Guide to buy SSD
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With the rapid growth of information today chairs , we can easily buy a personal computer configuration is very high , such as CPU 4 cores , DirectX 11 graphics card , 16GB Ram some Terabyte hard drive . However, with such a configuration but still slow startup computer and run the program very sluggish , the causes are largely derived from the HDD , as it still is the latest evolution of the machine components computer today . So , choose the SSD will be one of the most worthwhile upgrade for your computer , the following article will explain to us what is the SSD , its role and some basic knowledge to be able to choose a SSDs fit .
NeoVay What is SSD ?
SSD stands for Solid - State Drive - solid state drive , while HDD stands for Hard Disk Drive , or hard disk drive activity in muscle . With the HDD , the data is written to the disk blade (called platters ) , for example, in which you drive 1,000 MP3 tracks , when you want to open a certain song , from the drive will sweep up the blade disk for MP3 file that , it takes a period of time ( called the seek time) , the same as you find one shirt in his closet , but because the seek time is extremely small , only a few milliseconds , so most of us I do not see this delay . However, because the mechanism that the HDD containing the data , they will become fragmented , leading to the access speed is reduced (as we take time to find one in a library book ) , and also due to limitations in manufacturing technology that today only increased HDD capacity, but mostly very slow speed .
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SSD for normal -size PC 2.5 " SATA interface used ( in this article we are not talking about using PCI Express SSDs ) , but it is still compatible with the desktop using 3.5" hard drives , you just use a tray conversion is done , then it is usually included in the SSD that are , if not , then we can also buy at the store that sells parts , accessories computer .
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With the more advanced SSD , we do not use the blade as well as the first disk from which the data will be stored in the flash chip , so despite the fragmented data on the HDD , this just does not affect the speed access the data , so as to find data retrieval takes place almost immediately without delay . Furthermore , because the flash chip should use data stored on the SSD safer types of HDD and also speeds many times faster , in short, SSD can speed up a computer's tasks as follows :
- Reduced startup time operating system .
- Launch the software faster .
- Save the file and speed of data access is extremely fast.
- Anti- shock absolutely no noise , cooler .
- In summary , the overall performance of the machine is increased.
Price of SSD are strong downtrend , currently at about 1 USD / GB , but still higher than normal HDD several times , but this is also the price is acceptable for many users today. Buy SSD is not difficult , but there are many things that distract us , such as speed , brand ... so, what are the criteria to consider when choosing to buy 1 SSD ? We will clarify shortly.
Maximum operation speed
With today's communication Sata 3 ( 6Gpbs bandwidth ) , the SSD can achieve read and write speeds are very fast , up to more 500MB/giay , while the SSD uses SATA 2 speeds are much lower , in about 200 - 275MB/giay , these parameters are published and manufacturers specify the packaging of the products that we can buy easily found .
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Measure the access speed of 1 SSD sata 3
Type of memory chips , MLC or SLC
The current SSD uses two types of memory chips , the MLC (multi level cell ) and SLC ( single level cell ) , the difference between them is that MLC can store more data per cell , and also easy to produce more , so the price of SSDs using MLC chips form will be priced cheaper than the SLC . The manufacturers use MLC SSD specialists may be mentioned as Corsair , Crucial , Kingmax , Adata ... But because more data storage on a cell than MLC chips should also have high error rates than the SLC , but it is still rather rare occurrence of such common data loss on HDD .
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Intel chips used their SLC SSD so often dearer than
Communication support
Currently we have Sata III interface with up to 6Gbps bandwidth , the use of this standard SSD can achieve a read speed , write up to more 550MB/giay . And to take advantage of this bandwidth , you should check whether your computer supports Sata 3 or Sata only I ( 1.5 Gbps ) or SATA II ( 3Gbps ) or not , of course, also compatible SSD Sata 3 contrast to Sata I and II , but also the speed is reduced accordingly.
ECC error correction function
ECC ( Error Correcting Code ) as a function of SSD can help detect and correct data errors arising during use , to help limit the data we unfortunately lost or damaged . However, ECC is equipped only on the high-end SSDs and therefore their cost is more expensive than conventional SSDs lot, similar parameters MLC / SLC and SATA , ECC is also the manufacturer and clearly announced on the packaging ( and website ) of the product are known to the user .
Selecting the appropriate brand
Currently there are many companies involved in manufacturing SSDs , however, the absence of extremely famous names in the array HDD Western Digital , Seagate or Hitachi , but not so that the SSD market is less active . When choosing to buy a certain product , apart from the usual price , we also dominated by one or another element , which is the brand , if you like this brand or friends it was " recommended " then of course it would be better sympathize with us. Therefore , ask your friends or acquaintances have used SSD to receive advice from them , or you can also read the reviews about SSD purchase online to find a suitable SSD .
