M918 v1.2A with EPROM
M558 (maybe) REV:3.2 - looks like the M558 at PC Chips Lottery but has no COAST slot (and there are NO solder points for it) and 2 cache chips are not installed. with ASD chip
Matsonic MS6260S REV.1.6A with ASD chip
M570 V1.3 (PS/2 port installed, only 1 cache chip installed)with Atmel chip
M918 starts but hangs after HDD detection, Matsonic untested, other two look dead.