Frequent restarting since I installed new RAM

Red0xrxn

Commendable
Jul 10, 2016
4
0
1,510
Hey guys,

Problem: I recently upgraded my RAM from 8 gb (2x 4gb) to 16gb (HyperFury 16GB (8GB 1G x 64-Bit x 2 pcs.) DDR3-1866 CL10 240-Pin DIMM Kit). It is set up right on BIOS, with voltage at 1.5. No XMP.
PC works just fine, but when I play a demanding game such as PUBG, the PC just restarts after about 30-45 min. It doesn't freeze, it just restarts. I am able to boot correctly, but after a few minutes it may or may not restart again.
I never had this problem before the new RAM.

What I tried: I thoroughly monitored my CPU temperature and GPU temperature while gaming and they always stay in their normal range, there is no correlation between a sudden increase of temperature and the restart.
I tried checking my RAM with MEMTEST86, but I am not able to run the test as I can't get past a step staying "Testing multiprocessor support". I don't know what this means and don't know if it's that relevant to pursue this test at this point.

SPECS:
- Mobo: Gigabyte - GA-970A-UD3P ATX AM3+ Motherboard
- CPU: AMD - FX-8320E 3.2GHz 8-Core Processor
- GPU: Radeon R9 290 4GB
- PSU: EVGA - 600B 600W 80+ Bronze Certified ATX Power Supply
- RAM: Kingston HyperX 16 gb (HX318C10FK2/16) 1866MHz DDR3 CL10 DIMM
- WINDOWS 10

Questions:
What's the next step to troubleshoot/fix this issue?
Should I "empirically" increase voltage of my RAM and see how it goes?

Thanks in advance,