IBM THINKPAD S05L-1270-01 - Manual (Page 428)

Memory Checkout
DIMMs are available for increasing memory capacity.
Note: The Models 765L and 765D have a dip switch on
the DIMM adapter card. If you are installing a
64-MB 2-bank DIMM, move the the dip switch to
the left. The memory (8 MB) on the DIMM adapter
card is disabled.
You can install a 64-MB 2-bank DIMM in slot 2. If
you try to install the it in slot 1, it will not be
recognized as 64MB DIMM.
Memory errors might stop system operations, show error
messages on the screen, or hang the system.
Use the following procedure to isolate memory problems:
Dip
Switch Slot 1 Slot 2 Total
Memory Displayed
Value
Right 16MB 0MB 32MB 32384KB
Right 16MB 8MB 40MB 40576KB
Right 16MB 16MB 48MB 48768KB
Right 16MB 32MB 64MB 65152KB
Right 32MB 32MB 80MB 81536KB
Left 16MB 64MB 88MB 89728KB
Left 32MB 64MB 104MB 106112KB
416 IBM Mobile Systems HMM