1401 and NVIDIA driver 1.9.0

Something not working? nullmothsystems.com/help lists every known problem and exactly what to do.

Windows (1401 1.9.0)

Ryzen (AM5) boards stuck at the prohibited sign / EB.MM.AKM: one more memory setting is tried before giving up.
Sticks that refuse direct writes, and sticks Windows doesn't show after the erase, are erased with diskpart instead of stopping.
Apple's recovery server errors (502, timeouts, resets) are retried longer.

macOS 15 Sequoia. Requires OpenCore.