How about the API logs?

Can you post both system logs and Cgminer API logs here and don't forget to use code tag a button with # icon. Alternatively use pastebin.com if you have a character limit here then share the URL here.

I search a bit it seems that some firmware has a different PSU(it means it is only made for a specific PSU)so like Philipma said check the PSU label or the exact PSU model. Tell us where we will try to find a firmware that will work on that miner with other PSUs.