Ok, here are the results:
mem 2.02 V, nb 1.26 V, boot windows, start wow, run around a bit, *BAM*, BIOS corrupt upon boot, recover to 0605 (had 1306 latest flashed before)
mem 2.02 V, nb 1.30 V, boot windows, start wow, run for corpse, res, *BAM*
mem 2.02 V, nb 1.40 V, boot windows, start...