IBM PC Server 720 (8642-xEx) Memory

Standard Memory: 64 or 128 MB (removable)
Maximum Memory: 512 MB / 1 GB with the 94G2942 memory card
Expansion Sockets: 16 sockets (2 banks of 8) / 16 sockets (2 banks of 8) on the 94G2942 memory card
Memory Comments: MODULES MUST BE ORDERED AND INSTALLED IN GROUPS OF EIGHT. The 8MB modules CANNOT be mixed with the 16MB or 32MB modules on the same card. However 16MB or 32MB modules CAN coexist on the same memory card.

Processor: 166MHz Intel Pentium