Good day! I need help with my PC. System specs are on the left. What happens is every time I press the power button, the PC lights up for 5 seconds then shuts down again then lights up again then shuts down again. No beeps and nothing displays on the monitor. It worked just a few hours before. I did a proper shutdown the last time I used it. What I've tried to do so far is just to clear CMOS by pressing the button on the IO panel on the board. I'm thinking it might be the PSU. The only thing is I don't have an extra PSU that I could try to test the system with. I'm planning to buy one maybe in next few days but before that, I would like to know what you guys think before I spend some money. Thanks in advance!