When you switch your pc on is the fan in the power supply spinning because if it isnt it will over heat then shut down but you wouldnt get any warning of this it would just shut off ?
the fan is working fine, i really havent a clue whats wrong with it, the pc was in Reece's room for a while but he never used it other than to bluetooth some pics onto it from his phone
when you alter the sleep settings in control options / power management are you clicking Apply before closing the options down or it wont save the alterations.Yeah i know you probably have but sometimes the simple things are easiest to overlook