What are all the misconceptions about buying an industrial control machine?

Because the market is full of true and false news, so many customers in the purchase of industrial control machine produced a lot of misunderstanding. What are the misconceptions about the purchase of industrial control machines?

First, PCB colour and performance-related 

On the issue of the colour of the PCB, there has been "green than red, red than blue, blue than black" this statement. In fact, this is a big misconception. PCB boards have different colours, the reason is that the colour of the solder resist brushed on top is not the same, and the different colours of the solder resist does not affect the actual performance.

Second, the purchase of all-solid is good

This is also one of the misconceptions, in fact, solid-state capacitors are indeed better than the original electrolytic capacitors in terms of high temperature resistance, but the capacitors are used to protect the stability of the components on the motherboard, the only components that can cause high temperatures on the motherboard is the North Bridge, CPU, graphics cards, in addition to these locations, other locations simply do not need to use solid-state capacitors.

Now when you buy an industrial control motherboard, choose a motherboard with a similar price point to the CPU and graphics card, the price is not too high, and the materials used do not have to be too luxurious to use solid capacitors near the CPU, graphics card near the PCI-E interface, near the memory, other locations such as integrated sound cards, network cards, etc., with solid capacitors is not luxury, a pure waste. 

Third, the CPU, graphics card must be good, the motherboard as long as you can make these pieces light up on it

This is also one of the misconceptions. In general, the set of motherboards to slightly lower than the price of the motherboard with a single display, which is often not only because of the small board type caused by the incidental and chipset performance and power supply design of each interface, especially the number of CPU power supply modules, low-end set of boards basically no more than 6 phases, which causes the high-end U filtering requirements can not be fully achieved, and sometimes even cause the CPU has been running at high temperatures This results in the filtering requirements of the high-end U not being fully met, sometimes even causing the CPU to run at high temperatures all the time. All these consequences have an impact on the life of the machine itself.

The small size of the board is also detrimental to heat dissipation, because the board is small, so the interfaces of the components are designed to be relatively close, like the high-end CPU and high-end graphics cards, they are too close to each other, which will definitely cause poor heat dissipation, coupled with the savings in materials, the double high temperature is even better hardware can not afford.