Problems with laptop plus memory modules

The notebook must be dedicated, and the voltage specifications are different from the desktop, but ** is about the same, it is dozens more expensive, and 512 is less than 400.

Generally, 2 notebooks can be plugged in.

Laptops use dedicated memory (desktops, of course, can't) or find a professional repairer to be safe.

I don't know the price.

In general, memory should not be mixed.

Basically, the general book is 2 memory ports.。

In fact, it's very simple to see, basically remove a screw, open something like a battery cover, and you can see it.

It can be added, but the memory of the notebook is different from that of the test machine.

Generally, up to 2 can be plugged in.

Samsung Gold Bar SEC333X64SC25 (512M DDR333 Notebook) 360 yuan.

One heel is enough, about 300 more than 350--380

Only the dedicated and non-universal notebooks**are generally about twice as expensive as the ordinary ones**Specifically**Go to the Pacific Ocean to see.

Adding memory is not a simple matter, it has to match the original memory on your machine, but also take into account the weight, heat dissipation, some problems, it is recommended to go to Lenovo's service department to see

Notebooks are good things after all, be cautious

There is memory for the exclusive use of notebooks.

But add memory to Ben.

It's better to let someone who specializes in repairing it change.

I don't know the price.

To add a memory module to your computer, you need to pay attention to:

1. The computer supports several generations of memory, and the maximum memory supported. Under normal circumstances, almost all motherboards support up to 8G without any problem.

2. How much memory does the computer's system support? The 32-bit system supports up to 4G, and more than 4G requires a 64-bit system.

3. What is the brand and frequency of the memory, because if the two memories form a dual channel, the effect of using the same brand and model is the best, and the compatibility is better.

4. Whether the memory slot on the computer motherboard is sufficient, if it is not enough, the new memory can be used to replace the old memory with low frequency and small memory.

5. If it is a laptop, it is best to take the computer to buy memory, so that you can test whether the new memory and the old memory are compatible on the spot.

Expand your knowledge: A memory module is a part of a computer that can be bus-addressable and read/write by the CPU. 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.

The data written to RAM (i.e., read-write memory, i.e., memory modules) will disappear completely after the power is off, and the earliest program data that the CPU reads and executes when the computer is turned on comes from ROM (read-only memory). Memory is the basic component of computers (including microcontrollers), and memory has been available since the day computers were available. External memory belongs to computer peripherals, and hard disk is the external memory developed after the stage of tape and floppy disk.

Memory is an essential part of a computer, and the CPU can address it via a 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 function.

<>b.Align the memory notch with the socket bump and push the memory vertically down into the socket.

c.When the buckle is automatically locked, the memory can be installed.

First, use the tool software to check the existing memory model.

Memory of different models cannot be mixed.

Second, query the relevant parameters of the notebook, and there are several memory slots.

For example, the existing memory is 2 GB

And there are two laptop slots.

You can choose to upgrade the same model of 2GB memory, too large memory can not play a role in the 32-bit system, if there is only one slot, try to choose 4GB.

Third, choose a trustworthy merchant to buy compatible memory, don't buy parallel goods because of greed for small cheapness, two months ago I bought 4GB memory ** price of 110 yuan, there is no need to buy parallel goods because of a small price difference.

Fourth, if the notebook is some special models, search for the disassembly diagram of the relevant model, if it is an ordinary model of the machine, choose a suitable screwdriver to open the bottom cover of the notebook for striping operation, you should pay attention to the operation, first of all, most of the notebook memory slots are fixed with steel clips to be evenly used when adding strips, so as not to cause damage, and secondly, you should pay attention not to over-dry your hands during operation, so as not to cause breakdown of motherboard components caused by static electricity.

Fifth, when adding strips, you can do the dust cleaning of the processor fan at the same time, and you can install the bottom cover back when you are done.

1. Pay attention to the model, DDR DDR2 DDR3, don't make a mistake, otherwise you won't be able to install it at all, and of course you won't be able to use it;

2. Pay attention to the frequency, which is equal to or higher than the original memory as much as possible. For example, the original memory is DDR3 1333, then at least DDR3 1333 should be bought, and of course 1600 can also be used;

3. Be sure to buy original licensed goods, and it is best to buy them in a trustworthy place. While it is possible to have compatibility issues with the memory, in general, there is a small chance that the original ** memory will have this issue.

First of all, and most importantly, the frequency of memory modules is the same, and the mainstream is now 1333. Don't buy wrong.

Secondly, see how many memory slots your laptop has, and whether it supports dual SIM dual channel.

Finally, buy those big brands, regular ones, if you don't buy the same brand that comes with it, it's best to buy a brand with high compatibility, remember to buy it, plug in the boot experiment, and see if it's useful under the system information of windows. Still have doubts?

The most important thing is the compatibility of the two memory roots, and the other thing depends on the number of bits of your operating system

The maximum memory of 32 bits is 2 32 bytes = 4,294,967,296, which is 4G.

The theoretical maximum of 64 bits is 2 64 bytes = 18,446,744,073,709,551,616 = 18 EB, about 18 billion GB.