High pitch sound coming out from OrangePi PC board

dogriz

When I plug in my OPi PC board, strange high frequency sound comes from it, not loud, but iritating, like coil buzzing.
On my other boards (three Opi One models tested) everything is normal. I use modified computer PSU to supply power to boards.
Does anyone have similar problem and is there a solution? (hammering is not an option)