Hi, I built a new system 2 weeks ago and everything worked fine. No OC, default settings.
One day my PC restarted suddenly.
I was able to load without any problem, in 5 minutes it restarted again.
I was able to boot Windows and then it restarted again.
After a while PC started to restart when loading OS (1-2 seconds after POST).
System:
Ryzen 5 3600
Asrock X570 Phantom Gaming 4
2x8 DDR 4 Kingston Fury 3200
Asrock Challenger 5600 XT
PSU Cooler Master MasterWatt 550 (normal, not Lite version)
Noctua cooler
Win 10 x64 (but it's not software issue).
I could not load from Live USB (win, various linux distro), same reboot after 1-2 seconds. So it looks like hardware issue.
System always can pass POST and load to BIOS.
Bios version was 2.20, updated to the latest 2.30 - no effect.
Temperature was great, no problem.
Disassembled and assembled PC (reseat, etc.). Visual inspection of components - no problems. Check temperature with my hand. South part is hotter but it has a fan on MB anyway.
What worked for a day:
I disabled "burst clock" by setting CPU frequency and Voltage to manual and used defaults - 3600 and 1.1.
I was able to boot to OS and ran some tests. CPU frequency < 3600, but i still saw some random restarts while loading a page in a browser.
UserBenchmark tests - restart
OCCT:
Memory passed.
GPU passed.
CPU, PSU (technically it's just CPU+GPU) failed. Any CPU test leads to restart.
After a day I cannot boot even with no burst. Just 1-2 seconds and restart loop.
I still can return a faulty item, but because of covid19 it's more complicated than before.
I would like to know which item is faulty (ofc just most probable candidate).
I suspect PSU (CPU doesn't get enough) but at the same time GPU still works.
Then MOBO if it cannot provide enough juice to CPU.
Then CPU.
Any help or thought is appreciated.
After several minutes Min values dropped significantly.
