I accidentally switched the voltage switch at the back (dont ask why i dunno myself) and the PSU blew with a little bit of smoke coming out. Thankfully the PC was off at the time and later i unplugged the entire unit and opened the side pannel to see whether there was any visible damage. None i could see or smell the components (mobo, graphic card, harddrive) everything seemed normal. Im worried sick that was there any component damage? Are there failsafes inbuilt in the PSU to prevent any further damage to components.