Samsung 2TB T5 SSD Dropped Down To 45MB/s Read/Write Speeds, CrystalDiskInfo Shows 99% Health

[Inferius]

Pretty much title, been using the T5 SSD to film videos, when doing a file transfer today, the Read/Write speeds suddenly dropped, and I can't get them to recover. CrystalDisk shows 99% health, I don't think there are any errors. I've gotten 400-500 MB/s out of this SSD before. Does anyone know what could be going on? Thanks for any help.

[Electronics Wizardy]

Try a different port. That seems like usb 2 speeds.

[Inferius]

2 minutes ago, Electronics Wizardy said:

Try a different port. That seems like usb 2 speeds.

Tried the other ports, ones I know are 3.0 or higher, with the same result. 

[Electronics Wizardy]

1 minute ago, Inferius said:

Tried the other ports, ones I know are 3.0 or higher, with the same result. 

Can you try a different system?

 

Does it speed up if you wipe the drive and do a full trim?

[Inferius]

Just now, Electronics Wizardy said:

Can you try a different system?

 

Does it speed up if you wipe the drive and do a full trim?

I can try a different system, later when I get home. How would I go about trimming the drive? I know how to do it on my Samsung SATA SSDs, but I'm not sure about this portable one.

[Electronics Wizardy]

1 minute ago, Inferius said:

I can try a different system, later when I get home. How would I go about trimming the drive? I know how to do it on my Samsung SATA SSDs, but I'm not sure about this portable one.

Depends on os, but with windows 10, you can use optimize-volume -retrim -driveletter D in powershell.

[Inferius]

36 minutes ago, Electronics Wizardy said:

Depends on os, but with windows 10, you can use optimize-volume -retrim -driveletter D in powershell.

The powershell command didn't work, I don't believe this drive supports TRIM.

[NewMaxx]

Well with an external SSD you're typically using the SCSI analogue command UNMAP rather than ATA's TRIM. Although, Windows PowerShell command Optimize-Volume with ReTrim option should do TRIM and UNMAP (assuming you use the correct drive letter), but Window's "optimize" (under Defrag) does the same thing.