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The motherboard, also called the motherboard (mainboard), the system board or motherboard (systemboard) (motherboard); it installed in the chassis, is one of the most basic and most important components. Board is generally rectangular board, installed above the main circuit composed of a computer system , usually a BIOS chip <a href="http://www.nbpartlist.com/hp-g60-237nr-laptop-motherboard-iyuy.html">Replacement for HP G60-237NR Laptop Motherboard</a>, I/O control chip, a keyboard and a panel control switch interface, indicating lamp connectors, expansion slot, the motherboard and card DC power supply connectors and other components.
The BIOS chip is memory: a block shaped, there exist with the program for basic input output system with the motherboard. Can let the motherboard identification of various hardware, can also set the guide system, adjust the CPU FSB etc.. The BIOS chip can be written, which is convenient for users to update the version of the BIOS, in order to get better performance and support for the latest computer hardware, of course, the downside is that the motherboard will suffer as the CIH virus attacks.North and South Bridge chip: two chip is the north and South Bridge chip across the AGP <a href="http://www.nbpartlist.com/hp-g60-237nr-laptop-motherboard-iyuy.html">Replacement for HP G60-237NR Laptop Motherboard</a>, slots on both sides of the. Above the south bridge located in PCI slot; while the CPU slot next, be fin cover is Beiqiao chip. Chip group with Beiqiao as the core chip, in general, the motherboard name are named after Beiqiao's core name (such as P45 motherboard with P45 Beiqiao chip). Beiqiao chip is mainly responsible for handling CPU, memory, graphics cards among the three "traffic", because a large amount of heat, and heat sink. The south bridge chip is responsible for the data flow between the hard disk or other storage device and PCI.
The COM interface (serial): most motherboard provides two COM interface, respectively COM1 and COM2, <a href="http://www.nbpartlist.com/hp-g60-237nr-laptop-motherboard-iyuy.html">Replacement for HP G60-237NR Laptop Motherboard</a> printer LPT interface and COM interface function basically been eliminated is connected with a serial mouse and an external Modem device. COM1 interface I/O address is 03F8h-03FFh, the interrupt number IRQ4; COM2 interface I/O address is 02F8h-02FFh, the interrupt number is IRQ3. Thus the COM2 interface has priority over the response of the COM1 interface, now the market has been difficult to find on the interface products.