what's the FSB in PC?

Answer 1

Front Side Bus

In computers, the front side bus (FSB) or system bus is a term for the physical bi-directional data bus that carries all electronic signal information between the central processing unit (CPU) and other devices within the system such as random access memory (RAM), AGP video cards, PCI expansion cards, hard disks, the memory containing the system BIOS, etc.

Answer 2

FSB is an acronym for Front Side Bus, which is system data bus that connects the CPU to other PC components such as RAM, video cards, disk drives and so on.

In most modern computers the FSB is actually the connection between the CPU core and a motherboad chipset and the connection to other devices uses secondary data buses connected to the chipset. These other buses run at speeds that are a multiple of the FSB speed.

The motherboard chipset is usually divided into a Northbridge and a Soutbridge, with the Northbridge typically handling communication with RAM and AGP video cards while the Southbridge handles communication with all other devices, including PCI and USB bus devices, the PCs real time clock and so on.

Answer 3

Front Side Bus: The main path that links the memory and all of the other devices on your motherboard to the CPU. The speed of the FSB is expressed as a frequency (it's clock speed) and commonly appears at 333,400,800 and 1066MHz. it's what is also called as an external clock.
Overclockers often manipulate this value to increase the speed at which their processor runs. a 400 Mhz FSB X 6.0 clock multiplier = 2400Mhz processor.