芯片组（Chipset）是主板的核心组成部分，按照在主板上的排列位置的不同，通常分为北桥芯片和南桥芯片。北桥芯片提供对CPU的类型和主频、内存的类型和最大容量、ISA/PCI/AGP插槽、ECC纠错等支持。南桥芯片则提供对KBC（键盘控制器）、RTC（实时时钟控制器）、USB（通用串行总线）、Ultra DMA/33(66)EIDE数据传输方式和ACPI（高级能源管理）等的支持。其中北桥芯片起着主导性的作用，也称为主桥（Host Bridge）。 -Chipset (Chipset) is a core component of the motherboard, according to the arrangement of the motherboard is located, is usually divided into Northbridge and southbridge chips. North Bridge chip to provide the type and frequency of the CPU, memory type and maximum capacity, ISA/PCI/AGP slots, ECC error correction support. Southbridge chip provides on KBC (keyboard controller), RTC (real time clock controller), USB (Universal Serial Bus), Ultra DMA/33 (66) EIDE data transmission and ACPI (Advanced Energy Management) and other support . North Bridge chip, which plays a leading role, also known as the main bridge (Host Bridge).