===Enable RTC ===
Due to different Since X650 '''V1.5''', we have used the same '''pcf8563''' RTC chips chip with PiKVM official PiKVM hardware, so you don't need to do anything, just skip this step, the RTC will work fine. If you are using '''V1.3''', you still need to do this step. For V1.3 version, you need to '''configure RTC''' to make RTC work normally.
Firstly, insert the '''C1220''' button battery. run the following command in web terminal window: