How normal is the score of SSD?

Usually 400. Take the score in the following figure as an example to see if it is normal:

1, in the upper left corner, there are two lines of green words. One said that AHCI was enabled, and the other said that 4K had formed an alliance. These two should be green, and the Chinese version is the text on it, which is very intuitive. The English version can say OK, and it is also green. If it is red, there is a problem. AHCI is not open or 4K is not aligned.

2. Among all the numbers, the first number, the number in the upper left corner, is 497, which is the speed of continuous reading. If this number is less than 270, it is likely that the SSD is connected to the SATA2 interface. Generally, there should be at least 400 SSDs above 128.

3. The following scores mainly depend on reading speed. If 4K is less than 10M, there is something wrong with the disk or drive. If it is 64K-64K, less than 100M is usually problematic.

Extended data:

1, solid-state hard disk, referred to as hard disk, is a hard disk made of solid-state electronic memory chip array, which consists of control unit and storage unit (FLASH chip and DRAM chip). Solid-state hard disk is exactly the same as ordinary hard disk in terms of interface, function and usage, and the product shape and size are also exactly the same as ordinary hard disk. Widely used in military, vehicle, industrial control, video monitoring, network monitoring, network terminals, electric power, medical care, aviation, navigation equipment and many other fields.

2. The working temperature range of the chip is very wide, including commercial products (0~70℃) and industrial products (-40~85℃). Although the cost is high, it is gradually spreading to DIY market. Because solid-state hard disk technology is different from traditional hard disk technology, there are many emerging memory manufacturers. Manufacturers only need to buy NAND memory and cooperate with appropriate control chips to manufacture solid-state hard disks. SATA-2 interface, SATA-3 interface, SAS interface, MSATA interface, PCI-E interface, NGFF interface, CFast interface and SFF-8639 interface are widely used in the new generation of solid state drives.

References:

Baidu Encyclopedia: Solid State Disk