Computer hard freezing when playing games

[Elperis]

While i'm play games, my computer will randomly hard freeze, requiring me to shutdown my PC. It could be 30 minutes into a game, or 3 hours into a game. But it seems that when I freeze on a game once, and play it again right after the freeze, the time it will take to freeze again will be shorter. I've already ran two RAM tests which told me my ram was fine. I've updated my computer's graphics card and downloaded all window updates. I've bought a new graphics card and power supply, still freezes. The computer only freezes on games too, not if i'm just using a software or google.

 

SPECS:

 

GPU: EVGA 06G-P4-2067-KR GeForce RTX 2060 SC Ultra Gaming, 6GB GDDR6, Dual HDB Fans

 

CPU: Intel i5-6600k - 3.50GHz - 6MB - LGA1151 (Skylake)

 

CPU COOLING: Deepcool Captain 120

 

PSU: Apevia ATX-SN900W Signature 900W

 

RAM: (4GBx2) DDR4/2800MHz Dual Channel Memory (Corsair Vengeance LPX)

 

MOBO: GIGABYTE G1.Sniper Z170 SLI ATX

 

SSD: 120GB intel 525 

 

HDD: Hitachi Ultrastar 7K3000 HUA723030ALA640 3TB 64MB Cache 7200RPM SATA 6.0Gb/s 3.5in Enterprise Internal Hard Drive

 

Case: Phanteks Eclipse P400 ATX Mid-Tower Gaming Case

 

FANS: 2 120MM Case Fans

[PyroTheWise]

Have you monitored temperatures to make sure there is no overheating going on?

[KnoT]

You have only 8GB of ram what games do you play ?

[Elperis]

Just now, PyroTheWise said:

Have you monitored temperatures to make sure there is no overheating going on?

I have monitored my CPU temp with CPUID HWMonitor, but it really didn't go over the max temperature that the software had set. I have also put a box fan facing into my computer case that had the side of it off, but it would still hard freeze.

[TwilightRavens]

8GB of RAM is on the low side nowadays, it could be Windows is sending parts of the game that it can’t fit to the paging file on your drives, if not that you could try reinstalling Windows.

[Elperis]

Just now, KnoT said:

You have only 8GB of ram what games do you play ?

World of Warcraft, Total War games, and games that aren't even big or very intense such as Internet Cafe Simulator.

[Elperis]

6 minutes ago, TwilightRavens said:

8GB of RAM is on the low side nowadays, it could be Windows is sending parts of the game that it can’t fit to the paging file on your drives, if not that you could try reinstalling Windows.

I don't think the problem is the first thing you said since I would freeze on games that don't require much RAM. I have wiped my PC before. It still froze before and after the wipe while playing games. I'm not sure if wiping a PC will reinstall windows or not so it could be the problem?

[RageTester]

Quote

 when I freeze on a game once, and play it again right after the freeze, the time it will take to freeze again will be shorter

What about GPU temperatures? 

I am not a pro with cases, but maybe your GPU is squeezed to tightly in there...

[Elperis]

5 minutes ago, RageTester said:

What about GPU temperatures? 

Idle temp is about 42C and when playing a game is around 65C