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Why is my external SSD hard drive not reaching full speed?


There are several reasons why the external SSD hard drive cannot reach full speed!


 

1.) ... The reasons for not reaching the full hard disk speed!
2.) ... More information about the SSD hard drive speed!



1.) The reasons for not reaching the full hard disk speed!

First, the correct USB driver should be installed, the external SSD can only be used with USB 3 or higher. See ►►  USB net gross data rate, USB 3, 2, 1?

Likewise, if you don't have an SSD, you should ensure sufficient power with SSD hard drives, the power supply is rarely the cause. See ►►  USB-3 is just as fast or slow as my USB-2!

With Windows 10 you get over 300 MB / second with Windows 7 you get> 200 - 250 MB per second!

Here is a measurement with  IsMyHdOK :

Samsung SSD on USB 3.0 under Windows 10 ( ... see Image-1 )
the same hard disk under Windows 7 on USB 3 ( ... see Image-2 )

PS: The picture is in German think of a point at the place of the comma!

(Image-1) External SSD hard drive Samsung under Windows 10!
External SSD hard drive Samsung under Windows 10!

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(Image-2) External SSD hard drive Samsung under Windows 7!
External SSD hard drive Samsung under Windows 7!

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2.) More information about the SSD hard drive speed!


There are now SSD NVME that reach over 6000 MB per second, but it is always the weakest link in the transfer chain that decides how fast the maximum possible transfer rate is.

For external devices, the USB speed must be taken into account

►►  USB net gross data rate, USB 3, 2, 1?





FAQ 9: Updated on: 8 May 2022 09:06 Windows


► ► ► ► ... more information about the software IsMyHdOK     

IsMyHdOK

How can I test another partition or drive!


It is easy to test another partition or drive with this test tool under MS Windows 11, 10, etc. Desktop and MS Server OS Content: 1. Switching
IsMyHdOK

Can I still test my hard drives on MS Windows 11 OS!


The speed of the hard disk SSD / HDD / USB / SD can still be tested / measured on MS Windows 11 OS Even with the latest  Microsoft Windows 11  you can
IsMyHdOK

Measure only single read / write speeds on the SSD?


Sometimes you just want to measure individual write / read speeds on the SSD, USB sticks or SD cards with this tool it is possible under MS Windows 1. Start
IsMyHdOK

The hard drive test APP on my MS Windows OS is in the wrong language?


The hard drive test application is multilingual and it is seldom that it appears on MS Windows 11, 10, etc., whether the desktop or server OS is in the
IsMyHdOK

Why are there different values ​​for the M.2 SSD?


Depending on the controller installed on the M.2 SSD or other SSDs, you get different values, the driver or the Windows version, as well as the update, play
IsMyHdOK

Why the IsMyHdOK , there are similar programs!


The answer to this question is quite simple, but you can also call FORD and ask, why they produce cars if there are Chrysler But joking aside, There are

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