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my computer is turning itself off not just reboot completely instant power off power supply perhaps?
deadeyedic30 said:What are you doing on the pc when it shuts down, are you surfing or gaming. How long has it been water cooled ?
deadeyedic30 said:It's a fair bet. Do you have a friend with a big psu that you could borrow to check before going out and spending the best part of £100 so you are completely sure that it is the source of your problems.