In addition to the power button pads on the logic board, there are pads for PMU NMI and PMU RESET, which work when their pads are shorted together (with a tool like a flat blade screwdriver). The pads are separated with a white horizontal line between the pads.
These pads are located about 1cm left of the back left corner of the optical drive.
sgnJfoPV PMU RESET
Was this article helpful?