Do ideological work with SSD
With $ 100 in hand , you can buy 1 HDD 2.5 " 1TB , but with the SSD drive is only 128GB , is basically the same with some money , then we only have SSD storage levels by 1 / 8
compared with conventional HDD . Therefore, when choosing to buy SSD , you have to work for myself by thinking about the present limit of its capacity . However, we should clarify that the high speed of the SSD over HDD many times , that anyone of us can easily see , and the SSD is used to install the operating system and software , which helps increase performance of the computer , but it is rarely used to store more data . Therefore, the amount sacrificed in exchange for the speed of the SSD is a job worth the money .
Moving SSD from HDD via
As noted above , because of limited storage capacity compared with the sale price , so we often use the SSD for OS and software installed , so the conversion, usually the first thing to do is to convert the data . We have 2 options : Install new OS is used or transferred from the old OS HDD over SSD .
Option 1 : install the new OS is very simple . Just conduct that you want to reinstall the OS , install drivers and software necessary , that 's it .
Option 2 : Transfer from HDD over SSD . This work is a bit more complex , we will need to transfer application that supports all of the data from this drive to another drive . With Windows , you can use the software 's famous Norton Ghost or Acronis True Image or any other similar software .
If you are not familiar with this issue , then you should have someone knowledgeable help , because the 2 options are needed on basic computer knowledge and improve .
Expand the storage capacity free
As noted above , there is a smaller capacity SSD HDD several times , so we have to do ideological work when switching to SSD . However , there is still some wiggle room , but one of them is extremely convenient and it 's free : using cloud storage services . Indeed , cloud storage is very popular nowadays , and companies often offer us gift a few GB free , very simple . You can refer to the past few services like Dropbox , SugarSync , SkyDrive , Google Drive , iCloud ( iOS users ) ...
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A few little tricks to boost performance SSD
SSD has basic access speeds and faster response HDD several times , however, there are a few more tips to help increase performance , SSD life for which we can apply as follows :
Enable TRIM
TRIM is a function of the operating system to help it manage deleting data on SSD thoroughly , that is when we delete certain things on SSDs , that data will be deleted permanently without being restored . Thus space on the SSD is actually , the new data will not be overwritten , which overlap . Thus , TRIM will indirectly increase the longevity of your SSD drive , but it also has a small drawback is the time to delete the data will take a little longer .
Basically, Windows Vista and Windows 7 operating system from Microsoft will default to enable TRIM for SSD support this functionality , the Mac OS , we have to make some small steps to enable TRIM for non-Apple SSD provided , references in this article .
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Disable Hibernate ( hibernate )
Mac OS users should not care about this function . Particularly, Windows Vista and Win 7 have a rather interesting function is Hibernate . It will record the entire current state of the computer from RAM to the hard drive , at the time the computer boots next you'll be 100% exactly like the status quo , very convenient for people who do much of the same time . Note that other Hibernate Restart / Shut Down PC .
As recorded data from RAM to the hard drive very Hibernate will cost you a significant amount , with Windows Vista , it takes exactly the same amount of RAM where computers are, for example, 8GB RAM , and I will
consuming 8GB hard drive for Hibernate . Windows 7 is a bit more clever , but it also took a hard drive capacity by about 3/4 of RAM . Therefore, turn off Hibernate will save quite a bit of space for you , especially when we have a small SSD , 64GB examples only .
Off Hibernate is very simple , we run the Run window ( Windows + R ) or Command Prompt window and type the following command :
powercfg / hibernate off - > Enter
Similar : powercfg / hibernate on - > Enter to turn the Hibernate function when needed .
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Do not run Defrag app for your SSD
As noted above , the conventional HDD , the data will be written to the disk blade , and from there the task of finding them when you need access to . It so happens that the HDD is a condition that one data file (probably ) many parts are stored in different places in the disk blade , resulting in the retrieval speed is reduced significantly , known as the fragmentation ( fragment ) . So the OS will give us a function called Defragment ( Defragment ) to collect the pieces of data together to reduce this situation .
However, SSDs structure as well as other mechanisms HDD activity . Data is stored on a Flash memory chip , so despite being fragmented , but do not use SSD to detect from accessing data should still take place immediately. Therefore, should not and absolutely should not run defrag app for your SSD . Doing this meaningless , or even harmful to the SSD because it began to make an overworked ( SSD 's lifespan is calculated according to the number of write / erase data defragmentation programs that move data from place to another ) .
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Conclusion
These are just the basic knowledge of SSD and its differences compared to HDD , as well as some tips to apply for SSD . The SSD option but that hardly easy , but as it is very easy , because it depends very much on the price factor and the level of user acceptance , as mentioned above. Therefore, the final decision remains in you , that you want to switch to SSD or HDD continues with only traditional or not .
Refer Lifehacker
source : http://www.tinhte.vn/threads/1443934/
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