On-board st-link programmer on F411 Discovery board cannot connect
In normal operation it will not be a noticeable source of heat. 
  
  Im guessing that my ST-Link SWCLK pin is burned and is hard pulled low.  


I replaced faulty STM32F103 which served as st-link and programmed it with UART and bootloader.
Works like a charm, so if anyone has same problem, best way is to replace it.