Vmin Shift Instability Root Trigger
Intel® has localized the Vmin Shift Instability subject to a clock tree circuit inside the IA core which is especially weak to reliability getting older below elevated voltage and temperature. Intel has noticed these situations can result in an obligation cycle shift of the clocks and noticed system instability.
Intel® has recognized 4 (4) working situations that may result in Vmin shift in affected processors:
1) Motherboard energy supply settings exceeding Intel energy steerage.
a. Mitigation: Intel® Default Settings suggestions for Intel® Core™ thirteenth and 14th Gen desktop processors.
2) eTVB Microcode algorithm which was permitting Intel® Core™ thirteenth and 14th Gen i9 desktop processors to function at increased efficiency states even at excessive temperatures.
a. Mitigation: microcode 0x125 (June 2024) addresses eTVB algorithm subject.
3) Microcode SVID algorithm requesting excessive voltages at a frequency and length which might trigger Vmin shift.
a. Mitigation: microcode 0x129 (August 2024) addresses excessive voltages requested by the processor.
4) Microcode and BIOS code requesting elevated core voltages which might trigger Vmin shift particularly during times of idle and/or gentle exercise.
a. Mitigation: Intel® is releasing microcode 0x12B, which encompasses 0x125 and 0x129 microcode updates, and addresses elevated voltage requests by the processor throughout idle and/or gentle exercise intervals.
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