Dual monitor system cash / reboot when starting a game

[InsufficientSleep]

Hi, My system crashes and reboots whenever I try starting a game.  I have tried every game I have and the only game that sometimes starts up is DOOM and Doom Eternal. FFXIV is really bad and crashes as soon as I hit play. 

I have used the G9 monitor without problems since May running it at max settings , but I wanted to add a second monitor.

As soon as I added the second monitor it started to crash.  When I disconnect everything it works fine again. I can use both screens just fine as long as I don't start a game.

 

I have tried a few different monitors, reinstalled the GPU driver , switched to different HDMI / DP-cables, tried new PSU cables.

Checked the power draw up to the crash moment but it don't even jump over idle on the PSU before it crashes ( iCue 144W + - some on idle) .

Also tried with G-sync on and off, different resolutions and Hz. I tried running my PSU in Single rail config too with no luck.

Is my 2080ti just too weak or is something else going on ? 

I deleted the event log and did a few more tries, these screenshots are the only error I get.

 

Monitors: 

Samsung G9 odyssey LC49G95T  5120 x 1440  60/120/240Hz 

Acer xb240H  1920x1080 60Hz  (dont even matter what monitor I use as my 2nd ) 

System Info( mostly from from Aida64 )

Operating System  Microsoft Windows 10 Home 10.0.19041.630 (Win10 20H1 [2004] May 2020 Update)

Computer Type  ACPI x64-based PC

DirectX  DirectX 12.0

Motherboard/ CPU:

CPU Type  12-Core AMD Ryzen 9 3900X, 4500 MHz (45 x 100)

Motherboard Name  Asus ROG Crosshair VI Extreme (3 PCI-E x1, 3 PCI-E x16, 2 M.2, 4 DDR4 DIMM, Audio, Video, Gigabit LAN, WiFi)

Motherboard Chipset  AMD X370, AMD K17.7 FCH, AMD K17.7 IMC

System Memory  32694 MB

DIMM3: G Skill F4-3200C16-16GTRS  16 GB DDR4-3200 DDR4 SDRAM (16-18-18-38 @ 1600 MHz)

DIMM4: G Skill F4-3200C16-16GTRS  16 GB DDR4-3200 DDR4 SDRAM (16-18-18-38 @ 1600 MHz)

BIOS Type  AMI (12/16/2019)  BIOS Version  7704

GPU / Display:

ZOTAC GeForce RTX 2080 Ti ArcticStorm 

GeForce Game ready driver 457.30

Video Adapter  GeForce RTX 2080 Ti (11 GB)

Video Adapter  GeForce RTX 2080 Ti (11 GB)

Video Adapter  GeForce RTX 2080 Ti (11 GB)

Video Adapter  GeForce RTX 2080 Ti (11 GB)

3D Accelerator  nVIDIA GeForce RTX 2080 Ti

Monitor  Acer XB240H [24" TN LCD] (T1YEE0014200)

Monitor  Generic PnP Monitor [NoDB] (H4ZN600222)

PSU:

Corsair HX850i

 

Pic's,  this was after 1 crash but it's the same stuff that shows up over and over.

 

 

 

Grateful for any help : ) 

 

 

[InsufficientSleep]

Fixed it. Not sure what fixed it though. 

All I did was to re-seat the GPU for the 2nd time, used /scannow without seeing anything bad and 2 x DDU. 

I can now run games and my monitors works at max resolution and Hz