Gaming PC keeps crashing randomly ?

[Cam Bam]

Hey guys! I have tried everything I can think of. I don't really know if it matters whether or not it is a gaming PC, anyway. It has been working fine for about 5 months and in this past month, my computer crashes randomly. The only thing that has changed since then is I have an extra SSD but the crashes were happening before I got this so it isn't the SSD causing it and that I have reinstalled the OS about 3 times (to different OS's). I have no idea why it keeps crashing but it usually happens within the first 30 minutes of use when I get home from work and doesn't occur again for the rest of the night. I just need help to permanently fix this as it can become quite an issue and not only that, it is frustrating considering how much money I have put into this lol

 

Anyway, my specs are as follows:

Case: NZXT H440

PSU: Corsair 750W RM-750 ATX Full modular

Motherboard: gigabyte z97x gaming 7
CPU: 4790k

RAM: g-skill g1 sniper 2400 mhz 4x4gb

Graphics card: EVGA GTX 980 Ti

2 SSD's: Both 850 Evo's one is 120gb other is 240gb

And an LED strip if that matters?

 

 

Thank you everyone for being so kind to me in the past <3 

[WebPlayz]

Heres Some tips! 

 

1. Check the GPU it could keep dieing.

2. Most likely its the ram so get a ram testing program and test it!

3. If you have a cpu overclock turn it off and try it!

4. Make Sure your Power supply is working correctly and make sure the connecters are in correctly

[StephenPotter]

Simple for that worked for me.  I had problems with a system built on a Gigabyte Z97X-UD3H for almost a year.  I tried everything that most people suggest, BIOS settings, changing components (GPU, memory, hard drive), made sure I wasn't overclocking, etc.  I finally set my Windows Power Plan to High Performance and set "put computer to sleep" to never.  I've been rock solid for at least 60 days now, probably longer actually.