Differences between models of notebook memory modules 10

You can make a direct visual judgment by doing the following:

1. SDR: two notches, single-sided 84 pins, double-sided 168 pins, voltage, memory particles rectangular (eliminated).

2. DDR1 (first generation): one notch, 92 pins on one side, 184 pins on both sides, voltage, rectangular memory particles, working frequency 266,333,400.

3. DDR2 (second generation): one notch, 120 pins on one side, 240 pins on both sides, voltage, memory particle square, working frequency 533,667,800.

4. DDR3 (third generation): one notch, 120 pins on one side, 240 pins on both sides, voltage, memory particle square, working frequency 1066, 1333, 1800.

Extended Information: Precautions for Laptops with Memory Modules.

First of all, you need to check the model and generation of your original memory module. Now in memory there are algebras for ddr, ddr2, ddr3. If the memory generation you purchased does not match the original memory generation, then it is useless to install it on the laptop motherboard.

Of course, here we can detect the model and generation of your laptop's memory through the game software.

After taking into account the memory algebra, the second must be the same frequency as the original notebook memory when you buy the memory. If the memory frequency is different, even if the laptop has successfully detected the memory, it will still freeze and blue screen. This makes the compatibility with the notebook not very good.

So this is also a factor to consider when we buy a memory module.

It is the first generation of memory modules with a working frequency of 266.

The number after the DDR is a few generations, and your DDR's is the first generation.

Memory modules 1st and 2nd generations are definitely not universal, and each generation is like this.

1. This is the earliest first-generation DDR memory: PC2100 refers to DDR-266, with a capacity of 256MB. The other one is DDR-333, which also has a capacity of 256MB.

2. DDR and DDR2 memory cannot be mixed, because the working voltage of the two is different.

For insiders, you can remove the cover at the bottom of the laptop to see the place where the memory module is installed, and judge the model of the memory module by the appearance of the memory module.

A memory module is a part of a computer that can be addressed by the CPU and can be read and written. Memory modules used to be an extension of the main memory in the history of personal computers. With the continuous update of computer software and hardware technology, memory modules have become the whole of read and write memory.

When we talk about the size of a computer's memory (RAM), we refer to the total capacity of the memory module.

Memory modules are an essential part of a computer, and the CPU can address the memory through the data bus. Historically, computer motherboards had main memory, and memory modules were extensions of the main memory. Later computers will not have main memory on the motherboard, and the CPU will rely entirely on memory modules.

All content on external memory must pass through memory in order to be effective.