Unfortunately, since the bus is in an all-or-nothing situation, the CPUs must take turns.
#Change motherboard bus speed full
Someone is sure to point out the fact that CPUs almost never need the full bandwidth of the bus. In a dual-CPU system, this halves the available bandwidth and quarters it for a quad CPU board. For more information on this subject, see my Daily Drill Down, " Motherboard chipsets-the good, the bad, and the ugly."Īt the simplest level, Intel’s GTL+ FSB provides a single connection to the North Bridge shared between all CPUs. See below for details on the FSBs in use by Intel and AMD. The Front Side Bus is the interface between the CPU and the motherboard, specifically the North Bridge/Memory Controller Hub. These busses typically are used in conditions where data throughput isn’t critical.
![change motherboard bus speed change motherboard bus speed](https://edgeup.asus.com/wp-content/uploads/2020/07/x490-feature-2-696x464.jpg)
This can cause obvious performance problems.
#Change motherboard bus speed serial
Serial devices are tied together in, well, a series the last one has to talk “through” the first one. On a parallel bus, all devices have their own interface to the bus, which is the norm. There are two types of bus communications, serial and parallel. The device-management specification indicates the maximum number of supported devices and the difficulty of configuring them. An 8-bit bus (1-byte data width) that operates at a cycle rate of 1,000 MHz (1,000,000 times per second) can transfer 8 Mbps (1 MBps). The data width and cycle rate are used to determine the bandwidth, or the total amount of data that the bus can transmit. The differences between computer busses break down into these categories:
![change motherboard bus speed change motherboard bus speed](https://www.techpowerup.com/img/TP91BYVkriSyAMVx.jpg)
The motherboard’s bus system has been compared to a mass transit system that carries data over many routes through the city (your motherboard) and uses different types of vehicles (fast and slow, and small and large) to carry it. Typically, each bus has a uniquely shaped interface to prevent you from damaging your devices by plugging them into the wrong ports. The word interface refers not only to the physical port the devices plug into, but to the electrical operating parameters and the communication format as well. Each device will have an access point to the bus using a particular kind of interface. For example, a PCI device, such as an audio card, will send its data through the PCI bus. In this Daily Drill Down, I’ll discuss the different busses currently available and in use to help you understand exactly what your equipment is capable of.Ī bus is the path through which a device sends its data so that it can communicate with the CPU and/or other devices. A computer will have a list of busses as long as your arm. These days, pick up any electronic device and you’ll find some acronyms on the box describing the various busses it supports.