ALE isn't transitioning, though it does go high and stay there.

nPSEN isn't active.

The crystal (in the on-board oscillator) is oscillating, and the oscillator is putting out a clock, which appears where it should, according to the doc's on the MCU's output, though one diagram in the datasheet indicates it should be grounded, which works but doesn't change anything else. Several of them, both from AMD and from Intel behave similarly. The AMD parts get hotter, just in case it matters.

It's a mystery.

RE