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2025-01-27 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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This article is about the difference between server memory and normal memory. The editor thought it was very practical, so I shared it with you as a reference. Let's follow the editor and have a look.
Difference: the memory bar of the server supports ECC error checking technology. After error checking and correction, it virtually ensures the stability and reliability of the server system. When an ordinary memory bar detects an error, it cannot determine where the error is, nor can it correct the error. For memory strips of the same brand, specification and capacity, the memory price of the server is usually higher than that of ordinary memory.
Usually we should contact the most ordinary memory, that is, what we call PC memory, generally speaking, the larger the memory, the larger the available cache, and the faster the computer runs. The same is true for servers. The more memory the server has, the larger the available cache is, and the faster the website is.
What's the difference between server memory and ordinary memory?
First of all, in terms of selection and purchase.
Ordinary memory, such as PC memory, etc., we are usually looking at the memory bar is DDR3 or DDR4, what is the frequency, 2133 or 3000, what particles are used? What is the memory timing? How much is the 4G memory stick and how much is the 8G memory stick? which cost-effective point to buy? Generally speaking, it will measure the performance differences between different brands and products, as well as the pursuit of a performance-to-price ratio.
Server memory is different. The most important thing for server memory is to stabilize and correct errors, not to pursue higher frequency or speed, but to pay more attention to technology. It can be said that some advanced technologies are used in server memory, while most advanced technologies are used in ordinary memory.
2. What are the technical differences
The memory bar of the server supports ECC error checking technology. After error checking and correction, it virtually ensures the stability and reliability of the server system. The main function of ECC technology is to correct data errors. After all, server memory is usually a long-time workload, and it is normal to power on continuously for a month. In order to ensure the stability of operation, it is necessary to correct the data in memory in order to ensure the correct transmission and execution of computer instructions.
In addition, hot-swappable technology is also an important technology to ensure the continuous and stable operation of the server, so that the maintenance personnel can plug and unplug the memory directly under the normal live operation of the server.
When an error is detected by an ordinary stick of memory, it cannot determine where the error is, nor can it be corrected. Ordinary memory usually only needs to work for a few hours or more than ten hours. Ordinary memory sticks do not have hot-swappable technology, and operations such as replacing the memory of PC need to be turned off and powered off.
Third, the capacity of memory strips is different.
The memory capacity of the server usually starts with 4GB, and the server will choose to install large-capacity memory strips according to the actual situation. The capacity of ordinary memory strips usually starts with 2GB, and now there is enough 4~8GB memory on computers.
IV. Different uses
In general, the memory of the server can only be used for the server, ordinary memory can only be used for desktops, they can not be interchangeable, otherwise it will not boot normally. But the memory bar of the AMD platform server can be used on the ordinary computer, but sometimes it is unstable; the memory stick of the INTEL platform server, the ordinary home computer can not use, can only be used by the server platform.
5. Different prices
For memory sticks of the same brand, specification and capacity, the memory price of the server is usually much higher than that of ordinary memory.
The difference between ECC and RECC in server memory
Functionally, ECC has a special error correction ability to keep the server stable. ECC is a parity (parity), and the R of RECC stands for register, register. In other words, RECC adds a register on the basis of ECC, which greatly improves the working efficiency of server memory.
Is there compatibility between server memory ECC and RECC?
The two are usually incompatible, need to see the motherboard support, rdimm can use recc and ordinary memory, udimm can only ecc, of course, there are rdimm and udimm at the same time, then you can mix.
Server memory purchase method:
1. Excellent workmanship
At present, the number of layers of mainstream memory PCB circuit boards is generally 6 layers, this kind of circuit boards have good electrical performance and can effectively shield signal interference. And better high-specification memory is often equipped with 8 layers of PCB circuit boards for better performance.
2. SPD Hidden Information
SPD information can be said to be very important, it can directly reflect the performance and system of memory. It stores the index information that the memory can work stably, as well as the production of products, manufacturers and other information. Therefore, after you buy memory, go back to use Everest, CPU-Z and other software to check whether there is.
3. Prevent counterfeit repair products
If you look carefully, you will find that the polished chip is relatively dull and fluffy, and the handwriting on the overprint is blurred and unclear. These are generally fake memory products and need to be noted.
Thank you for reading! About the server memory and ordinary memory there is any difference to share here, I hope the above content can be of some help to you, so that you can learn more knowledge. If you think the article is good, you can share it and let more people see it.
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