Looking for help with new crashes

lymphnodes

Honorable
Sep 21, 2012
3
0
10,520
Hello all, so I'm looking for any suggestions with tracking down the source of my problem with a newly built (3 weeks ago) computer that was running fine until yesterday.

The basic story is that in the past 24 hours I've been having increasingly frequent crashes, to desktop from a game or a complete freeze requiring a hard reboot either from a game or more recently from Windows itself. No BSOD so far. At first I thought perhaps it was something with my GPU since it was happening in games but now it's happening just in Widows at random. Once tonight I even walked away from the computer just after logging into Windows, was talking to my wife for about 5 minutes, and when I came back it was a non-responsive Windows desktop requiring a hard reboot.

My components are:
CPU: i7 7600k
GPU: Gigabyte GTX 1080
Motherboard: ASUS Z170-A
Memory: Corsair Vengence LPX 16GB (2x8) DDR4 3000MHz
PSU: EVGA SuperNova 850 80+ Gold
Disc: Primary is Samsung 950 PRO (where Windows 10 is), secondary is Samsung 850 EVO


All these parts are brand new out of the box. For the first week I left everything at factory default and it worked fine. After that I tried some overclocking (first time I ever have, so I tried to be conservative) and things were running fine with the CPU at 4.5GHz with 1.300 voltage and the GPU at about +110 clock and +350 memory, didn't touch voltage. Stress tests were fine (if a little short) as were lengthy gaming sessions, and as it was my first time overclocking I was rather OCD about keeping an eye on heat and the GPU pretty much stuck at 60C while the CPU could get up to 60-70C in more CPU intensive games, never above 70C for more than a few rare seconds.

All was fine until the past 24 hours, when I've been getting the crashes above that have started within 5-10 minutes of a game. Windows desktop crashes are more random, can be just a few minutes or quite some time. I've restored CPU and GPU to factory defaults but that hasn't seemed to help. Heaven benchmark seems to be okay at least for about 15 minutes but Prime95 is definitely causing crashes even at factory defaults.

Any ideas about how to figure out what's going on? Could this be a bad PSU? I have my old one still around and could swap that out later tonight and see if there's a difference, but I thought I'd see if anyone had a different idea about how to tackle this.

I'm pretty dismayed about all this right now, so I'd greatly appreciate any suggestions. Thanks so much for any help!
 
Solution
Nevermind, it was one of the memory sticks. Don't know why this didn't occur to me sooner. Especially wish it had occurred to me before I swapped out the PSU. Oh well live and learn.
Nevermind, it was one of the memory sticks. Don't know why this didn't occur to me sooner. Especially wish it had occurred to me before I swapped out the PSU. Oh well live and learn.
 
Solution