Memory is still rising? Memory is still rising! When does the memory drop? See you at least in the second half of next year! Now what? Don't you think about second hand? In fact, as long as the memory is not used for a long time, there is absolutely no problem in the durability. However, this method of judgment is more scratching his head. Xiao Bian just added a piece of memory to the computer - of course it is second-hand friends, think about it, or use software to run to see it!
Do not miss the memory specification
The upgrade of computers in recent years is almost exclusively based on DDR3, DDR3L, and DDR4 memory. Users of DDR2 should drift past it silently. Advice, DDR2 memory cannot have new ones. The so-called “new†is merely “renovated†or “manufactured†by underground factories.
DDR3 memory to pay attention, the main specifications are DDR3 1066,1333,1600 three main specifications. When adding memory, the following limits are the basis. For example, if your current memory is DDR3 1066, then it doesn't matter which one you buy. When you use it, it is based on the lowest frequency memory. It is not recommended to consider DDR3 1066 products when using DDR3 1333 to buy memory. Otherwise, it will still run at DDR3 1066 speed, causing a huge loss.
There is a very very important specification, DDR3 also has a low-voltage version - DDR3L, the so-called L is low, the working voltage is only 1.35V, and DDR3 1.5V big difference, whether it is a laptop or desktop Before buying the memory, be sure to look at what your own computer uses/supports for memory specifications. Do not buy it wrong (you can use CPU-Z to view memory information).
DDR4 memory is also a lot of second-hand products, if it is 100 series chipset motherboard users, may wish to consider the secondary market to receive a composition of dual-channel, a lot of performance improvement. Specifications, DDR4 2133 is enough, although some motherboards functionally support DDR4 2400 or even higher specifications, but Xiaobian feels less necessary. As for the motherboard users of the 200 series chipsets, the DDR4 2400 is the best choice for you, especially for those who use 7-core Core processors (CPU integrated memory controller, 7-core Core supports DDR4 2400).
Finally, there is a dedicated memory for the AMD platform, starting from the DDR2 era. Xiao Bian has also been in the "half-price memory only AMD what ghost? In the explanation, the Xiao Bian will not say it again.
Leave time for yourself
Buying second-hand memory, the most important thing is to communicate clearly with the seller before placing an order, and reserve sufficient retreat for yourself. For example, when it comes to hand-packing, this is the basic requirement. When buying second-hand memory, no matter which platform (especially the second-hand personal seller of salted fish) must negotiate with the seller clearly, even explain that if you encounter compatibility issues, you can retreat— In particular, there is now memory on the computer.
Run the software and give it a try
Speaking of testing, this is the strengths of Xiao Bian. Xiao Bian recommended that the memory test be conducted using MemTest64 (comment reply “memory test†to obtain download address http://pan.baidu.com/s/1jIpCmF0).
This software is a green version. After downloading and decompressing, you do not need to install it. Double-click it to run it. Click Begin Test on the interface to run it. Note that when you run this software, the computer can't perform any operations and the memory is completely occupied. It takes about two hours or so to run a full test. Also, MemTest64 automatically stops when there is a memory error, which is very intuitive.
If you run through the test, it means that the memory itself has no problem and you can use it with confidence. And if it is the old memory + newly purchased memory composed of dual channels also passed this test, indicating that there is no compatibility issue.
Apart from this MemTest64, there are actually many test softwares. Xiaobian hot recommend 7 PC test software "in the small series to give you a list of commonly used tools. These softwares can not only test the performance, but also have a bigger role in the "test machine" test. To put it plainly is to load the system and see if there are any errors in the operation of the computer. I believe these can help everyone. There is a need for small partners to try. Look.
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