Typical Expansion Memory Configuration - Sony PCG-R505DF VAIO User Manual

Typical expansion memory configuration

Total System Memory (MB) On board (MB)
128
192
256
*
384
* The 384 MB memory configuration may require the removal and replacement of original
factory-installed memory module.
128
128
128
128
Precautions and Procedures
Slot (MB)
0
64
128
256
93