X670E Taichi randomly resets

I've replaced the PSU with a new one and have not seen any of the described issues since. Seems like an extremely weird behaviour but it's fixed.

I don't know anymore was having constant restarts now nothing at. Its been a week now restarts or nothing

Dieter_Wilke wrote: Failed contacts?!

Possible. I hope that, if there is a damaged cable, it's at least inside the sleeved extensions since the 24 pin on the dark power pro can not be removed. They only added that in the latest version of that series.

As for the motherboard i have set everything back to EXPO + PBO + CO.

Update:

I found that it doesn't seem to like Trepang2 in particular. Starting the game reboots the system reliably. Have tried over 20 times in a row now. It's a steam title, and steam runs off my secondary drive.

Reseated CPU. No change. Block seemed to have made very good contact.
Removed 1 RAM stick. No change. Put removed RAM stick into A1 to test if it's memory related. No change.
Cleared CMOS. No change.
Tried limiting the CPU power. No change.
Flashed the latest Beta Bios. No change.
Installed the latest AMD chipset drivers. No change.
Disabled C-states. No change.
Fixed the infinity clock speed. No change.
Reduced the GPU clock speed by 100MHz, believing it to be a GPU crash. No change.

Same thing every time. I start the game from the steam library, it loads for a second, screen goes black since it's a fullscreen application and I see the mouse cursor put into the upper left corner for a fraction of a second before it reboots or gets stuck at 00.

I went back to a previous BIOS version and chipset drivers. No change.
I DDU'd the Nvidia drivers and reinstalled. No change either.

Mind you that this game has worked in the past and even when I started seeing instabilities it was nowhere this bad.

I went to pull the PSU and checked all connections. I moved one PCIe power cable to one that is on a different rail. Since I have the OC-Key in the PSU it should run in single rail mode either way so I did not expect any difference. I also untangled my 24 pin extension to check for any issues with the connection. The connection was fine.

Now the system works. Game starts and I can no longer reliably reproduce the rebooting when starting it. Granted, I have no idea if it's 100% stable but it has clearly improved. I have no idea what did it. I merely moved some cables around without unplugging them, powered the system back up and it seems fine. Very strange. Not sure if I should RMA this PSU.

Update: my suspicion about idling cpu has been correct. The past couple days I been running cinebench as soon as windows start I run it for 2 minutes get the cpu temp to 95 and and stop the Benchmark. It has not froze or restart in 2 days. Some of us are having the same problem so try this method. Normally when I turn on the pc on a cold start it would just freeze in a few minutes and restart no matter what settings I changed now after I warmed it up I left it idle for 2 and a half hours and nothing happens. It works well. Still it should ne this way for what I paid. Damn thing cost as much as a high end tablet.