System freeze when not under load 20 seconds after wake from sleep
I have a weird issue that pops up every few days. Every once in a while after I wake the computer up from sleep, it freezes. Not immediately, but perhaps 20 seconds after I've starting interacting with it. Here's a typical sequence.
Computer goes to sleep (not hibernate).
Some long time later, I come by the computer and wiggle the mouse to wake it up.
Screen comes on, I enter my password and login.
I start doing something like load a web page or two. Things seem perfectly fine.
Then, about 20 seconds after I started interacting with it, everything freezes.
Mouse and keyboard are unresponsive. Nothing changes on the screen. Ctrl-Alt-Del doesn't do anything.
I have no way of knowing if the CPU is actually frozen or if it's just my USB input devices that are frozen.
I end up having to hard power down (hold power switch down) in order to restart.
You can see the system in my sig below. It's been pretty thoroughly tested in Prime95, RAMTest and MemTest86 so I'm unsure how it could be directly related to the overclock plus there's really nothing going on when it freezes other than my typing or clicking in the browser plus whatever system services might be doing. It's not like there is any stress on the system at the time. I bumped the CPU offset voltage up 0.1V and it did not make a difference.
Any ideas where to look? What to try? How to test for a problem?
(-1 AVX offset) on ASRock Z390 Taichi
with Noctua NH-D15 air cooler
CPU offset voltage of -25mv, runs VRVout 1.240-1.313V on full AVX load, 1.225-1.275V on non-AVX load
2x8GB [email protected] at 1.45V
, G.Skill F4-3733C17Q-32GTZKK (XMP rated [email protected]
EVGA GTX 1060 6GB OC with Corsair RMx 750W power supply
Samsung 970 EVO 500GB NVMe boot SSD and four other drives all in a Fractal Design R6 Case