Topic: Power on and off symptom...PS4

Ok so I have this original PS4 system, an older system of mine given to me, and everything was working fine last time I had it on last week.

Last night I hooked it back up and it powered on for about 10 seconds then powered off. Blue light came on first and then the white light for a moment then shut off. The screen read something before it shut off but I didn't get a chance to read it.

The problem kept happening only it would happen immediately if I kept retrying it, and it would power on briefly longer if I tried it once every couple hours or so...

I did some research online and did the "washer fix" with the ACU heatsink clamp screws..

While I had it open a bit, I went ahead and tore it all down and cleaned it out. Thermal paste looked good so I didn't bother with it...slapped it all back together to get the same result.

I assumed maybe the 3 wire connectors from the motherboard to the power supply needed swapped around, so I did.

Now I'm getting a blue light at start up and then these 3 quick beeps at power on, and then shut off, and nothing shows on the TV screen as if I didn't power the system on.

If anyone can tell me how to troubleshoot the problem, I would greatly appreciate it.

Thank you for your time.