W10 Crashes - no BSOD, cant identify relevant events being logged.

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10 Nov 2020
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System:
CPU: Intel CoreTM i7 6700K
CPU Cooler: Corsair H100i v2 Extreme Liquid Cooler
RAM: 32GB Corsair 3200mhz Vengeance LPX DDR4 (4x8GB)
GPU: ASUS ROG Strix GeForce® GTX 1080 8GB
Motherboard: Gigabyte Z170‐Gaming K3
Operating System: Windows 10 Home (64‐bit)
PSU : 850W Corsair RMx Fully Modular
Hard Drives:
- Samsung 950 Pro 256GB M.2 (system drive)
- Samsung 500GB 850 Evo SSD
- Samsung 500GB 850 Evo SSD


So as of a few days ago I have been getting system lockups at random intervals - it could be anywhere from half an hour to a few hours of running games without any issue whatsoever and then getting a complete system hangup.

By this I mean that the entire system will freeze with whatever frame was being rendered at the time remaining static - there is no sound output whatsoever. The only way to get the system to restart is by holding down the power button. Having done so the computer starts without any sort of error message and looking at event log only gives information that the last system shutdown was not done correctly.

Last night I performed a clean windows installation; I thought this fixed the issue but then after around 2 hours of playing Hell Let Loose, followed by Squad the error returned.

I would be grateful for any tips into diagnosing this.
 
First thing I'd do is grab memtest86 or 86+ and check RAM is stable.

EDIT: Also use something like HW Monitor and make sure temperatures are within acceptable limits.
 
First thing I'd do is grab memtest86 or 86+ and check RAM is stable.

EDIT: Also use something like HW Monitor and make sure temperatures are within acceptable limits.

Just looking for a USB drive and will leave memtest running over night. Have kept an eye on temps and they seem in a good range and stable.
 
check plugs, cables, reseat the ram sticks, undo any overclocks. Have you had any updates installed in windows or with drivers?
Did you drop any overclocks you have?
 
Running Memtest 4 passes of 11 tests on memtest now; curious to see if it throws up any errors by the time I get up.

check plugs, cables, reseat the ram sticks, undo any overclocks. Have you had any updates installed in windows or with drivers?
Did you drop any overclocks you have?

-- I havent overlocked anything but will double check and may reset bios to default just in case. Will also reseat ram and check all cables in the morning.

Re: Updates - I have had auto update (Windows) turned on for a while; so wouldnt know which, if any caused it. GPU driver also updated but have tried two older versions throughout the day and this didnt seem to make a difference.
 
If it passes a couple of complete passes of the RAM it is likely stable.

If you run it long enough you might find an error or two by complete chance.
 
Check your hard drives for errors, sounds like a drive having problems reading or writing too. Does the light (LED) for HD activity on your system stay locked on when this happens ?
 
The problem is, when a pc crashes it could be so many things, it's just a case of going down a check list and discounting everything as you go.
If it's not the cpu/voltage/ram, check gpu voltages, run at stock, then software which is the worst. I hate it when it's software.
Hope you find a solution soon mate
 
Does it only crash when gaming? Can you run Cinebench or a cpu stress test for a few passes?
Going to run it for a couple passes now...
The problem is, when a pc crashes it could be so many things, it's just a case of going down a check list and discounting everything as you go.
If it's not the cpu/voltage/ram, check gpu voltages, run at stock, then software which is the worst. I hate it when it's software.
Hope you find a solution soon mate
Running everything at stock as we speak. Somewhat discounting software issues bearing in mind the clean install from yesterday; hoping it does not veer off in this direction
 
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