I see the first test was voltage-level- -1
And the second was voltage-level-offset -2
With the 841 I'm running, when it's above 30C temperatures using the offset command is borderline shutdown? Did you try just the level -2 option?
Were you seeing any change with any of the voltage adjustments from baseline?
It would be a shame to lose that control, as it was a life saver with the 841.