Small memory needs to be increased? The memory is broken and needs to be replaced? Then you must know what type of memory your computer should use, because different types of memory, slots are not universal, that is, not compatible. The following tips teach you how to accurately identify memory. Since the introduction of DDR (first generation) memory, the third generation, DDR3 memory, is now popular on the market. However, DDR4 has quietly prepared to kick DDR3 out of the market. From the frequency we can see that the memory belongs to the first generation, the first generation of memory is already an antique, not to mention here, just list the second and third generation. DDR2: 667, 800DDR3: 1333, 1600, 1866, you should pay attention to it, maybe DDR3, maybe DDR4. So how is the frequency viewed? Let's list a few. Kingston: KVR16N11/4, 16 behind the KVR, it means 1600 memory, of course, DDR3, 4 behind the slash means 4G. KVR800D2N6/2G, 800 is the frequency. This way of completely marking the frequency is Kingston's method before May 1, 2012. It can be seen from the frequency that it is the memory of DDR2. D2 further illustrates this point. The 2G behind the slash is the capacity. Kingston memory number is detailed, Dayou can talk to WeChat public number daren858, reply "number", view, here is an example. Corsair: CMX8GX3M1A1600C11, 8G after CMX, indicating 8G capacity, 1600 is the frequency, according to the frequency range to judge this is DDR3 memory. VS2GB800D2, where 2G represents capacity and 800 represents frequency, ie DDR2 memory. Chichi: F3-2400C11D-8GSR, 3 after F indicates DDR3 memory, 2400 indicates frequency, and 8G is capacity. If this is not well recognized, the brand's memory also directly writes the type frequency and module name directly on the label, such as DDR3-2400, PC3-19200. PC3-19200 is the standard naming method of memory modules. PC3 means DDR3, PC2 means DDR2, and the following numbers indicate the data transfer speed of the memory, that is, 19200MB/s. Since the memory width of DDR3 and DDR2 is 64 bits, there is such a The relationship 2400 * 64 /8 = 19200, so the use of the following number divided by 8 just happens to correspond to the frequency of the memory (data transfer rate /memory speed). Good brand memory will be marked in this way. Although some models on the memory tag imply voltage information, it is straightforward to look directly at the voltage on the memory tag (but there are a few memory manufacturers that do not mark it). DDR3 memory has 1.5V, 1.35V and 1.65V, 1.5V is the most common, 1.35V is low voltage, and 1.65V can be seen in high-end game memory. The DDR2 memory voltage is 1.8V. DDR4 memory voltage is 1.2V. In the middle of the desktop motherboard memory slot, there is usually a voltage label, but the word is too small, and the eyesight is almost ugly. [Software identification method] This software has more hwinfo32, cpu-z, a bunch, needless to say here. The advantage of this method is that there is no need to disassemble. More convenient, the White Party can use remote assistance to ask for help. [Memory Compatibility] I don't know when to start. I often hear from the White Party that multiple memories are plugged together and need the same brand, capacity, batch and frequency. This can only be speechless. When I add memory to my computer, I don't believe that there are several people who have the ability to find the same memory, brand, capacity, batch and frequency. As long as the memory type is the same, that is, DDR2, or DDR3, or DDR4, although the frequency is not the same, the capacity is not the same, the batch manufacturers are different, can be mixed into a computer, whether you believe it or not, anyway, I believe It is. What happens when the memory with different frequencies is plugged together? For example, DDR2 800 and DDR2 667, this will cause the memory frequency of DDR2 800 to automatically decrease and the same as DDR2 667. But it does not affect anything. In its individual case (this probability is relatively low), after the mixed memory of different brand frequencies, there may be an inability to start. You can try to swap the memory bar position. This article comes from [System Home] www.xp85.com