Looking for a computer power supply with a dual-core CPU

The hardware configuration of the computer is also very particular, not as good as our CPU is now dual-core or above, but if other hardware can not keep up, it will not work. The first is the choice of power supply. Currently, there are three main versions of power in the market, namely Intel ATX 12V version 1.3, Intel ATX 12V version 2.0 and Intel ATX 12V version 2.2, which evolved according to the development of mainstream platforms.

ATX 12V Version 1.3

Intel ATX 12V version 1.3 is mainly designed to meet the original Pentium 4 platform. It is designed to enhance 12V power supply and increase the power supply interface to SATA hard drives. Power conversion efficiency.

ATX 12V Version 2.0

Compared with the ATX 12V version 1.3 standard, the most obvious improvement of the ATX12V 2.0 version is that the +12V adds a single output, which uses a dual output. One channel +12V (called +12V1) is dedicated to powering the CPU, while the other +12V (called +12V2) supplies power to other devices.

If the output of the power supply +12V is 22A, it does not meet the safety requirements. The FCC (Federal Communications Commission) has clear provisions in this regard, any DC voltage output of the power supply is not allowed to exceed 240VA, and Intel's desired +12V output reaches 22A, which can reach +12V× 22A=264VA, beyond 240VA requirements. In this technology background, Intel divided the +12V of ATX12V2.0 into +12V1 and +12V2.

The difference between 20Pin (left) and 24Pin (right)

ATX 12V version 2.2

The latest ATX 12V version 2.2 standard still uses the two-way standard in the 2.0 version. The +12V output design is only a further improvement in some indicators. The main changes are: the addition of the latest specifications of the output specification and the load cross-over diagram, enhanced 3.3V and 5V output capability, weakened 12V continuous power supply capability. PC235.COM

Knowing the power

Normally, the most stable power of a power supply is greater than or equal to the total power of each component in the computer, then this power supply is for you. The computer is qualified. When it comes to the power of the power supply, many users will point to the nameplate on the power supply case and say: "The power supply is written on it." In fact, many power supplies will not mark the actual power on the nameplate. The PW350 or SV400W you see does not mean that its actual working power is 350W or 400W. The model has nothing to do with power. The model is often Power barrier power method.

In addition, you can see some parameters on the power supply nameplate. The approximate power of a power supply can be seen from the power supply nameplate attached to the power supply. In addition to an output voltage and current table, different brands of power supply nameplates will have the words “maximum power 450W” and “rated power 300W”, and of course there will be some power supply only output voltage and current tables.

You can learn some parameters from the power nameplate.