New PC Unexpected Shutoff

[jaredpackard98]

So recently my PC started shutting off on its own. It hasnt had a problem what so ever until last night. I switch from my monitor to my TV (which are both very near so all I did was switch the HDMI) and start watching a movie. The system was on for only 20 minutes and it cuts off.
I checked out my Computer and don't know the issue. Im a tech and still learning some things. But this is a brand new system ive built! Its not m first and this is extremely frustrating.

Specs:
AMD Ryzen 5 1600x
XFX Radeon Rx 480 (blower edition)
Gigabyte GA-AX370 Gaming
Samsung 850 Pro SSD
Corsair H100i water cooler
Some wifi card that is in there but dont use anymore lol
And a Thermaltake 650 W RGB PSU
It also has a single RGB remote strip. And 3 NZXT Fans all on full blast. Everything is as it came clock speeds wise. I havent touched anything. Temps are great.
But this problem continues even switching back to my regular monitor.

What could be causing this? Any ideas..

 

[rocktalkrock]

If it is just instantly going dead, i would take a close look at the power supply. Do the problems have a consistent pattern? Is the PSU overheating and shutting itself down? Is the PSU fan working properly?

 

[jaredpackard98]

If it is just instantly going dead, i would take a close look at the power supply. Do the problems have a consistent pattern? Is the PSU overheating and shutting itself down? Is the PSU fan working properly?

I checked the PSU, the fan was spinning, it wasnt getting hot, it wasnt making a smell either. I don't have any way to see if its just not drawing enough power or anything. Any other ideas?

 

[rocktalkrock]

If it is just instantly going dead, i would take a close look at the power supply. Do the problems have a consistent pattern? Is the PSU overheating and shutting itself down? Is the PSU fan working properly?

I checked the PSU, the fan was spinning, it wasnt getting hot, it wasnt making a smell either. I don't have any way to see if its just not drawing enough power or anything. Any other ideas?

There is not much to go on, and it's not a common problem. Typically a faulty system will not boot up or it will freeze during use with a blue screen of death, not just suddenly go dead. For now make sure all your drivers and the BIOS are up to date, scan for viruses and malware and keep a hardware monitoring program like Speccy open while your using the the computer. Try and look for a pattern as to when it stops working. A failing power supply can be hard to diagnose because often it will not show a clear pattern for you to see.