I. What is an industrial control motherboard?
Motherboards prior to the 486 generally lacked the aforementioned functions, while motherboards from the 586 onwards are equipped with PnP and energy-saving features. Some original brand-name computers can even control the power supply of the host through the motherboard, further achieving intelligent power on/off. This is still rare on compatible motherboards, but it is definitely a future development direction.
Industrial control motherboards often operate in harsh environments with a temperature range of -20°C to 70°C (permanent operation within their lifespan, harsh climates, humidity, vibration, dust, radiation, high temperatures, etc.), while commercial motherboards cannot withstand these conditions.
The industrial control motherboard, through special design, can automatically restart and protect against surge impacts in the event of abnormal situations such as system crashes, fully ensuring the high stability of the system in harsh environments. The development evaluation baseboard: Physically, the development evaluation baseboard mainly carries the load and leads all external interfaces to the corresponding hardware interfaces or sockets.
II. How to judge the quality of an industrial control motherboard by its components
In this section, we will mainly learn how to judge the quality of an industrial control motherboard by the materials used.
Capacitors, inductors, power switches, debug LEDs—these are all considered part of the components used in motherboards. Some motherboards employ a dual BIOS design, so even if one BIOS fails, there's a backup (e.g., Advantech industrial PCs, Huabei industrial PCs, etc.). These differences in component usage are worth noting. Differences in component usage among motherboards: The number of CPU power phases on a motherboard is an important indicator. Generally, more phases can provide higher power output, resulting in a more stable current supply and less voltage fluctuation. However, more power phases also mean more inductors, capacitors, and MOSFETs are required, increasing the overall cost.
Generally, the number of power phases on a motherboard is clearly visible. However, the power switch button and debug LEDs on the motherboard are also considered part of the components used. Some motherboards also employ a dual BIOS design, so even if one BIOS fails, there is a backup. These differences in component usage are worth noting. The number of CPU power phases on a motherboard is an important indicator because more phases generally allow for higher power delivery, more stable current supply, and less voltage fluctuation. On the other hand, more power phases mean more inductors, capacitors, and MOSFETs are needed, increasing the overall cost.
Generally, the number of power phases on a motherboard is clearly visible. However, the capacitors and inductors used on motherboards differ, resulting in varying performance in actual use. Distinguishing the quality of each type of capacitor and inductor is a complex undertaking, requiring a lengthy article and numerous images to explain clearly. Therefore, a simple method is needed for identification: better products tend to have better appearances, while lower-cost, lower-quality products pay less attention to aesthetics. Thus, the simplest way to differentiate them is by their appearance.
In terms of capacitors, the use of all solid-state capacitors has often become a standard for judging whether a motherboard is good or not. This statement has some merit, but it is not absolute. Apart from the CPU power supply unit and other parts with high current and high heat generation, the use of solid-state capacitors in other parts of the motherboard is not actually necessary. There is no need to choose a more expensive motherboard just to pursue all solid-state capacitors, unless the price difference is not significant and you feel that it is worth the money.
