Macintosh SE - 2 MB to 2.5 MB; 2 MB to 4 MB

Upgrades Memory Upgrade - 8
2 MB to 2.5 MB
Install two 256K SIMMs in
slots 1 and 2. Remove the
jumper permanently.
2 MB to 4 MB
Install two 1 MB SIMMs in
slots 1 and 2. Remove the
jumper permanently.
Note: Disregard the jumper
label “2/4 M” on the logic
board. A 4 MB upgrade
requires the removal of the
jumper.
Slot 1
Slot 4
Slot 3
Slot 2