How to select memory

Question 1: How to choose a memory stick suitable for your computer? Is it possible to select only 8GDDR3 1333mHZ memory chips?

No, as long as the motherboard supports it.

Is 8G DDR3 1600 OK?

can

Or DDR3?

Only DDR3 supported by the motherboard can be used.

How should I choose the best computer? Is the current 4G too small? I open a few programs at random, and 360 shows that the memory is always 45 to 60%.

This should be that your system is not optimized and has nothing to do with memory. If you want to increase the memory, you must change the system. 32-bit systems only support 4GB.

Question 2: How to choose the memory module suitable for your computer depends on the model of the original memory module of your computer. Just find the corresponding model. You are 2G, now you can add a 4G to form a dual channel. You can use Master Lu to test the model of your memory stick. Usually your notebook is DDR3. You'd better use the same model as the most important one of DDR3. . .

Question 3: How to choose the best memory chip for your computer? The first type: if you can disassemble the memory stick and remove the old one, you can take the same type of memory stick directly to the computer city and leave! The most important thing is that the slot size is the same! Slot type is the same! In case you make mistakes during installation, the second one: download the next CPU-Z mentioned by the landlord above and see the specific parameters of your memory stick! Remember the parameters of memory stick! Or write it on paper! Take it to the computer city and change the corresponding memory chips. The third way: the best way is to ask the master of the computer city to install it for you. You give him the parameters of the memory stick, and then you can install it on your computer together! Because if the newly bought memory card has compatibility problems with your computer, you can deal with it then! Also saved you a lot of trouble! And the master can give you some specific suggestions on the computer!

Question 4: How to buy memory What kind of memory should I buy?

At present, there are three kinds of memory on the market, which one to buy depends on your actual situation.

1.SDRAM memory is cheap, and buying large-capacity memory can make up for the lack of SDRAM memory speed to some extent, which is the best choice for users of old motherboards to upgrade their memory.

Due to the huge user base of the old motherboard, various memory manufacturers have introduced SDRAM memory with PC 150 and PC 166 specifications to improve the speed. SDRAM memory will not die out in the market for a short time, but it is still playing its last light.

2.DDR SDRAM memory can transmit data on the upper and lower edges of the clock trigger edge, and the transmission rate is twice that of SDRAM memory. In production, the production line used to produce SDRAM can be produced with a little modification. DDR is an open standard and there is no need to pay patent fees. Using the traditional TSOP packaging method, memory manufacturers can mass-produce without much equipment modification, and the manufacturing process and raw material consumption are basically the same.

The price difference between SDRAM and DDR memory is not very big, but DDR memory can greatly improve the overall performance of the system. It is recommended that new buyers buy DDR memory and motherboard to give full play to the overall performance of the system.

3.RDRAM memory is the development direction of future memory. RISC (Reduced Instruction Set) is introduced, which simplifies the data volume of each clock cycle through high clock frequency. Its working frequency is higher than SDRAM, but its data channel interface bandwidth is low, and it works in serial mode. Therefore, when using Rambus memory, all memory banks must be filled, otherwise it will not work. Memory banks without Rambus must be filled with special connectors.

Rambus is a high-priced patented technology. Not only have to pay patent fees, but also invest a lot of money to transform the production line to produce Rambus. Rambus's performance is really advanced, but it can't become the mainstream memory because of its high price. This high-performance and high-price feature is very suitable for high-end servers or workstations, commercial operations that require a lot of data exchange, and large-capacity 3D graphics processing.

Second, when buying, you should consider

1. Grasp the buying opportunity.

Memory is one of the most changeable computer accessories in the market. It is not too much to use it three times a day. Grasping the timing of purchase can save you some money.

2. Speed

The speed of memory stick is generally based on the time of accessing data once, and the shorter the time, the faster the speed.

3. Capacity

There are many specifications for the capacity of memory banks. The SDRAM memory of 168 line is mostly 64M, 128MB, 256M, 5 12M.

4. Parity check

In order to check whether the accessed data is accurate, 1 bit can be configured as parity bit for every 8-bit capacity in the memory. The parity circuit of the motherboard can correctly check the accessed data, and the parity check will compare the statistical results with the actually read data to see if they are consistent, thus ensuring the correctness of the memory data.

5. Memory voltage

SDRAM uses 3.3V voltage. Pay attention to whether the motherboard supports it when purchasing.

Third, working memory.

The quality of memory work directly affects the performance and stability of the computer.

1.PCB is preferably a six-layer board.

Pay attention to whether the weight of the memory PCB substrate has a heavy feeling, and feel that the quality is uniform, the surface is neat, and the edge of the PCB board is polished smoothly. The surface of the memory circuit board should be smooth and uniform in color, the solder joints between components should be neat, and the pins connecting the memory chip and PCB should be tight and neat.

2. Pay attention to the serial number of the chip or detect the content of SPD. The shorter the delay time of CAS (longitudinal addressing pulse), the better.

Fourth, the capacity and specifications of the memory.

1. Try to choose a single large-capacity memory. The electrical performance of a single memory is stable, obviously superior to two under the same capacity, and the error probability is small.

2. There are two kinds of memory in the market: single-sided and double-sided. Generally, each single-sided memory has one set of banks, while each double-sided memory provides two sets of banks. There is no difference between single-sided memory and double-sided memory. From a technical point of view, for the same capacity of memory, single-sided memory is more integrated than double-sided memory.

3. Memory capacity should be purchased on demand, and 128MB can fully meet the needs of ordinary home users. If it is W...> & gt

Question 5: How to choose a memory stick? As can be seen from the above figure, the notebook computer uses DDR2 667 notebook dedicated memory. If you want to increase the memory, please turn on the laptop and see if there are any free memory slots on its motherboard. If yes, you'd better choose the same model of DDR2 667/800 notebook computer memory to reduce compatibility problems. DDR2 memory has been discontinued, so I'm afraid I can only buy second-hand goods.

