AST RESEARCH TECHNICAL BULLETIN TB-0270 02/25/87 IBM\XT-286 MOTHERBOARD RAMPAGE\286 MEMORY The IBM\XT-286 comes standard from IBM with two rows of SIP and one partial row of RAM on the motherboard. When combinations of SIP and\or DIP memory are removed from the motherboard and are re-populated with RAMpage\286 memory, the XT\286 system would not boot, display anything on the screen or access any of the disk drives. In conclusion, it appears that the standard 640Kb of memory installed on the motherboard must remain intact and cannot be reduced and\or replaced.