By Sophia | Last Updated
Summary: In computer, CPU transfers data with RAM quickly. Nowadays, increasing sofewares consumes computer memory. A good RAM equipment can make PC run smoothly. Now, this article will give you useful skills about selecting memory bank and tell you how to upgrade your RAM set.
2. Memory bank's parameters and quality analysis
As we all know, the CPU can process command very fast, and it can finish lots of commands in a short time. When it processess these commands, it need to read lots of documents which is saved in the hard disk before.
At the same time, the hard disk's transfer speed can not catch the CPU processing speed. So we can say, the CPU gets the commands but waits for finishing it, while the hard disk does not send the needing documents to CPU. As a result, users will waste lots of time in waitting.
The memory bank's apperance can decrease these waitting time. Memory bank have more advanced storge technology than the hard disk. Take the common DDR4 memory bank for example, its reading speed can up to 7000 MB/s, but that of traditional hard disk is not over 300 MB/s. In other words, the hard disk's transfer speed is not fast enough so that it makes the computer run slowly.
Due to the advanced storge technology, memory bank can help computer run faster. When we boot the computer and open some APPs, memory bank will read the needing documents and save it. When CPU need these documents, the memory bank's documents can quickly transfer with CPU. A simple case is when we open some big sofewares, we may wait for a long time, but after it finished loading, we can use the software smoothly. When we colse the softwares or clear the background, the memory bank's data will be delete for the next needing documents.
The memory bank's capacity labels the avalible space for saving data.The bigger capacity memory bank can store more needing documents in one time. When you open the computer and software, the needig documents will be loaded into the RAM. If the needing documents are too big or the memory bank's capacity is not enough, CPU will transfer data with the hard disk. You will feel your computer becomes very slow.
It is the unit of storge. There are some famous paticle manufacturers like Samsung, Hynix, Crucial and so on. Because the manufacturers' particle usually has different quality, some excellent particles will be used to produce high performance memory bank, the common particles will be made into common RAM. According to the clock speed and timing sequence, we can evalue the particle's quality.
We usually read 2133MHz, 2400MHz, 3200MHz on memory bank's introduction. They are the the clock speed of the memory bank. If we compare memory bank as a data transfer store, the memory bank capacity can be described as the inventory ability, the clock speed as the ability of how much it can transfer in one time. Higher clock speed of memory bank can transfer more data in one time. The memory bank over locking will make it break the label clock speed. Manufactuers usually promise lifetime warranty, so it is no need to worry about the bank's life.
One thing to note is that lots of DDR4 memory bank's default clock speed is 2133MHz. If you use the high clock speed memory bank, for enjoy the high clock speed, please open the 'XMP' option in the main board BIOS setting or over lock by yourself.
In addition, there are lots of mainboards which don't support over 2666MHz's memory bank. So it is necessary to check whether the main board can supply high clock speed or not. If not, even the 4000MHz perfect bank will drop down to 2666MHz at work.
By the way, if you use the high and low clock speed memory bank at the same time, the higher one will slow down to the lower one's clock speed.
We can regard timing sequence as the time that the store workers need to finish one loading work. In general, the higher clock speed can transfer more data at a time. As a result, the timing sequence will be evtented.
Take the common DDR4 2400MHz for example, its timing sequence usually is CL15 to CL17. Some high performance memory bank have 3200MHz's clock speed but timing sequence is just CL12. For these excellent banks, it can over lock to 4000MHz and keep the standard timing sequence.The timing sequence information will be showed in some memory bank's sticker.
We compare channel as the way which connects CPU and RAM, so we can understandard the difference between single channel RAM and dual channels RAM. The single channel RAM transfers data in one way. when it meets big data flow, it will be crowded. Dual channels RAM makes offers two ways and brings the double broadwide. For the advantage of double broadwide, we can enjoy better experience in heavy duty. It is very useful for the computers with no discrete graphics.
One thing to note is that, dual channels memory bank is usually installed at intervals on memory slots. Manufactures usually use different colours or words to label matching slots. If the mainboard has two memory slots, just install it directly.
Memory bank has lots of types like SDRAM, DDR, DDR2, DDR3, DDR3L, DDR4 and so on. These different memory banks are different in size and the fool proof openings. Take the DDR3 and DDR4 memory bank as example, the working voltage are not the same. DDR3 bank is 1.5V, while DDR4 bank just 1.2V. At the same time, the DDR3 bank's fool proof opening is deviation to left, DDR4 bank's opening ia deviation to a little right.
Different types' memory bank can not be used together, which will make memory banks and the mainboard at risk. The mainboard usually labels supported memory so that user can use the computer information software to check the mainboard and know what kind of the memory bank can be supported.
PCB board is the circuit board, some manufacturers will mark the memory bank's PCB board layer number.The more layers, the thicker it is, and the greater the number of internal wiring layers on the board. The increase in internal wiring alleviates the problem of internal circuit wiring blockage.
Manufacturers can increase the width of each wiring, so as to improve the electrical performance of memory bank, overclocking will be more stable too.
The mainboard and memory bank also will have compatibility problems, when the motherboard and memory bank contacts good but not compatible, we may not be able to boot computer or hear the memory bank's humming sound after booting a period of time. Therefore, it is better to tell the seller of the motherboard model when you buy a memory bank. It will help you avoid buying incompatible memory banks.
The different mainstream manufactures' memory banks have little different in price. Ordinary users can consider Kingston, Crucial, Corsair, G.Skill, Galaxy and other brands. They are famous brands with reliable quality.
Before buying, you should know more about the computer motherboard. Computer information detection software like CPU-Z will offer the motherboard and memory information in details. After knowing the motherboard model, you can get the supported memory bank's type and clock speed. Of course, you can also know the current memory type which is installed in your computer , and its clock speed. With your motherboard information, you can filter out memory banks that aren't compatible with your motherboard as fast as possible.
The important quality parameters of memory bank are its clock speed and timing sequence. We pursue higher clock speed and lower timing sequence. For the same clock speed, select the memory bank with lower timing sequence, and for the same timing sequence, choose the memory bank with high clock speed. Of course, we should pay attention to whether the motherboard supports high clock speed and what kind the memory will be supported.
Before you buy the memory bank, you should have an estimate of your needing memory capacity. Currently, the mainstream memory configuration is that two 4G memory banks constitute dual channels 8G memory, while more high-end memory sets are two 8G memory sticks constitute dual channels 16G memory, dual channels 32G memory is rare and commonly used in professional fields.
You can buy a memory bank first. After using it for a period of time, if you find that the single channel memory bank can't meet your needs, you can buy another memory bank with the same size.
Dual channels memory have little impact on computer with discrete graphics card. But for the computer don't use discrete graphics card, the advantage of dual channels memory will be apparent when it is running large tasks.
For small capacity memory banks, building dual channelss memory can extend its usage and save money.
In addition, please be sure to buy memory banks that meet the requirements of the mainboard and have the same algebra. The banks with different algebras cannot be used together. If you force to use it, it may burns the memory banks and mainboard. Finally, choose famous brands, with lifetime quality assurance. And its reliable purchase channel can help you buy a good memory bank.
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