What is the difference between server memory and memory on a regular PC?

Q: What is server memory and what is the difference between it and the memory on a regular PC ?

Answer: Server memory is also memory, it and we usually see in the computer city in the ordinary PC there is no obvious difference in appearance and structure, it is mainly in the memory of the introduction of some new technology, ordinary PC memory on the server is generally not available on the server to recognize, This means that the server memory can not be arbitrarily for cheap with ordinary PC memory to replace the reason. Some people have some kind of technology of memory is called "Server memory", in fact, is not comprehensive, the server of these memory technology is currently in the view of the server is dedicated, but can never be guaranteed only server-specific. These new technologies are first used on the server because the server price is more expensive, conditional to apply, these new technologies due to the price of the reasons for the temporary PC machine can not be applied, but with the fall in the price of accessories gradually to the general PC machine, Just like the original parity correction memory was first applied to the server, now is not very common? So server memory is not a specific, it is the application of new memory technology in different time periods.

　　Q: What are buffer and unbuffer?

A: Buffer is the buffer, can also be understood as a cache, the server and graphics workstation memory more applications, capacity of more than 64K, but with the constant increase in memory capacity, its capacity is also increasing, with buffer memory will be the memory read and write speed of a greater increase, As early as 168 cores EDOECC server memory is mostly buffer,unbuffer to indicate that it does not have a cache. With buffer memory almost all with ECC function, Unbuffer memory only a few with ECC function. It also has a more pronounced feature on the memory number, in the case of Virgin Memory PC133 128M, which is numbered Me16641u4ss-cl3, where the letter U represents Unbuffer.

　　Q: What is register?

A: Register is the Register or directory register, the role of memory in our right to understand the catalog of the book, with it, when the memory is read and write instructions, it will first retrieve this directory, and then read and write operations, which will greatly improve server memory efficiency. The memory with register must be buffer, and the register memory that can be seen now has ECC function, its main application in high-end server and graphics workstation, such as IBM Netfinity 5000.

　　Q: What is ECC memory?

A: At the moment it's about server memory, there is a unanimous emphasis on the need to buy ECC memory, the speed of ECC memory, in fact, is a misconception that ECC memory success is not because it is fast (speed is not related to the memory type only), but because it has special error correcting ability, Keep the server stable. ECC itself is not a memory model, nor is it a special memory technology, it is a kind of computer instruction widely used in various fields, it is a kind of instruction error correcting technology. Its English full name is "error Checking and Correcting", the corresponding Chinese name is called "Bug Check and correction", from this name we can see that its main function is "Discover and correct error", It is more advanced than parity correction technology mainly because it can not only detect errors, but also to correct these errors, these errors after the computer can correctly perform the following tasks, to ensure the normal operation of the server. It's not a memory model, it's because it's not a technology that affects memory structure and storage speed, it can be applied to different types of memory, as we mentioned in the previous "parity correction" memory, it is not a memory, the first application of this technology is Edo memory, now the SD also has applications, and ECC memory is mainly from the SD memory began to be widely used, and the new DDR, RDRAM also has a corresponding application, the current mainstream ECC memory is actually a kind of SD memory.

　　Q: What is the main brand of server memory?

A: Because the server has the technical difficulty and the processing technology than the ordinary PC computer memory has a greater improvement, in the service memory brand selection is not as miscellaneous as ordinary PC memory, but the current server memory brand also has the trend of gradual hybridization, the current main server memory brands are mainly Kingston, Samsung, IBM, NEC, etc., but mainly in the previous several in the market is more common, and quality can be better protected.

　Q: What is the development of server memory technology?

A: server memory as well as any other products, the new technology is constantly developing, and constantly get the application, and then gradually replace the original technology to achieve its universal application. ECC technology is currently the mainstream server memory technology, but the new memory technology has been emerging, the main currently has IBM and CHIPKLL technology in the memory manufacturers to use. The main memory type has DDR and Rdamb Company's Rdram to replace the current SD memory, the DDR is also currently with ECC technology. But these mainstream memory technologies are also in the same direction around ECC technology. belong to the category of ECC technology.

　　Q: What should I pay attention to when choosing server memory?

A: The choice of server memory can not be as casual as the ordinary compatible machine, because the server generally requires 24 hours continuous uninterrupted work, but also requires a high speed, large capacity, the current general requirements in PC133 above, so in the selection of memory must pay attention to select the server dedicated memory, FSB to more than 133MHZ, can not casually use the memory of a PC instead. Memory optimization is mainly embodied in the memory access buffer time settings, in the CMOS has the corresponding settings, generally should be set to a smaller buffer time, so the speed will be faster. In addition, the server memory must not use the compatibility bar or affixed with fake original tag memory. Be sure to choose a good supplier, a good memory brand, such as Kingston.