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Q2Q3: Do i need an external power source supplying for x825 board?
Q3Q4: Does the X825 support USB boot?
Q4Q5: Why X825 can not recognize the HDD when doing big data transfer?
Q5Q6: What is the pinout for the PWR Switch?
Q6Q7: What is the polarity of the X825 DC 5v in port ?
Q7Q8: Why Raspberry Pi freezes when X825 is connected?
Q8Q9: Do X series NAS shields support UASP?
X825
,==FAQ==
Q1: Why system crashes while using USB Boot, and shows drive was removed?* Please try to format the hard disk especially when using a new hard disk.[[File:Drive-was-removed-while-usb-boot.png|400px|X825]] Q2: Don't detect HDD/SDD?
* This is a complicated question, but we can check it from these points. Please refer to [[How to check the X820|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, so it is strongly recommend to use this [https://geekworm.com/products/dc-5v-4a-power-adapter-with-eu-us-plug-for-x820-x800-x4000-x6000-expansion-board CE/UL/FCC/GS certificate DC 5V 4A Power Supply].
* Yes, here is the specification: 5V and 4A with a 5.5mm barrel connector, and do not power your Raspberry Pi via the Pi's 40-pin header and type-C socket at the same time.
* Please refer to [[Does the X825/X855 support USB boot]]
* This situation do not related with the hardware, please try to check and update the firmare. We have test continuous copy of data that has exceeded 15GB in windows.
* Please refer to here: [[PH2.0 Conector Specification]]
* For the DC port, the inside the +5V, the outside is GND.
* Please try to format the disk and test again.
A: 2.5", 3.5" NAS shield(such as X825 X829 X829 X835 X832) use JMS583 IC, and all supports UASP('''NOTE: Not supported UASP in earlier versions， produced before July 1, 2020'''), to prevent HDD/SDD from entering the hibernation state,