Yamaha A3000 Owner's Manual page 316

Installing SIMMs
Appendix
314
Install the SIMMs into the memory sockets.
5.
First identify the sockets you will install the SIMMs into. There are four sockets, divided
into two banks. The two sockets for bank 1 are labeled 1, and the two sockets for bank 2
are labeled 2. Bank 1 must be filled first, and then if necessary you can proceed to fill
bank 2. (The labels 1 and 2 are located at the left side of the slot when viewed from the
front panel.)
NOTE: Although the above illustration does not show the SCSI board mounted in the A3000, please note
that there is no need to remove the SCSI board when installing SIMMs.
If you are using different SIMM sizes in the two banks, the larger size must be
installed into the Bank 1 sockets to ensure that the A3000 handles the memory
correctly. For example, if you are adding one pair of 32MB SIMMs and one pair of
8MB SIMMs, you must install the 32MB SIMMs into Bank 1. If you already have
SIMMs installed in Bank 1 and are now adding a larger pair, you will need to move
the original pair into Bank 2 and insert the new pair into Bank 1.
When inserting SIMMs, always begin with the free socket furthest from the A3000 front
side. (SIMMs will not fit into the sockets if you reverse this order.)
Hold the SIMM with its cutout part facing to the left (as viewed from the front panel),
and set it into the socket at an angle as shown in Figure 1. Then push in direction shown
in Figure 2 so that it becomes upright and the hook snaps into place.
(1)
1
2