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X735
,==FAQ==
<span style='color:red;'>1.How to use the Auto Power On jumper and Latching Switch Jumper on X735 V2.1 version board?</span>
Answer:
<span style='color:red;'>2. Which GPIOs are used in the X735 V2.1 script?</span>
Answer: The GPIO4, GPIO17 and GPIO18 is used for power management. And the rest GPIO pins are available to use.
<span style='color:red;'>3.What if I connect the x820 XH2.54 5v to the IN of the X735, and then connect the power supply to the x820. Will the safe shutdown work?</span>
Answer: This is no suggested, because power supply for X820 cannot be controlled by X735 and safe shutdown won't be implemented as well.
<span style='color:red;'>4.Does the x735 power board work with the rock64 board? is the 40 pin connector compatible with the rock64 40 pin connector?</span>
Answer: In fact, we didn't test X735 based with ROCK64, and we didn't consider ROCK64 board when we wrote a safe shutdown shell script, so we think X735 is not compatible with ROCK64. Also the
<span style='color:red;'>5. What is the pinout for the PWR Switch?</span>
Answer: Please refer to here: [[PH2.0 Conector Specification]]
<span style='color:red;'>6.Does the X725/X750 support to use with X735 together?</span>
Answer: Please refer to [[Connecting the X725 UPS to the X735 Power Supply]]
<span style='color:red;'>7.Does the X735 V2.1 support to check the speed of the fan?</span>
Answer: Sorry, no, X735 V2.1 is not support to check the fan speed by software, please refer to new version X735 V2.5.
<span style='color:red;'>8. Why my RPi4 will switched off directly after connected to the X735?</span>
1. Please confirm all product connection is correct first. If you are not sure about the connection, please attach some pictures and contact us for help.
* Press and hold for more than 8 seconds, will the blue LED go out?
<span style='color:red;'>9.How to remove/unload the X735 script from your Pi?</span>
A: Open the /etc/rc.local file (sudo nano /etc/rc.local or vim /etc/rc.local to open the /etc/rc.local file;), and seach x735, then comment out that line (add # on the begin of that line);
<span style='color:red;'>10. Can the x735 work in harmony with the x765 POE? </span>
* A: Yes, but the X735 must be set as "AUTO ON" mode.
<span style='color:red;'>11. Does this supply safe shutdown when power is cut? Or just safe shutdown when power is constant and a signal switch is cut</span>
* A: Sorry, no, the X735 does not support safe shutdown when power is cut. Please consider [[X728]] if you need this function.
<span style='color:red;'>12. How to delete X735 script completely?</span>
* A:
(1）sudo nano /etc/rc.local , delete "x730pwr.sh", then save
(3) sudo rm /usr/local/bin/x730shutdown.sh
<span style='color:red;'>13. Can I connect DC supply 5V and at the same time connect Powerbank to USBC input of X735 as a some kind of "UPS"?</span>
* A: No. It is not support to do so.
The POWERBANK output may not have a polarity protection circuit, and there is no path management for this connection.
<span style='color:red;'>14. After installing the script, the fan does not turn?</span>
* A: Please run the following command and tell us the result. Or upgrade the system to reinstall the test.
"/Home/pi/x735-v2.5" indicates the path where pwn_fan_control.py is located.
<span style='color:red;'>15. Is there any way to check or verify if X735 is physically connected to the Raspberry Pi?</span>
* A: GPIO17=1, X735 connected, GPIO17=0 , X735 discontinued.
<span style='color:red;'>16. What is the current draw with power off?</span>
* A: It is less than 1mA.
<span style='color:red;'>15.Why does the following message appear: ''this power supply cannot supply 5 a power to peripherals with be restricted'' when using raspberry pi 5 hardware?</span>
* A: The following settings are required， from the command line or terminal window start by running the following command:
sudo rpi-eeprom-config -e
Change the setting of '''POWER_OFF_ON_HALT''' from '''0''' to '''1''' ,
Then add '''PSU_MAX_CURRENT=5000''' at the end of the file that reads like this:
[[File:X120x setting1.png]]
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