After you decide which chipset to choose, it is crucial to choose a motherboard that is suitable for you. When choosing a motherboard, you should not just look at the featured technologies in advertisements and promotions. You should start with the basics of the motherboard. That is to say, the quality of the motherboard. A high-quality motherboard will naturally improve its performance, while some motherboards with poor quality cannot achieve high performance.

1. Look at the PCB (motherboard body)

Looking at the PCB does not mean that readers should look at the color of the PCB when looking at the motherboard, but to look at the quality and gloss of the PCB. And thickness, etc. Generally, a good motherboard has certain requirements in the selection of PCB. First of all, if the thickness of PCB is designed according to the public version, the thickness will generally be around 3~4MM, which is often referred to as 6 layers. PCB board, but the only disadvantage of doing this is that it will increase in price, so many motherboard manufacturers will design the wiring and layout of the motherboard by themselves, so we generally use motherboards with 4 PCB boards. Readers are contacting After getting the motherboard, you can check whether the four sides of the PCB are smooth and have no burrs. If you cannot meet this basic requirement, it only means that the motherboard manufacturer has technical problems. It is not recommended to purchase such a motherboard.

2. Look at the parts

I often see some articles writing: "If there are tall green capacitors standing near the CPU, this is a good motherboard." This statement is wrong. , the capacitor near the CPU should indeed be bigger, the better, but this large is not just the capacity, but the capacity of the capacitor, and I would like to add that many motherboard manufacturers now use capacitors that are not based on color when producing motherboards. The capacitance of the capacitor is specified, so the author recommends that if you want to find a motherboard with stable quality, when looking at the capacitor, you should look at the surface of the capacitor instead of the volume of the capacitor.

The quality of the components of a good motherboard should also be first-class. If you want to identify the quality of the motherboard, I also recommend that you watch the workmanship of the bayonet part of the motherboard's DIMM memory slot. If it is loose or particularly tight, In this case, the author recommends that you give up this motherboard, because it will bring inconvenience to your future use.

3. Look at the layout

A good motherboard is not only reflected in the materials and workmanship, but the design layout and wiring are also a very profound knowledge. We should pay attention to it after getting the motherboard. On the motherboard, carefully observe the location of the power interface to see if it is particularly close to a component, making it difficult for two pieces of hardware to be plugged into the interface at the same time. Also observe that the DIMM memory card will get stuck when the AGP interface is used, or the PCI interface closest to AGP cannot be used after plugging in the AGP display card, etc.

The overall layout of a good motherboard should look orderly. The location of the capacitor banks should not be disorganized. The PCI interfaces should not be too dense. There should be a certain amount of space near the CPU to facilitate the installation of large fans. , which is more important for motherboards that support AMDCPU.

As for wiring, the knowledge is deeper. The author cannot fully introduce the wiring requirements. I can only talk about simple requirements. Judging the quality of wiring can be judged from the turning angle and distribution density of the wiring. Out, a good motherboard wiring should be relatively uniform and tidy, the turning angle of the wiring should not be less than 135 degrees, and the number of vias should be minimized, because each via is equivalent to two 90-degree right angles. If the turning angle is too small, the wiring and Vias are equivalent to inductance components in high-frequency circuits. The traces from the CPU to the North Bridge should be smooth and even, neatly arranged, and with few vias. The opposite is true for power supply wiring. If the process does not meet the requirements, the wiring will appear tight and messy.

4. Look at the matching

Many current motherboard designs do not follow the public version designs of chipset manufacturers, so there will be some changes in some places, which would not have an impact. The quality and performance of the motherboard are good, but some people have certain purposes and they will not tell you what changes have been made to the motherboard. This is especially worth noting when purchasing.

The most common modification is to change the matching of South Bridge and North Bridge, such as the INTEL 845E chipset produced by a motherboard factory (I shouldn’t mention INTEL products, but this example is the most vivid), which is normal. The combination is MCH-INTEL80845G, ICH-ICH4, but this manufacturer replaced ICH, which is the south bridge, with ICH2. This means that the motherboard that should normally support USB2.0 only supports USB.1.1, but when they advertise it, it is only in the corner. The inconspicuous position is marked. If you are not careful when purchasing, you may be fooled

Reference: /Archive/1370/1410/2003/1/24-47591.html< /p>