Question Faulty motherboard?

[carthaginium]

Hi all, sry if im posting in wrong place.
Week ago my pc didnt wanna boot, so i reinstalled windows 10 and it fixed problem. Couple of days later same thing happened, this time i figured my old ssd gave up and i bougth new one, as i also needed bigger one. Pc worked fine for 5 days and then it froze, i restarted it and it didnt wanna boot again. After few hours i tired to boot it and it worked fine for 2 days. Now its broken again. It boots up, freezes after couple of minutes and than it wont boot for 15 20 min. Than its all over again. Sometimes it justs freezes and shuts down on its own, sometimes its blue screen of death saying winlog is missing or smtng like that, sometimes it keeps resetting itself trying to boot up but it doesnt even get to Bios, its just black screen. So basicly it eithers boots up and works perfectly for couple of min or its stuck even before bios reseting itself. When it works i checked pc temperatures and its all fine. Does this sound like motherboard issues? Should i replace it?
Specs
Rtx3060
I5 12400f
Asus B660M
16gb
ram
Everything is 3years old btw.

 

[Ralston18]

Make and model PSU? Wattage?

Look in Reliability History/Monitor for any error codes, warnings, or even informational events being logged just before or at the time of the freezes, etc..

 

[carthaginium]

Make and model PSU? Wattage?

Look in Reliability History/Monitor for any error codes, warnings, or even informational events being logged just before or at the time of the freezes, etc..

Psu is SilverStone essential 550w 80plus bronze, it came with pc, i got prebuilt pc.
Event viewer shows ceitical error before freeze, kernel power id41

 

[Ralston18]

PSU a likely suspect. 3 years old and may be nearing or at its' designed in EOL (End of Life).

Starting to falter and fail.

What power options (if any) are you using?

 

[carthaginium]

PSU a likely suspect. 3 years old and may be nearing or at its' designed in EOL (End of Life).

Starting to falter and fail.

What power options (if any) are you using?

Power options? If you mean power saving etc its all set to never. For exemple right now pc booted normaly and im perfectly playing game, at high gpu and cpu load without any issues...
So you would recommend i replace psu?

 

[Ralston18]

Replace PSU - not without some additional troubleshooting.

Intermittent problems are difficult to troubleshoot.

Things you can do:

Power down, unplug, open the case.

Clean out dust and debris.

Verify by sight and feel that all connectors, cards, RAM, jumpers, and case connections are fully and firmly in place.

Use a bright flashlight to look for signs of damage: bare conductor showing, melted insulation, pinched or kinked wires, corrossion, cracks, loose or missing screws, browned or blackened areas, swollen components, dead bugs.

Replace the CMOS battery as directed in the motherboard's User Guide/Manual. (Just as a matter of elimination.)

If you have a multimeter and know how to use it (or know someone who does) you can test the PSU to some extent.

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158

Not a full test because the PSU is not under load. However, any voltages out of spec make the PSU quite suspect.

Keep watching for additional errors via Reliability History/Monitor and Event Viewer.