How can I tell if the DDR memory strips are 1 generations, 2 generations or 3 generations?

As we all know, there are currently three kinds of desktop memory in the market, specifically divided into DDR,DDR2 and DDR3, then the three kinds of memory in the end how to judge and distinguish it? Now the Wuhan Long Dragon Computer Maintenance center of the author to give you a specific talk about the difference between them in order to solve the computer we want to upgrade the purchase of memory strips, The memory of the purchase of the wrong, the last and not to use.

There are three specific ways to identify DDR memory strips

Method One: Look at the appearance

It is easy to see from the above picture that there is a distinct characteristic between them, that is, the fracture surface. Their fracture is absolutely different. Furthermore, the memory particles used in the DDR memory bar are rectangular and pin-shaped, while the DDR2 and DDR3 memory particles are patches, please check the degree of Niang.

Method Two: See Frequency

In general, the label above the memory bar, in addition to the manufacturer of the memory bar, there will be memory model and frequency and work voltage and other information. For example, the label on a memory strip is: Kington KVR 1333d3n9/4g-sp 1.5V. This can be seen in this memory is: Kingston 4G, Frequency is DDR3 1333HZ.

So, look at the label on the memory sticker. The easiest way to write on a label is to look at the frequency on the Memory tab.

The DDR memory is 266,333,400 of the frequency

The DDR2 memory is 533,667,800 of the frequency

DDR3 memory is the frequency of the 1066,1333,1600

Method Three: Look at the operating voltage of the memory bar

With method Two, look at the label above the memory bar. As shown above, you can see that the 4G memory chips on the map of the working voltage of 1.5V. So, I can tell you: the working voltage of the DDR memory is the 2.5V,DDR2 voltage is 1.8V,DDR3 working memory voltage is 1.5v.