Select the details of the computer motherboard can not be ignored

Computer fans who are used to computer will know that the computer motherboard is like a human brain, occupying a very important position. The motherboard is an important part of the computer. Its quality determines the computer to a certain extent. Good or bad, so many people will be distressed how to choose a computer motherboard? What kind of motherboard is good? How to buy it correctly? Don't worry, this article will tell you how to choose, easily solve your choice. Purchase troubles.

First, what is the motherboard? The composition of the motherboard?

The motherboard is a multi-layer printed circuit board consisting of large-scale integrated circuits, which is the largest board in the mainframe. Its function is to provide a high-speed communication path to various computer components such as CPU, memory, hard disk, graphics card, etc., so that the various components of the computer can work in harmony and stability.

The structure of the motherboard is as follows: the motherboard is mainly composed of PCB substrate, CPU socket, power socket, motherboard chipset, BIOS chip, memory slot, AGP bus expansion slot, PCI slot, IDE interface, motherboard Jumper, SATA interface and various peripheral interfaces.

Second, how to choose a computer motherboard?

Because almost all accessories must be connected to the motherboard to work properly, the motherboard is the basis for a stable operation of a computer. Therefore, the purchase of a quality-qualified motherboard plays a vital role in the future operation of the computer.

Because judging whether the quality of the motherboard is qualified or not involves too much professional knowledge such as circuit design, it is inevitable that there will be a feeling of starting. Xiaobian will introduce a few simple and practical motherboard purchasing techniques for you.

One of the computer motherboard choices: see insurance

Mainly refers to whether there is a sufficient amount of insurance near the motherboard's I /O interface. The role of insurance is to improperly hot-plug external devices such as keyboards, mice, monitors, etc. or sudden increase in external current, such as lightning strikes, can automatically fuse to protect the motherboard. And if not, it is easy to cause the motherboard to burn.

From the appearance point of view, the common insurance on the motherboard is green or gray flat, similar to the chip capacitor. In general, a qualified motherboard will have such insurance near the keyboard, mouse, and USB interface. The high-end motherboard will also have such insurance near the SATA hard drive interface.

Of course, some motherboards have reduced the amount of insurance used to reduce production costs, leaving a noticeable empty soldering position on the motherboard. The security risks caused by the use of such a motherboard are obvious. If we choose one or two such insurances near the I/O interface when selecting the motherboard, for such a motherboard, from a security point of view, it is better to stay away from it. .

Computer motherboard selection 2: see power supply

A motherboard can work stably, power supply is the most important factor. How to judge the CPU power supply of the motherboard is not very complicated. In general, single-phase power is composed of an inductor, two capacitors, and several FETs. Of course, some motherboards will increase the number of capacitors in single-phase power supply, but the judgment method is basically the same, that is, the number of coils, the motherboard has several coils that are several phases of power supply. As far as materials are concerned, almost all motherboards currently use fully enclosed inductors and solid capacitors in the CPU power supply. For the average consumer, the difference in the daily use of different brands or models of these materials is not obvious.

One more thing to note is that there are several FETs in a phase supply. From the appearance, the FET is the patch in the CPU power supply. The greater the number of FETs in a single-phase supply, the smaller the current shared by each FET, and the more stable the power supply to the CPU. In general, a good motherboard, the CPU should have at least three FETs in each phase of the power supply circuit.

Tips: When the computer is running for a period of time, you can use a thermometer to measure the temperature of the FET. If it exceeds 75 °C, it means that the number of FETs is insufficient, and the current of a single FET is over. Large causes a higher calorific value. At this time, we need to add heat sinks to the FET or even install a fan to help dissipate heat.

At present, some motherboards have streamlined the power supply of these two phases, leaving only the one responsible for 1.8V, while the 3.3V one relies directly on the power supply. The power supply output voltage is obviously inferior in stability. Such a motherboard has less stability (such as four) or overclocking, and the stability is not as good as that of a two-phase power supply.

Computer motherboard selection three: see the details

For a good motherboard, it is also very convenient to use, and this depends mainly on the details of the motherboard.

First, look at the location of the power outlet. In general, the power sockets of the motherboard are mostly at the edge of the memory slot. The biggest benefit of this design is that the user can easily organize the power cord. Some motherboards design the power supply slot near the I/O interface of the motherboard, so that the power cable of the motherboard must be plugged in above the CPU heatsink. Not only is it inconvenient, but also a thick power cord will affect the formation of the air duct inside the chassis, which will affect the overall heat dissipation inside the chassis.

Secondly, it depends on the location of the graphics card slot and the reserved space. The main reason for this is that the current mainstream graphics card heatsinks are getting bigger and bigger, and the dual-slot heatsinks are almost standard. In this case, if the graphics card slot is next to the PCI slot, then the PCI slot cannot be used. The space behind the well-designed motherboard graphics card slot will be large, and most of them will be PCI-E1× the slot is designed below the graphics card slot, and will not affect other accessories due to the excessive graphics card. In addition, some motherboards support two separate graphics cards working at the same time, and the space between the two graphics card slots is too small, which is not conducive to the heat dissipation of the graphics card.

In the small article, I introduced the computer motherboard's several precautions in detail from three aspects: power supply, insurance and details. I will learn quickly and do not need to buy a computer motherboard next time. Worried. With this in mind, the seller will think that you are a layman and you will not be fooled.