Losing gpu input and chassis buttons stop working but computer stays powered on

[Aggex]

Specs:
Windows 10 64bit (upgraded from windows 7)
Gaming Chasis: Cooler Master HAF 932 Advanced
CPU: AMD FX-9590 8-Core 4.70 GHz
CPU Cooling Fan: Corsair Hydro Series H115i 280mm
Motherboard: GIGABYTE AMD 990FX
RAM: CORSAIR Vengeance Pro 32GB DDR3
Video Card: NVIDIA GeForce GTX 1080
Power Supply: SeaSonic X-1250 1250W
Hard Drives: Kingston 120GB SSD, Samsung SSD 1TB SSD, Western Digital HDD 2TB, Mushkin Enhanced Chronos 60GB SSD
Webcam: Logitech HD Webcam C525
Headset: Corsair Gaming VOID USB RGB Gaming Headset - Black
Keyboard: Corsair Gaming K70 RGB Mechanical Gaming Keyboard - Cherry MX Brown
Mouse: Razer Naga Chroma

So this happens at random intervals. Sometimes I can go days, weeks without this happening. And sometimes it happens twice in 2 hours.
Basically I'll be playing a game and my computer is running fine. I have corsair link up and watching my temps. All within reason. Then all of a sudden my monitor loses input, almost like the gpu crashed. And the power stays on, but the power button on the chassis doesn't work nor does the reset button. I physically have to unplug the psu and flip the switch, cycle the power then plug back in and flip the switch for it to even turn back on.
I have no clue what is happening. Please help.

 

[ralphfaith]

I am trying to figure it out but cannot come up to any point, because your specifications are really good and you've elaborated it nicely. Will get back to it if anything strikes here. Following the thread as well.

 

[Carnaxus]

I can only think of two potential causes: Is your GPU properly seated in the PCIe slot? Is the PSU properly connected to the GPU's ports?

 

[Aggex]

Everything is properly connected Carnaxus. Checked this morning and nothing was lose or anything.

 

[Carnaxus]

Actually, now that I've reread your original post (and not at 3:00 AM), it sounds almost like something on the motherboard is failing. I can't think of any other reason it wouldn't respond to the power or reset buttons if just the software was frozen. I'm assuming you've tried doing a hard shutdown when it freezes? Holding the power button and all that?

 

[Aggex]

Honestly, after doing some research that's what I think it is. Yeah, rest button doesn't work. Power button doesn't work. Have to flip PSU switch and remove power cable then recycle the power. To get it back up.

 

[Carnaxus]

Are you able to do a hard shutdown by holding the power button until it turns off or does it not even respond to that? If it's not even responding to that, then yeah, probably a bad motherboard.

 

[Aggex]

Yeah It's not even responding to the hard shutdown. the button just stops functioning period.

 

[Carnaxus]

Yep, probably a bad motherboard. Quite possibly the most annoying part to go bad in a computer, as it's what everything plugs into meaning you have to unplug all that just to swap it...bleurgh.

 

[Aggex]

Yeah Honestly. If it's a bad mobo. Im just gonna get a new case as well. My case is older. like 5-6 years. So it's time for an upgrade