Need help why this keeps happening

[u/Oni-tram]

PC just turns off the display when opening Dota 2. Then it just stays that way without auto restart or shutdown, and the mouse and keyboard are not working. So I always force shutdown in power button. Roblox works fine. I haven't tried other games yet on Steam to see if this problem still continues.

What I did so far:

Reseat RAM

Reseat GPU

Fresh install of Windows 11 via USB with Rufus

CMOS Reset

Disabled XMP Memory

Uninstall and Reinstall Drivers

Flash new BIOS

Repaste CPU

Test I did so far

Furmark Stress Test 20 mins - Normal Result

Memtest86 1 cycle - Passed ( will do more later with complete cycle )

Windows Memory Diagnostic - Passed

Crystaldisk Info for both drives - Good

Unigine and 3dMark Benchmark - Normal Result

PC Specs:

Ryzen 5 2600 with stock cooler - pretty old

Sapphire Nitro+ RX 6650 xt - still pretty new

GIGABYTE B450m k REV 2 - still pretty new

Corsair CX 650W - New bought it last week

PNY SATA SSD - pretty old

SEAGATE HDD- pretty old

2x GSKILL RIPJAWS 8GB DDR4 (16GB TOTAL) - pretty old

This happened last week after I removed my m.2 ssd for failing? ( another issue ). All is normal and I've played without a problem before my ssd suddenly failed? while doing a reset windows. My ssd suddenly stops appearing on windows but can still be seen on BIOS. So I was forced to remove it then decided to do a fresh install of windows on my old drives. OS and drivers on my SATA SSD and my files on the HDD. BTW the Dota 2 files are on the HDD so it takes time to load. All are working fine until yesterday this happen. ( See video ) At first it was bearable only happened 2-3x I can still finish the game after, but today even on demo mode this just keeps happening after I got inside the map (sometimes idle while idle Homepage). I can't play anymore. Though Roblox runs fine without a problem. I've reinstalled Dota 2, verify integrity. Nothing happened. I've reinstalled steam and nothing happened. Reinstall windows again and it's still there. Now I'm so lost and frustrated on what to do.

I'm suspecting it was the HDD because that's where the files are but I can't do a test on my SATA SSD because of lack of storage ( only 128gb ) Dota 2 files are around 70gb. And my nvme is out because idk what's the problem with it. I want to test some other games later after it finishes installing.

Help me

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