To play big games, look at the graphics card first. The old graphics card used in this notebook computer is Intel integrated graphics card, which can only handle some non-3D games and has no room and value for upgrading. Therefore, if you prefer large-scale games, it is appropriate to buy a brand-new desktop computer with a mid-range graphics card or above.

Question 6: How to choose the right computer memory stick is no problem, as long as your main version supports it. You are talking about upgrading the computer memory. Why not talk about the brand and model of the motherboard for changing memory? First of all, you should look at the motherboard manual to see if your motherboard supports 800 memory. 667 is the transmission frequency of memory. It is generally understood that the greater the transmission frequency, the better the performance. On the one hand, 800 is better than 667, but on the whole, you should also consider the reading and writing speed of your CPU and hard disk. Considering the overall performance of the computer, consider whether it is appropriate to change it to 800. But there is not much difference between the two. Buy a comfortable one.

Question 7: How to choose your computer memory? This is a three-generation memory, and your friend is wrong. Memory says DDR3L, and if it is DDR2, it is the second generation. But yours is a low-voltage version. Under normal circumstances, it doesn't take that L. Well, it's better to get it to a physical store for installation. Very safe. 2G4G memory is OK. You also need to clean up useless programs, useless startup programs, garbage, cached files, etc., which takes up relatively little memory.

Question 8: How to choose a suitable desktop memory chip and go to JD.COM to buy Samsung's DDR 2 667? This memory upgrade won't make your computer much faster. Use it for another year at most, just buy one and use it for one round. The memory in the computer is not so bad. It doesn't matter if it is second-hand. Most afraid of buying second-hand goods at first-hand price. ..

Question 9: How to choose the right memory for desktop memory upgrade? Kingston 2GB DDR2 800 190

DDR2 800 meters is enough.

The reduction of memory is related to the graphics card, and less memory is taken away by the graphics card as the main memory. Your graphics card is 5 12M, which is the size after adding * * * memory, but the memory of the graphics card itself is less than 5 12. JS often uses this to cheat us, which is why some graphics cards have high memory but low prices.

Hehe, the memory has no parameters except size and frequency. Don't think about anything else. There are not so many models, so you should say that you need Kingston's 2GB DDR2 800.

Memory was cheap three years ago. In 2008, people speculated about memory, but it just went up. At that time, the money was 320 at the peak. Now it's about 180. This price has a long history. No one can say whether it will be high or low. Small change is only three yuan and five yuan, which has little effect on us.

Question 10: How to choose computer memory? Memory is very important because it relates to the type of memory (DDR, DDR2 or other types), which is closely related to the motherboard and processor of your system. You must choose one that matches the memory of the new computer.

However, even this is not easy to describe how much memory is enough, and the amount of computer memory is also related to the environment. The software we are making and using is the decisive factor to determine the ideal memory capacity of the computer. At this point, with different computers, everything will be different.

For example, Microsoft said that you need 128MB of RAM to run the Windows XP Professional version of the operating system, or higher (the minimum support is 64MB, which may also limit performance and all other functions). The processor needs the minimum specifications, but to be honest, your processor usually needs more memory than the minimum specifications.

In other words, my old IBM ThinkPad 600X with 64MB memory can also run Windows XP Pro. Don't laugh. You really can. Microsoft Word works as smoothly as Lotus Notes. But you know what the principle is? Windows is very deceptive. If it thinks there is not enough memory, it will send an error message telling you that it will stop running. At the same time, Windows starts to extract the capacity from your hard disk as memory and exchange the required data with the hard disk. The difference between speed (that is, performance) is like the difference between walking and driving a racing car.

Start testing

Is this all about memory? In order to know everything, I decided to try a typical media center system and change it from 5 12MB memory to 2GB memory. 2GB has reached half of the maximum memory supported by most consumer motherboards, which is the maximum amount for many users.

Therefore, I use four Ballistix 240-pin DIMM and DDR2 PC2-6400 memory from Crucial Technology. Because this is a high-performance module (with heat sink), it is very expensive, and each memory is more than 100 dollars. You can also find the same level of memory, just like Crucial's standard PC2-4200 module (P/N # CT6464AA53E), which costs about 40 dollars each.

I used two softwares to test the influence of the increased memory on the system: COSBI OpenSourceMark (OSMark) and ULAD Video Studio10 Plus.

OSMark is a comprehensive benchmark software, which means there is no real commercial application in the software. On the contrary, the design of OSMark is to test all subsystems (CPU, memory, graphics card, hard disk), and then comprehensively evaluate all individual test results to get a performance score. I once used the VideoStudio program to divide a 1 hour captured TV video into 43-minute video clips, and then spliced them together to form a complete video. This is not an easy job.

By the way, another change I mentioned, besides increasing memory, is MIMO dual-channel memory architecture. Don't want to speed up to dual channel? It doesn't matter.

Dual channels use paired memory instead of a single device. Which is better? You should consider using a card slot. If you take the card out of the card slot with only one hand, and then pull out the next one, you can finally bring all the cards to you. However, if you keep changing hands, you will go to one slot first, and then the other slot will follow, so maybe the work will be much easier.

Memory benchmark

A computer with 5 12MB memory scored 1053 in Omar. If you look for another high-performance computer, this score is not what you need. Fortunately, this special computer is not characterized by performance, but its special direction is entertainment. Of course, there is still room for improvement.

Install two 5 12MB memories (total *** 1G) without using the dual-channel function of the motherboard, and the score of OSMark can reach 1074. The score got higher, but it didn't change much. However, when I switch to dual-channel memory, the number can jump to 1 1 ... >; & gt