New Build Total Crash 1 Month After Working Fine?

[SquirrelMadness]

Built in December and has been solid until last few days where it has a total freeze up...

No blue screen,
Signal to monitor is cut,
Corsair RAM and keyboard light sequences freeze,
PC fans ramp up to max level,
Code 00 on ASUS motherboard,
Only way to get out of it is to turn off at the plug.

I haven't installed any software or updates... apart from maybe the GeForce driver a few days ago.

Crash has happened 3 times so far.

Anyone know how to troubleshoot or what this sounds like?

Ryzen 7950x, Asus Hero MB, Dominator 64gb, 10yr old PSU.

Thanks.

 

[SquirrelMadness]

Any common timing, e.g. idle, games?

Nope. 1st crash happened during the ending credits of The Last of Us

Second crash during web browsing (loads of tabs open across 3 browsers)

Third crash, just now, happened after opening Ableton Live whilst Chrome and Opera were running

Only app open during all 3 crashes was Chrome with about 10 tabs loaded - doubt this is the culprit though as it's always open.