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Samsung SSD T5 external drives mounting problem with NUC Kit


Hi, Intel NUC Kit NUC8i7BEH. I have huge problems with all Samsung SSD T5 external drives. USB 3.1 Gen2. Original cables. I have several drives, different capacities 250GB, 500GB and 1TB. Drives can't connect. Both Front USB Ports USB-A to USB-C. Sometimes after repeatedly disconnecting and reconnecting the drive will connect, but the write speed is very slow. Other times, the writing ends with an IO error. But if I connect the same disk to the monitor USB port it connects right away (only with 40MB write speed) with Macbook pro USB-C to USB-C cable or different computer the discs work perfectly. The problem has been for a long time about more 2 months. But not from the beginning. The drives were working normally before. I'm 100% sure something is wrong with the Intel NUC USB connection or IO drivers or i dont know but I'm getting very flustered. Please help me to get my NUC working again as before.

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5 Replies

Hello Leoborec,  


Thank you for posting on the Intel® communities.   


In order to better assist you, please try the following:  

1) Perform a BIOS recovery:


- Steps:

1. Download the Recovery BIOS update file (.BIO) and transfer it to a USB flash drive.

2. Turn off the Intel NUC (not sleep or hibernate).

3. While the Intel NUC is powered off, plug the USB flash drive into a USB port.

4. Press and hold down the power button for three seconds, then release the button before the 4-second

shutdown override.

5. You will see the Power Button Menu. Select F4 to start the recovery process.

6. Wait 2-5 minutes for the recovery process to complete.

7. The Intel NUC will either turn off automatically when the recovery process is complete, or it will prompt

you to turn it off.

8. Remove the USB flash drive.

9. Restart the Intel NUC.

2) Load BIOS defaults:

- Press F2 during boot to enter BIOS Setup.

- Press F9 to load defaults.

- Press F10 to save and exit BIOS Setup.

3) Clear CMOS:

1. Disconnect the computer power cord from the AC power source (electrical outlet or power adapter).

2. Disconnect all devices with an electrical current coming in from the computer.

3. Remove the bottom chassis cover.

4. Remove the board from the chassis to access the battery on the processor side of the board.

5. Disconnect the battery from the connector to remove the battery.

6. Wait for about 3 minutes for all power to get discharged from the system. (You can also press and hold the power button as well.)

7. Insert the battery back into the holder.

8. Reinstall the board in the chassis.

9. Replace the chassis cover.

10. Reconnect all peripherals and the power adapter.

11. Press the power button.

You can skip the 3rd step if you do not feel comfortable removing the motherboard from the chassis. Please let me know if you need further assistance.


Deivid A. 

Intel Customer Support Technician 


Hi, I did steps 1 and 2 but unfortunately no change.   I don't want to destroy my NUC completely, so I didn't do step 3. The disk SSD T5 MU-PA1T0B/EU won't connect. On macbook pro disk works. The same with other SSD T5 with diferent capacities. 


Hello Leoborec, 


Thank you for the information provided 


I will proceed to check the issue internally and post back soon with more details. 


Best regards, 

Deivid A.  

Intel Customer Support Technician 


Hello Leoborec, 

Based on the research and tests performed, we noticed that this may be a compatibility problem with the drives. However, to discard that is an issue with the NUC, we recommend getting in contact with us directly for warranty options.

Please use the link based on your country:

1. US, Canada: 

2. Europe, Middle East, and Africa: 

3. Asia-Pacific: 

4. Latin America: 


Deivid A. 

Intel Customer Support Technician 


Thanks, but I am from the Czech Republic. There is no contact in the Czech Republic, so I really don't know who can advise me.