Computer restarts or shuts down for a while | PSU failure?

AntiNulled

Commendable
Sep 13, 2016
4
0
1,510
So, as you can see in the title, I've got some problems and can't find any solutions. Maybe you've got the right answers for me.

I've built this computer exactly one year ago without a GPU. I was playing some games on my CPU on low graphics until recently when I bought a GPU (as you can see in the specs) and started to run into problems.

I need to say that my computer already had some problems before getting the GPU. It was working extremely well until I would shut it down, just to find it the next day not starting properly. It would start all the LEDs on the motherboard, case, fans, and after 5 seconds of trying to boot, it would shut down and start doing that all over again. I would need to stop it from behind (stop the PSU), wait for 5 seconds and then start it again and it would work without any problems.

After I got the GPU (3 weeks ago or so) I started to notice that I wouldn't encounter this problem as often as before. The computer worked great until 4 days ago (after I tried doing some updates on my Windows; this point is important for later). Now when I run games, and sometimes when I browse the web, the computer seems to restart itself. It would restart and boot normally, or sometimes it would just get back in that restart-boot-restart loop that I've mentioned earlier. Also, it doesn't happen that often to just shutdown and not start again. It happened like, 3 times. I had to wait for 5 minutes then it would start on its own (sometimes normally, sometimes in that faulty loop).

As I've told you, after I got the GPU I ran into no problems until I tried to update my Windows. That may have been a problem, since I saw some posts complaining about random startups after updating the OS, and it had something to do with the GPU.

The older problem with the faulty restart-boot-restart loop; I've got no idea why it is happening. I think my problem is a combination between the two problems. It may have to do with the PSU, since I can see no problem in temperature for the other components. My CPU stays as low as 30C° and as high as 45C° even when gaming (since it runs on water cooling).

I'll try to look more into the GPU problem and solve it just to see if the problem persists. But the faulty loop problem is still there even if I solve the GPU random restarts. The computer would still have some problems starting. Also, I think it may have something to do with the PSU since it's got 850 Watt and maybe it stores too much power that it doesn't use. I gotta admit that after buying the GPU, I didn't run in that problem as often as before getting it.

Sorry for the long post, but it is a pretty complex problem and it needed some explaining. If you can suggest anything, or have any idea why this is happening, I would really appreciate your help in this matter.

Thank you, and sorry again for the long text!

Specs:
Intel Core i7 6700k
16GB Corsair Vengeance LPX schwarz DDR4-2666 DIMM CL16 Quad Kit (4 sticks)
Gigabyte GTX 1070 8gb (bought recently)
Gigabyte GA-Z170X-Gaming 7 ATX LGA1151 Motherboard
850 Watt Corsair RMi Series Modular 80+ Gold
3000GB Seagate Desktop HDD ST3000DM001
 

AntiNulled

Commendable
Sep 13, 2016
4
0
1,510