Question On Certain Games I Get a black screen bit i can still Hear the audio and keyboard doesn't respond

Dec 3, 2021
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I recently builded my First PC here's the specs:
CPU:Ryzen 7 5700g
MOBO:MSI b550 gaming plus
MEMORY:Sabrent Rocket M2 SSD
PSU:Evga GQ 750 80+ Gold
RAM: Corsair vengeance pro 3600mhz DDR4
COOLER: Artic Esports Duo 34
CASE: Fractal Design Meshify Compact 2
GPU: The Vega 8 iGPU of the ryzen

Now the problem:
On Certain Games After 10/15 min into the game the PC black screens and keyboard commands cut out but the PC Is still running because i can Hear my buddies on discord
But this happens Only with specific games for example GTA5 or AC can run for hours and hours and nothing happens but of i open Scarface the world Is yours the crash happens 100% in the arc of 10/15 min at First i though i got a defective CPU or iGPU but After running cinebench for the cpu and funmark's stresser for GPU no crash or errors where detected i cheked temps and they were good CPU at full load 100% Was at max 54° didn't go over and iGpu at 99% load for 15 Min didn't Get over 24° so it's not hardware problem tried to unistall Drivers With DDU and reinstall every driver Is the most recent One same for chipset and ecc ecc. PSU Is ok cheked voltage too
RAM si Ok checked that too already tried to change them but no differences happend
At this point i think Is a software problem i did try to do a sys check with cmd but nothing no corrupted files or problems were detected so ti recap:
CPU & GPU : No problems passed stress test
PSU : no problems detected passed stress test
Drivers: uninstalled and reinstalled last version
W10 Cmd Check: everything ok
But still some games crash After a few minutes other After hours others do not Only thing sometimes the AMD Radeon Driver pops out to tell me that there Was a timeout in the driver but at this point i have no clue

PS:rhe BIOS Is the Only thing not updated but on the box of the B550 says R5000 ready so It should be already compatibile
 
I would update your bios or look at the fixes/changes the versions make and see if anything links.

That game Scarface is ancient.. What other games are you struggling to play?
Another game that suffers those simptoms Is Garrys mod or Battlefield 4 (this One crashes After 20/30 Min) checked the Windows error log and It says that Radeon Graphics:CPU metrics Server has stopped working right before the blackscreen
 
This step: " Go into Wattman and choose the custom profile. Over at the Memory section click on "STATE 1" and select "Set as minimum state". This prevents the HBM from downclocking itself to 167 MHz which appears to be the cause of the instability " saved my PC from my rage. - Found this regarding your CPU, black screens etc. Might be worth a shot?
 
This step: " Go into Wattman and choose the custom profile. Over at the Memory section click on "STATE 1" and select "Set as minimum state". This prevents the HBM from downclocking itself to 167 MHz which appears to be the cause of the instability " saved my PC from my rage. - Found this regarding your CPU, black screens etc. Might be worth a shot?
In the end we found the problem and i am very stupid cause on the box of the B550 Gaming plus It says "Ryzen 5000 ready" but that's Only true for the R5 5600x and 7 5700x but not for the 5700g cause It was released on April and the BIOS Is from january so the MB did see the cpu did know It was a ryzen but didn't know how the F!#€+€ manager It causing big crashing in the end with a Simple BIOS update with the recent version all types of crashes ceased to happen and the system Is stable at 100% even with the 3600 hz on the RAM