Suddenly getting crazy voltage, temps, and power draw on an 10900k that’s been working for years at same settings with no issues

EDIT: Here's a short video of the issue shown in HWinfo64.

Never seen anything like this before, and have made NO recent changes to my overclocking settings when this problem arose. I also turned off multicore enhancement and enforced all limits, still getting the same behavior.

A few weeks ago, I noticed this a couple of times and then it went away after multiple restarts. It's now back, and concerning.

After starting the PC, when Windows loads I immediately get an alert notification from HWinfo64 that my voltage (vCore) has spiked beyond 1.6v (it hits over 1.7v), that my temps have spiked above 100c (104c I saw…) and that my power has spiked above 300W (I saw 340-350W). It's almost as if my CPU is being put under a variable load (but HEAVY) stress test as soon as it boots up.

My voltage NEVER used to go beyond 1.4v normally, and that is the maximum measure at the Vlatch sensor which is much more accurate than just looking at the "maximum" column for vCore. Under a heavy load, obviously my voltage usually drops even lower.

350W of power is insane for this chip, and I've only ever seen it pull over 300W when I had the overclock set to 5.2 or 5.3 all core and put it to an AVX-enable small FFT test.

Important to also note, I turned off my overclock and enforced all limits to the CPU — still see the same behavior with the voltage going up to 1.7v, the wattage being high after booting, and temps high too — but overall its lower because the CPU is not operating at a frequency of 5.1+ (looked like about 4.5ghz with the OC off….)

Also important to note, I closed HWinfo64 in case it was a bug with that program, and used the OCCT program to monitor. Still saw the same behavior. When this is happening, I can still open some minor programs without the computer lagging, really. I had to open OBS studio to try to record the behavior I was seeing in HWinfo64, opened fine. Also was able to get Task Manager open — nothing there seems to suggest a program is running using heavy CPU usage.

More details on my gear:

10900k (SP 92, a good chip) overclocked to 5.1 and OCCT/P95 stable. Even with AVX in P95 it handled it like a champ. This chip can do 5.3ghz stable with only a heat limitation once my coolants heats up.

Asus Apex Maximus XIII Z590 board

TridentZ 4000mhz Ram, CL 16-16-16-32 (confirmed its B-die). Manually set to the XMP II profile settings.

I'm using good parts and t's all water cooled, my typical scenario is a 5.1ghz overclock all core, I use offset mode with the SVID behavior set to "Best Case Scenario" and LLC at level 5, and I tune the offset to about +0.030 and maybe add +0.005 or +0.010 to the V;F curve offset at my max core speed (so, just to the 51x frequency). This is because the "Best Case Scenario" setting for SVID behavior are just a TAD too low to be stable, so I use the offsets to compenstate. This has worked well for over a year. I only really game, the only time my CPU gets hammered is during a stress test, which is very infrequent.

I will try to get the video from OBS uploaded if that's helpful. If anyone can help me out, that would be amazing as I'm worried this chip is going to fry.