Global Moderators

@jugg
是的！通用的。

@jugg
POE需要外部供电模块，和树莓派POE模块是兼容的。
交换机提供超过15W的功率即可。

@2077205173
镜像写入U盘以后，默认就会从U盘启动，你可以去掉EMMC和TF卡模块，机器就会正常进入桌面。

@lexarion
The CM5-EVB board typec interface is only used as a power supply interface and does not need to be connected to a computer normally. And the normal TYPEC input interface has at least 20V OVP function. I don't know why the laptop motherboard is damaged?
The interface for downloading CM5-EVB images is USB 3.0. Please refer to the following document for operation. Thank you for your support.
https://wiki.cool-pi.com/en/home/cm5_quick_start

@Momo-0
Need to cooperate with testing first to determine where the problem lies?

1. Connect the LCD cable and use a multimeter to test the ground impedance of the two PINs shown in the figure below
2. Disconnect the LCD cable and use the same method to test the ground impedance of two PINs
   Test method: Set the multimeter to the diode position, connect the red probe to GND, and connect the black probe to the signal.
   

@jugg
CST时间和UTC时间的区别，并不是不能同步。也不是RTC不工作。系统层的问题百度一下。

@jugg
从上面的信息能够确认RTC的时间是正常的，关机时候是9:49，再开机是：9:57，只是RTC时间没有同步到系统。
日志也提供了方法：

timedatectl set-local-rtc 0

@jugg
1.确认你外部电源供电电压是多少V
2.关机之前查看一下硬件RTC的时钟情况，使用如下命令：

cat /proc/driver/rtc

3.关机一段时间再开机，再次查看硬件RTC时间

cat /proc/driver/rtc

然后把结果发上来。

@jugg
测试如下核心板位置，关机的状态下电源是否正常？