Good news! It appears that the 750 will support a 32 mbyte card! I just received a 16 mbyte card from Kingston. Inside the box is a letter and parts list which includes a 32 mbyte part: Kingston P/N IBM P/N Description KTM-750/32 A1987A 32MB Memory Upgrade Module The letter specifically says that the memory is for the 750/750C and that system memory can be expanded to a max of 36MB.