IBM 6648 - Manual (Page 69)

8. To exit from the Configuration/Setup Utility program, press Esc and
follow the instructions on the screen.
System board memory
The following matrix cross-references the name of the computer (printed on
the logo) and the size, speed, and type of memory modules supported in the
computer.
Computers Memory Module
Size Speed Type
Types6568/6569/6648/6649 64 MB128 MB256
MB 133 MHz SDRAMNon-
ParityIndustry
Standard
Supported memory configuration
DIMM sizes of 64 MB, 128 MB and 256 MB are acceptable. Start filling DIMM
socket 0, then 1. Use 3.3 V unbuffered 133 MHz SDRAM non-parity DIMMs
only.
Computer exploded view -
Types 6568/6569/6648/6649
Chapter 2. Types 6568/6569/6648/6649 55