Difference between CPCI power supply and ATX power supply 5

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One is the Intel standard and the other is the PICMG standard.

The design grade is completely different, ** reflects the cost. It can be argued that ATX still tends to be considered a consumer product, while the PCCI power supply is at least industrial-grade. In fact, some manufacturers also provide military-grade CPCI power supply products, mainly for wide temperature reinforcement.

In addition, ATX is AC input, while the PCI power supply has three input modes: 24VDC and 48VDC AC. In other words, if your input source has DC, you can only choose a PCCI power supply.

When choosing an ATX power supply, I believe that the biggest consideration is cost!

CPCI stands for CompactPCI, also known as Compact PCI in Chinese, which is a bus interface standard proposed by the International Picmg Association in 1994. It solves the problem that telecom system engineers and equipment manufacturers have faced for many years, the incompatibility of traditional telecom equipment buses such as VME (Versa Module Eurocard) and industry standard PCI (Peripheral Component Interconnect) buses. CompactPCI is designed to combine a dense and rugged VME package with excellent cooling for large devices and a chip that is inexpensive and easy to use with the latest processing power for PCs, ensuring high reliability and significantly reducing hardware and software development costs.

The ATX power supply is the working power supply of the computer, which is used to convert the AC 220V power supply to the DC 5V, 12V, and 24V power supply used inside the computer.

The two of them don't seem to have anything to do with each other!

CPCI Power also has the advantage of direct N+1 redundancy.

AT power supplies do not support power management.

This means plugging in the power and starting the computer directly. After the shutdown, the hard disk, optical drive, graphics card, etc. are still powered on. And the monitor says "It's time to power off."

ATX will turn off the power of hardware such as hard disks when the system is turned off.

And due to the different times, AT power supplies focus on 5V and power.

The ATX now focuses on 12V of power.