Looking at the sockets vertically, they are numbered as
shown below.
1L 2L 3L 4L 5L 6L 1H 2H 3H 4H
3.
If an option card is blocking access to the SIMM sockets,
follow the steps in “Removing an Option Card,” on page
5-16, to remove the card(s).
Installing and Removing Options
5-21