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How to identify the computer power supply? Computer power supply true and false identification cours

Now computer power is more fishy eyed, many people do not know how to identify the true and false computer power? The following computer power supply authentication tutorial to understand.

New and old identification standards:

First, check the power package, not necessarily a box, but the hard disk outside the packaging film must be standard

Second, check whether there are traces of screws on the four screws of the power supply installed on the chassis.

As shown in the figure above, there are obvious traces of installing the chassis. In addition, you can also see if there is dust inside the fan. If there is dust inside, you can clearly judge whether it has been renovated and replace it with the manufacturer.

Third, check the use of wire and interface whether there is dust and old and new degree.

Course of true and false identification (take great wall power supply as an example, other brands are also applicable)

1. The background color of the anti-counterfeiting code of the real power supply is the same as that of the paper, which requires higher technology, while the false anti-counterfeiting label will use white.

2. The label paper of real power supply is flat without bubbles, while the label paper of fake power supply has a lot of bubbles, and there is a letter 'W' in front of the bar code. When buying, we should pay attention to these details.

3. The phone on the real power anti-counterfeiting code is 8008305315, but the phone on the fake power anti-counterfeiting code is not this number. When you buy other brands of power, you can check the real anti-counterfeiting phone first.

4. Genuine power supply has PFC's primary and secondary filter circuit, while fake and fake power supply has no PFC circuit.

5. The 24pin of the genuine power supply will be printed with JMT, while the counterfeit and counterfeit products will not. The power wire of the real great wall is thicker than the fake wire, and the assembly is more solid.