How to distinguish the good from the bad of the hard disk, how to distinguish the good from the bad

How do you test your SSD to know if it's good or bad? Nanny-style tutorials.

On the surface, it is not easy to distinguish, but at present, there are more common Seagate, Maxtor, WD, Fujitsu, Calendar, Samsung, etc. When detecting, it is recommended to use MHDD software to scan it, if it does not display the logical bad sector, there is no knocking sound when it runs, it is a good disk.

Test it with software, you can see how long the hard drive has been used, if it is 10 hours it is normal new, if it is used for too long, it may be second-hand.

1. Space: The bigger the space, the better. However, it is important to note that you should try to buy a hard disk with a large single disk space, as a hard disk with a large single disk space has much higher capacity than a hard disk with a small single disk space.

2. The speed of the hard disk: the hard disk with the same space, according to the capacity, 7200 r min is much better than 5400 r min. At present, the 7200 R min hard disk is popular in the market, while the 5400 R min hard disk is used in notebook computers.

3. Cache: The cache capacity of the hard disk determines the performance of the hard disk. The general hard disk cache is a physical cache, in this case, the larger the cache, the better, and now the mainstream 1TB ordinary hard disk has a cache of 64M.

4. Hard disk seek time: Seek time refers to the average value of the time spent by the hard disk to move the head from the beginning to the track where the data is located after receiving the system instruction, which reflects the ability of the hard disk to read data to a certain extent, and is an important parameter that affects the internal data transmission rate of the hard disk.

5. Interface type and interface rate: The interface type and interface rate of the hard disk are also a factor in the performance of the hard disk. The impact on the hard disk is not very large.

The quality of the hard disk interface directly affects the speed of the program and the performance of the system. The current interfaces are mainly IDE, SCSI, and SATA interfaces.

1. Spatial aspect. In terms of storage space, of course, the larger the capacity, the better, but we should pay attention to the single-disk capacity of the hard disk when buying a hard disk, the transmission performance of a large single disk is better than that of a small single disk, and the mainstream single-disk hard disk standard on the market is at least 1TB, we need to look for this standard to buy.

2. The number of hard disk revolutions. Now the number of hard disk revolutions is mainly 5400 rpm, 7200 rpm, 10000 rpm, 15000 rpm, desktop computers 5400 has basically been eliminated, Jiaying computer at least to choose 7200 rpm, and more than 10000 is usually used by servers, ** is also relatively high.

3. Cache. Cache is also a very important factor to distinguish the quality of hard disk, usually the larger the cache of the hard disk, the better its performance, the mainstream hard disk cache on the market is at least 64M or more, if it is lower than this standard, do not buy.

4. Interface type. The interface type and rate of the hard disk is also an important factor affecting the quality of the hard disk, the interface of the hard disk is mainly divided into IDE, SCSI and SATA these 3 interfaces, of which the IDE interface has been eliminated, the SCSI interface is mainly used for small computers, and now the mainstream interface is SATA, and the current transmission speed is the fastest.

Hard disk is a storage device on the computer, the quality of the hard disk will affect the speed of our computer, the current hard disk capacity on the market is mainly 500g, 1TB, 2TB, etc., there are many types of hard disks on the market, so how to distinguish the quality of the hard disk when buying a hard disk?

1. Space: In terms of storage space, of course, the larger the capacity, the better, but we should pay attention to the single-disk capacity of the hard disk when buying a hard disk, the transmission performance of a large single disk is better than that of a small single disk, and the mainstream single-disk hard disk standard on the market is at least 1TB, and we need to look for this standard to buy.

2. The number of hard disk revolutions: the current hard disk revolutions mainly include 5400 rpm, 7200 rpm, 10000 rpm, 15000 rpm, desktop computers 5400 have basically been eliminated, Jiaying computer should choose at least 7200 rpm, and more than 10000 is usually used by the server, ** is also relatively high.

3. Cache: Cache is also a very important factor to distinguish the quality of hard disks, usually the larger the cache of the hard disk, the better its performance, the mainstream hard disk cache on the market is at least 64M or more, if it is lower than this standard, do not buy the trouble.

4. Interface type: The interface type and rate of the hard disk is also an important factor affecting the quality of the hard disk, at present, the interface of the hard disk is divided into three interfaces: IDE, SCSI and SATA, of which the IDE interface has been eliminated, the SCSI interface is mainly used for small computers, and now the mainstream interface is SATA, and the current transmission speed is the fastest.

The above is to share with you how to distinguish the quality of hard disks when buying hard disks, I believe that you have a certain understanding of this after reading the above articles, I hope to help you.