Question Spikes in disk usage and hickups during gameplay

[DarkKnight53]

I used to have a system with m2 ssd and completely different parts, I sold that system and got a new one but I'm seeing the exact problem I used to have before.
This especially gets intense when there's a background installation like Steam installing a game while I'm playing or when pc is fresh booted or just randomly.
Both audio and video get's interrupted for a moment.
Also happens almost every 30 secs if I enable Nvidia Instant Replay

The picture is from when I tried to play a game.

My old pc:
Ryzen 1600
Gigabyte ab350m gaming 3
Kingston 2x8
GTX 970
Crucial 500gb m2 ssd
Windows 10

New pc:
Ryzen 5600
Gigabyte B550m ds3h
Kingston 2x8 3600 mhz
GTX 3080
Old ssd + new Kingston m2 ssd
Windows 10

I tried installing the system on different SSDs but it's same in both.
I tried removing the old one and it still happens with new kingston SSD.
I tried to record what's using disk resource but I couldn't do it per app.
I tried sorting task manager screen by disk usage but it doesn't show a particular program with high % disk usage.

I'm suspecting it's either OS or Motherboard's CPU settings that causes this but I don't know what to change or where to look.

 

[rgd1101]

does it happened in safe mode?

 

[DarkKnight53]

does it happened in safe mode?

I didn't try on safe mode but it'd hard to test with limited apps

 

[Ralston18]

Does the disk behavior stop or change if Nvidia Instant Replay is disabled?

Have you tried reinstalling and reconfiguring Nvidia Instant Replay?

= = = =

Regarding:

"I tried sorting task manager screen by disk usage but it doesn't show a particular program with high % disk usage."

Also use Resource Monitor and Performance Monitor to observe system performance.

Process Explorer (Microsoft, free) may also prove useful.

https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer

Use all of the tools but only one tool at a time.

The key is to discover what the system is doing, trying to do, or has stopped doing when the disk usage peaks and drops.