Please Help Me Solve my PC's Crashing issues.

I am running a Windows 10 Home PC (64bit) and it was running great up until the last few weeks. Hardware make up is i7-7700 16gb ram and a MSI GTX1080 all on an MSI Z270 PC Mate mobo. It is liquid cooled and my boot drive (c:) is an SSD.
While playing demanding games such as Playerunknown's Battlegrounds, Rust and Far Cry5, I have experienced a couple issues. First being that for no reason given, the games will suddenly crash to desktop. It doesnt happen right away but usually after 30+ minutes of playing. The other issue I experience is after a while of play my framerate (FPS) will suddenly drop from it's typical 100-150 FPS range to 40's and even 30's. If I restart the game, this goes away usually.
My PC is an iBuyPowerPC that I got in August of 2017.
When these issues began I originally thought it was perhaps teh streaming software I was using - Xsplit.. I then switched from that to Streamlabs OBS but the issue continued. Someone mentioned using the normal OBS software so I did that and the issues still persisted.

I then ran memtest. I just ran the basic test and it passed.
I checked my cpu and gpu temps and they seemed within a good range according to MSI and Intel. the highest i saw my CPU was about 83C and my GPU highest was around 72C.  This is of course while playing.  
So I figured maybe software related.
2 days ago I wiped my C drive clean, formatted it and reinstalled Windows 10 Home. I then installed my drivers, adobe CC, Office and my games. The issue came back. So I formatted again and this time I only installed my video drive, my mouse drive, my cam, OBS and playerunknow's battlegrounds. The issue came back. This morning I just crashed to a blue screen.
I am at a loss of what to do.
How can i check for thermal  throttling?
is there any software I can run to really stress my system and log all temps? Would doing this help me find teh cause?
Any help is greatly appreciated.
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JaredTCHAsked:
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Martin MillerCTOCommented:
Video games leverage graphics controller/cpu, and these heat up. Do you have diagnostics for the graphic controller ?
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Jonny BTech (CEO)Commented:
What does the actual blue screen say?
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Robert OrnelasVP Operations at Cook's ComputerCommented:
sounds to me kike a possible failing powersupply
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JaredTCHAuthor Commented:
I dont know if i have a diagnostic for the GPU... where would i get one?

The blue went so fast that I didnt get to reead it all. I was able to scan the QR code tho.. and that led to a generic page from MS.

I just ran one of the games (far Cry 5) with all the settings on ultra.. i didnt crash but i did observe my temps for CPU getting over 90C a lot.
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JaredTCHAuthor Commented:
how can I determine if the power supply is failing?
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Robert OrnelasVP Operations at Cook's ComputerCommented:
only way is to install a known good working one if you have a spare that has the required wattage.
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Adam LeinssServer SpecialistCommented:
Please run BlueScreenView and give us the error/screenshot:

https://www.nirsoft.net/utils/blue_screen_view.html
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Unais AshrafIT TechnicianCommented:
Download a program called whocrashed this will analyze why your computer has crashed and will give you a possible solution.
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Jonny BTech (CEO)Commented:
Was any hardware recently added?? Do you have a way to cool down the system more??  90C is getting up there.  I  have seen CPUS and GPUS get too hot and just crash lock up the machines before.  For example if you recently upgraded your video card and its drawing too much power from your power supply it can crash the system.
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Martin MillerCTOCommented:
With regards to temperature, you can have a margin of error +/- 10% or more on measurement. Then add your GPU could be stressed with age and thus not able to handle getting hot.  90C is getting up there, and I found the following with regards to temperature and NVidia GPU.  This statement is applicable to other manufacturer's GPU's too.

VIDIA GPU maximum operating temperature and overheating
NVIDIA GPUs are designed to operate reliably up to their maximum specified operating temperature. This maximum temperature varies by GPU, but is generally in the 105C range (refer to the nvidia.com product page for individual GPU specifications). If a GPU hits the maximum temperature, the driver will throttle down performance to attempt to bring temperature back underneath the maximum specification. If the GPU temperature continues to increase despite the performance throttling, the GPU will shutdown the system to prevent damage to the graphics card. Performance utilities such as EVGA Precision or GPU-Z can be used to monitor temperature of NVIDIA GPUs. If a GPU is hitting the maximum temperature, improved system cooling via an added system fan in the PC can help to reduce temperatures.
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nobusCommented:
post the dmp file plse -find it in c:\windows\minidumps
if no file found - set your system to make dmps : http://blog.nirsoft.net/2010/07/27/how-to-configure-windows-to-create-minidump-files-on-bsod/
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JaredTCHAuthor Commented:
It ended up being heat related. I had a minute amount of dust visible as a ring showing where the fan sat on the "Radiator" for the liquid cooling. I took the whole cooler apart and dusted and used a bottle of air through the "radiator"    It amazed me how much my temperatures dropped. I was once running in the high 70s at idle and now I am sitting in the 40s. Seemed to have made all the difference in the world. Nothing has crashed or bogged down since.

Thank you for the help. I am going to save this thread because even though some of the posts didnt contribute to the resolution, the info shared was great.
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Martin MillerCTOCommented:
Can we close this question?
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