User Guide

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Appendix

File:Usb3-frequency-interference-papers.pdf:
https://raspberrypiwiki.com/File:Usb3-frequency-interference-papers.pdf

How to Run Raspberry Pi 4 or 3 Off an SSD or Flash Drive: Does the X825/X855 support USB boot
(https://raspberrypiwiki.com/Does_the_X825/X855_support_USB_boot)

Tutorial – How to Initialize, Partition and Format a Brand New SSD in Windows: File:Tutorial Initalize
New SSD.pdf(https://raspberrypiwiki.com/File:Tutorial_Initalize_New_SSD.pdf)

How to set up OpenMediaVault on Raspberry Pi 4:
https://www.addictivetips.com/ubuntu-linux-tips/set-up-openmediavault-on-raspberry-pi-4/

Properly Mount USB Storage on Raspberry Pi:
https://raspberrypiwiki.com/Properly_Mount_USB_Storage_on_Raspberry_Pi

Auto Mount an NTFS USB Drive on Raspberry Pi:
https://raspberrypiwiki.com/Auto_Mount_an_NTFS_USB_Drive_on_Raspberry_Pi
FAQ
Q1: Why system crashes while using USB Boot, and shows drive was removed?
A: Please try to format the HDD/SSD especially when using a new HDD/SSD.
When you find that HDD/SSD is not recognized, please also try formatting the HDD/SSD to check.
Q2: Don't detect HDD/SDD?
A: This is a complicated question, but we can check it from these points. Please refer to How to check the
X825.
The power supply is very important to X825, some low quality power supply will damage your board or not
recognize the HDD/SDD.
Q3: Do I need an external power source supplying for X825 board?
A:
1. When use the X825 V2.0 with X735 and Raspberry Pi 4, you power via DC jack or Type-C or Micro USB of
X735 board. Recommend DC jack or Type-C.
2. When use the X825 V2.0 with Raspberry Pi 4 only, you can power ①Via DC Jack of X825 V2.0②Via
Type-C port of Raspberry Pi 4.
Q4: Does the X825 support USB boot?
A: Please refer to Does the X825/X855 support USB boot.
Q5: Why X825 cannot recognize the HDD when doing big data transfer?
A: This situation do not related with the hardware, please try to check and update the firmware. We have
test continuous copy of data that has exceeded 15GB in windows.
Q6: What is the polarity of the X825 DC 5V in port ?