Question System colapse

[Alejandro_]

Hello, Im using a translator because the english is not my native language

I had my PC for about 3 years and over time I've upgraded some parts. It started with an A320 motherboard, now its a B450. I used to have 16GB of Kingston 3200MHz RAM, now is Corsair 16GB 3600MHz. Same with the PSU always trying to go for slightly better. At this point idk what is caussing the issue.

I use my PC for gaming. I play for a few hours then maybe take a break to watch a video or do something else. But when I go back to playing or sometimes even while Im playing, the PC completely freezes screen goes black and it stops responding. RGB lights on the RAM, fans, keyboard, and mouse stay on, but if I unplug and replug the keyboard or mouse, they dont light up again, like theres no power going to the USB ports and obviously they dont work. To fix it is forcing shutdown. Windows doesnt show any errors in the event viewer so I have no idea what to do for fix that.

Also I wanna mention that once or twice when I turned on the PC it powered up but didnt show the BIOS logo just a black screen like with the other issue. I had to power it off and on again and then it would show the BIOS logo and boot normally.

Specs
Windows 11 Pro
MOBO Gigabyte b450 ds3h v2 BIOS F66
CPU Ryzen 5 5600g
GPU GTX 1650 ddr6
RAM Corsair 2x8GB ddr4 3600mhz
2X A400 Kingston SSD 480GB
Psu Corsair CX650m
AVR Koblenz RS-1410, 1410 VA / 700 Watts. I dont think thats the issue cause I know someone running a 4070ti and a 5600x with this same avr

¿What I tried?

Windows format multiple times but same thing.
I checked connections.
Did a general cleaning of PC.
Right now Im testing it without undervolt. I do undervolt for keep CPU clocks more stable not for temps.

 

[Lutfij]

It started with an A320 motherboard, now its a B450. I used to have 16GB of Kingston 3200MHz RAM, now is Corsair 16GB 3600MHz.
Did you reinstall the OS when you migrated platforms?

MOBO Gigabyte b450 ds3h v2 BIOS F66
https://www.gigabyte.com/Motherboard/B450M-DS3H-V2-rev-1x/support#dl
The latest is version F67g. make sure you're on the latest chipset drivers, then flash the BIOS to the latest version and then clear the CMOS.

Psu Corsair CX650m
Is this the green labelled unit or the grey labelled unit?

Windows format multiple times but same thing.
Did you recreate your bootable USB installer to rule out any corruption? Did you install the OS in offline mode?

I do undervolt for keep CPU clocks more stable not for temps.
How are you cooling the processor? Make and model of your case? Ambient room air temps?

Moved thread from CPUs section to Systems section.

 

[Misgar]

I used to have 16GB of Kingston 3200MHz RAM, now is Corsair 16GB 3600MHz.

The maximum official speed for RAM on the 5600G is DDR4-3200. Your CPU will probably support faster RAM, but there's no guarantee if will be I00% stable at 3600MT/s.

If your BIOS is set to XMP/EXPO/DOCP 3600, try reducing the speed to 3400, or even back to 3200.

Run a full pass of MemTest86 at each XMP speed (takes several hours). If you get even one error, your RAM is not stable.
https://www.memtest86.com/

I have an old 2600X and it will not run faster than its official DDR4-2933 speed, without manual tweaks in the BIOS.

With DDR4-3000 RAM, I relaxed the CL(CAS) timings from CL=16 to CL=18 and it now runs at 3000MT/s.