SATA ports supporting RAID configurations. The audio subsystem is typically Intel High Definition Audio, delivering multi-channel sound output. The ICH also manages the system's BIOS and firmware.