Question Most If not all triple a games crash 5-10 minutes in

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Feb 23, 2020
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Hi, so I recently built a pc from an old dell Optiplex 3020 I got off of eBay and heavily upgraded, this of course started to make my computer break and not be able to run any games without a crash at some time.

My Specs:
Intel Core i7-4770k
Stock Optiplex Motherboard
EVGA GTX 970 SC
8GB DDR3 1600MHz
128GB Integral SSD
500GB WD HDD (this is where all my games are)
CX500 PSU


For Example GTA 5
When I run it in safe mode I can get past the heist and I can start the Franklin Mission with Lamar, I can drive to around the Movie Theatre-Where they mention the Union Depo
Any Help Would Be Appreciated, not to mention I can run before it crashes at normal 120 fps