upboard can't power up sometimes

Platform: up board
OS:Ubuntu 14.04.5 LTS (kernel :4.4.0-2-upboard)
power supply: 5V/6A OR 5V/4.5A

Problem: up board can not power up, there is no any output(hdmi sigal, usb or eth power) from up board, the blue light beside HDMI is on. We used 5V/4 for some times,but always use 5V/6A later. up board is inside our robot, sometimes up board can not power up, sometimes is ok. How to check this problem, is it related with temerature, or other problem?


  • Aling
    Aling Guest Posts: 561 admin
    Hi lin,

    It sounds strange. Do you only have one UP board ? Are you able to verify it it also happens in other UP boards.
    The board is designed to operate at ambient temperature 0-60C.
    If everything is in spec, but there is still stability problem, please claim your RMA via UP shop.
  • jianliang
    jianliang New Member Posts: 8
    It is ok after unplug and pulg the BIOS battery.