[SOLVED] My computer will not turn on anymore

[Tug Thuemmel]

Specs:
Gigabyte B450m DS3H
AMD Ryzen 5 2600
EVGA GTX 1060 6gb
1x8 ddr4 ram
1td wd blue hdd
250gb samsung ssd

Over the weekend, I switched out my case for a newer one (NZXT H500I). No new parts were added besides the added light controller and cable extenders for the cpu, motherboard, and PCIe. I finished putting everything together and the PC booted just fine like normal. I was on it for about 45 mins before it just turned off. The power LED was still on, so I pressed it, and nothing happened. I turned off the power supply and turned it on again, and the power LED was off. So I changed where I plugged it in and noticed something that I didn't before. for a split second the LEDs for the case would turn on and all the fans would move a little bit before stopping. This would only happen when the PSU would be unplugged and then re-plugged. So I took my PC upstairs and made sure everything was plugged in, and unplugged and replugged the CPU Motheroard and PCIe. Nothing. I thought it might be a motherboard issue so I used my brothers old motherboard(ASUS CG5270-BP003), Which was working perfectly beforehand. I plugged in the CPU and Motherboard, plugged in the HDMI to a monitor, and used a screwdriver for the power switch. The cpu fan turned on but there was no boot or display. Im starting to think that it is a PSU problem, which is weird because I got the PSU about 8 months ago, and it is an EVGA 650w one. Im looking for any help.
Thanks in advance!
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Update: I put in a graphics card and it booted fine on old motherboard making me think it was a motherboard problem, so I am sending in my newer motherboard in for a RMA. I hope the process is quick.

 

[computerjoe314]

Do you have another power supply you could try to run the system on?

 

[Tug Thuemmel]

I do not, no
I plan on getting one though

 

[Jordan42]

sounds like your psu died somehow

 

[Tug Thuemmel]

I just want to be sure before I order a new psu

 

[clarkjd]

I just want to be sure before I order a new psu

Go here:

"No POST", "system won't boot", and "no video output" troubleshooting checklist

"No POST", "system won't boot", and "no video output" troubleshooting checklist This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively troubleshoot your problem. 1.Did you...

forums.tomshardware.com

work through the list. WORK!, not just read! and see if you might have missed something

 

[Tug Thuemmel]

I have narrowed it down to the motherboard, so i sent it in for a RMA. some tiny part on the back broke. i ordered a new motherboard and was very carfeull when installing it. everything works now!