Computer freezes

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Hi,
Since getting new PSU, mainboard, RAM and CPU my system often freezes for about 1 to 15 seconds.
OS: Win 10 Home
mainboard: ROG STRIX B450-F GAMING
CPU: AMD Ryzen 5 2600 Six-Core Processor 3.40 GHz
GPU: Nvidia GeForce GTX 1050Ti
RAM: 2x G.Skill F4-2400C15-8GTZRX
PSU: some "Cooler Master" 550 watts

Temperatures and workload of CPU and GPU seem fine to me.
Chkdsk did not find problems.
No virus. No unnecessary programs.

What could be the cause and how to find out and fix?
 
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Does it happen at any specific time? E.g. does it freeze more when idle, or when playing games?

Anything in event viewer?

When it freezes, can you move the mouse, or press the keyboard? Do fans still run normally?
 
Thanks.
When playing games freezes are way more long.
Will check event viewer and report back.
In game I can't move the mouse when it freezes. On desktop both happened (being able to move mouse and not being able).
Fans still run normally.
 
Are you using a SATA drive, or an m.2 drive? The freezes being longer in-game makes me wonder if something overheating and throttling. It could also be something like a faulty driver, or an overzealous antivirus.
 
SATA drive.
Any way to check for faulty drivers?
No antivirus, only windows defender.

Can not use event viewer. Says: "Computer `MSC` cannot be connected. ..."
 
SATA drive.
Any way to check for faulty drivers?
No antivirus, only windows defender.

Can not use event viewer. Says: "Computer `MSC` cannot be connected. ..."
Oh, SATA drives rarely overheat, though might be worth trying a different cable if you have one handy.

Faulty drivers: not really, there's latencymon, but easiest way is just to install the latest for everything. Anything that's very old, like ancient USB devices (wireless adapters, sound cards, etc), I'd update those drivers first, then the chipset/motherboard, sound and graphics. If you're using wireless or bluetooth mouse or keyboard, I'd consider trying a basic wired one.

Event viewer not working is kind of worrying. Is this a work computer, or remote desktop?
 
I have now updated chipset-drivers and BIOS-version, deactivated some unnecessary programs in start up, tested SMART values of drives, run memtest and increased swap file size.
Now besides the old long freezes i am getting microstuttering in game, that is many very short freezes plus 2 times in an hour maybe i got a black screen and no sound with pc still running forcing me to hard reset. Event viewer is not showing anything related to it as far as i can tell. Any ideas? What to do?
 
Did you get a new cooler with the new CPU? Fresh thermal paste on it and properly seated?

Was the windows install a fresh on one the new machine?
 
Did test the CPU temps a few days ago. When in game it was 74 degrees celsius max. i think. When on desktop or in chrome it's 33-38. It's got a water cooling system installed on it. Got it that way from a friend.
Yes, when i got the new parts. Half a year ago.
 
Weird.. doesn't sound like a hardware 'fault' as your not getting any crashes or reports and the system is recovering, have you got a spare drive ?
 
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