PC Bootup Fail

[Cole_28]

Hi, I was recently on a 2 week vacation in Ohio and when I came back my Computer was having some troubles. The PC was fine before the vacation but not anymore. Anyways, when I turn on the PC, and go into Windows, about 10 seconds into it the computer shuts off. I turn it on again and while I'm typing in my Windows password it turns off. Specs are: rx480, amdFX6300, 16gb ram, MSI Gaming 970 mobo, and 2 hdds and one SSD for booting. I am sure the system is not overheating because it's only on for 10 seconds.. Any ideas?

 

[CountMike]

A place to start would be to reconnect all parts specially leads from PSU. That failing to do any good, PSU would be first to replace.