Question Black screen with sound followed by manual restart with no dump

[evilldoll]

setup:
i9 9900k
Gigabyte 3080 VISION OC
PSU: corsair hxi 750w
32gb ram 3200mhz
ROG STRIX Z390-F GAMING


For the past few weeks I've been having random black screen freezes, where the sound goes on for a few more second followed by a complete freeze.
Dumps are enabled:

https://imgur.com/a/ZJ5RnFk

View: https://imgur.com/a/ZJ5RnFk



Using NotMyFault (https://docs.microsoft.com/en-us/sysinternals/downloads/notmyfault) dump are working fine.

However when this happens I have the following event in event viewer.

https://imgur.com/hOS3pWj

View: https://imgur.com/hOS3pWj

• System
• Provider

[ Name] volmgr
- EventID 161
[ Qualifiers] 49156
Version 0
Level 2
Task 0
Opcode 0
Keywords 0x80000000000000
- TimeCreated
[ SystemTime] 2020-12-04T14:32:12.4597853Z
EventRecordID 12825
Correlation
- Execution
[ ProcessID] 4
[ ThreadID] 572
Channel System
Computer DESKTOP-FP5PJN6
Security
- EventData
\Device\HarddiskVolume7
000000000100000000000000A10004C081000200010000C000000000000000000000000000000000


It seem to happen at random times.
I reinstalled my graphics driver using DDU via Safe mode.

As a side note, I have the 3080 for around one month now, and this only started happening for the past week-ish.
Hah 6 of these events in the past 7 days, two of them happened more or less back to back.

To troubleshoot, I left a game on the main screen overnight a few time, GPU underload, CPU underload and it went for 10+ hours straight with no problems.

SSD Health status is good in CrystalDiskInfo(97% for windows partition)

Is there anything else I can check to point me in the right direction ?
Could it be the PSU ?

later edit: temperatures are well within limits for both CPU and GPU
later later edit: no OC on either CPU or GPU

 

[evilldoll]

aida64 extreme has been running with all stress tests enabled(including sdd/drivers ) for the past 2 hours(and still going)
GPU power draw at 100% load was constant at ~306w
CPU max power draw was 148 then "regulated" to 95W throughout the test
GPU core temp was around 64-66 degrees
CPU temps were ~65 degrees

 

[evilldoll]

A bit over 3 hours now, on aida64. Manually stopped the test.
Will play the game for a bit then run aida64 again overnight

 

[evilldoll]

another useful thing I might have left out, my pc more or less run 24/7, with a manual restart in the morning and a manual restart about 6PM GMT.
During the day I use it as a workstation with BDO(Black desert online) in the background(either minimized in the tray running at 3fps, or in the background if I watch the market) and overnight my character does "afk" stuff usually minimized ,however in my last few overnight tests I left it in the foreground with no black screen issue( but it did black screen during the day)