Random Intermittent Crashes, GPU Related??

Feb 2, 2019
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Dear Tom,


Been having problems with my 1 year old, custom PC for a while now. Started off with games randomly freezing and having to reset the computer which may then just show a black screen for successive boots. only to work again at a future random occasion.


Since then computer has stopped freezing and now crashes briefly where i only lose video and can still here sound mainly while playing dota 2. when the screen comes back I get a message saying unexpected system failure wattman settings have been restored to default. I recently had a BSOD while playing dota 2 claiming an error in a non paged area. Other random crashes have occured playing hearthstone, opening HW.Info - quite regularly.

Most recent issue 90% CPU usage playing hearthstone CPU temps up to 73.8C and extremely laggy

(Other minor possibly related issue Windows keeps failing to install optional updates (language stuff))



Things I have tried:
Ran memtest for 48 hours no errors found
Re seating the graphics card and riser - Seems to work (maybe) temporarily
Tried Different Graphics card - worked but not stress tested
Ran Furmark 1 hour no errors max temp 75C
Ran Timespy no errors or artifacting
Updated BIOS latest version 5.3
Updated AMD Drivers 19.1.1
Command Line: SFC / Scannow, DISM.exe /Online /Cleanup-image /Restorehealth, CHKDSK Nothing Found




System Specs:
Mother board: Asrock: Fatal1ty AB350 Gaming-ITX/ac
CPU: Ryzen 5 1600
GPU: AMD  RX Vega 56
RAM: 2x8Gb Corsair Vengence LPX 3200 (Running at 1064mhz 15,15,15,36)
HDD: Samsung 960 evo M.2 250Gb
Case: Fractal Design Node 202


On windows reliability center I get hardware error reports:


Description
A problem with your hardware caused Windows to stop working correctly.


Problem signature
Problem Event Name: LiveKernelEvent
Code: 141
Parameter 1: ffffb50019099010
Parameter 2: fffff80c317206fc
Parameter 3: 0
Parameter 4: 2208
OS version: 10_0_16299
Service Pack: 0_0
Product: 768_1
OS Version: 10.0.16299.2.0.0.768.101
Locale ID: 2057


Extra information about the problem
Bucket ID: LKD_0x141_Tdr:6_IMAGE_atikmpag.sys
Server information: c1fb0c77-5465-4325-a72a-94557a27629e


What I think the problem is: faulty graphics card probably vRAM


Video card was occasionally undervolted and memory overclocked +/-850mhz for occasional mining practices


Bit lost should probably do a fresh install of windows. but not having an external hdd is preventing me. Was thinking might replace riser blocks from node 202. Computer is transported around in cars and backpacks relatively frequently.


don't want to buy new GPU without knowing it's the problem.


Kind of stuck everything down I can think of not sure if it's all related just had me scratching my head over what the problem is.

Thanks!