One might have thought all the Intel stability issue malarkey was behind us, given the official 0x129 microcode fix came out back in August. However, although this update was supposed to fix the issue, it wasn't a root cause fix.
Now, Intel's releasing a proper root cause fix for affected 13th and 14th Gen CPUs in its 0x12B microcode update. This update "addresses elevated voltage requests by the processor during idle and/or light activity periods" which have been narrowed down to being caused by a particular "clock tree circuit within the IA core".
