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November 30, 2022
The impact of the computer host power supply on computer performance
Power supply is one of the most important accessories for platform operation, without the power supply then a good configuration can not make it run; the importance of the power supply is like a person's heart, the wire is like a blood vessel. The following is a collection of the impact of the power supply on the performance of the computer, I hope it will help you.
Power supply voltage regulator structure has a single-way magnetic amplification, dual-way magnetic amplification or DC-DC structure. This structure affects the voltage offset of the +12V, +5V and +3.3V outputs. The DC-DC has the strongest control performance, followed by the dual magnetic amplification, and the worst structure is the single magnetic amplification. The single magnetic amplification, which separates the +3.3V into a separate output, will feature a small coil near the main transformer. And +12V and +5V are controlled by the PWM chip. Therefore +12V high load will have a big impact on +5V output voltage. And there will be two coils in the position of the current regulator structure to give +12V and +5V respectively for current regulation. The dual magnetic amplification, which separates +5V and +3.3V, is characterized by two small coils near the main transformer and three large coils corresponding to +12V, +5V, and +3.3V at the location of the current regulator structure. because +5V and +3.3V are independent, the impact on the other two output voltages is reduced at high +12V loads. This is a structure that evolved from single-way magnetic amplification, solving some of the defects that occurred in the use of single-way magnetic amplification. The DC-DC structure, which takes power from +12V and steps it down directly to +5V and +3.3V and then outputs it, so the +12V power rating can be made larger without limit. This structure is the easiest to identify, and there will be a vertical PCB with two coils in the place of the current regulator structure.
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