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External SSD Compatibility Issue

sy

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Dear experts:

I bought one portable SSD device(USB3.1 Gen2 10G). And I have two AMD X570 platforms. The hardware for both platforms is the same, including CPU(AMD Ryzen5 CPU), Win10 OS, and system SSD. The only difference is the two mother boards are the same brand but different model.​
Strange thing is when I plugged the SSD device into one of the X570 mother boards, it has speed drop issue, but if I plugged it into another X570 mother board, it doesn’t. I am sure the ports I plugged into are USB3.1 Gen2 10G on both mother boards.​
Here are my questions:​
1. Could it be driver difference caused compatibility issue(I installed same Win10 OS with the same ISO and I did not update OS)?​
2. Could it be BIOS difference caused compatibility issue?​
I have no knowledge about driver and BIOS. Could you experts here help explain why to me?​
Thank you very much!​

Best regards,
 

BradtheRad

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speed drop
Are you referring to disk (ssd) transfer speed? Is this measured by utilities which test various functions individually? Read time, write time, latency time, etc.?

The only difference is the two mother boards are the same brand but different model.
Are security/firewall settings identical? Does the exact same user account have permission for all operations? This may affect speed of disk access, or file creation, or file access.

To examine driver details: Open Computer, right-click a disk, navigate among options to select Details. When you find it you'll see version number and/or date.
 

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