User's Manual

15
Chapter 2: Hardware Setup
3
Insert the new memory module in the slot:
a
Push the retaining clips on the slot out to the sides.
b
Align the notch on the gold edge of the module with the notch in the memory slot.
c
Apply rm and even pressure to push down the memory module. The retaining clips will snap into position
when the module is inserted correctly.
a
b
c
Note:
Hold the memory module by its edges and avoid touching the gold connectors.
4
Place the rear top cover back and slide it into secure position:
a
Align the hexagons at the side of the rear top cover with the slots on the chassis' edge, place it back and
push it to slide it back into position.
b
Put back and fasten the screw you removed in step 2.
To conrm that your RS4021xs+ recognizes the new memory capacity
1
Install DiskStation Manager (DSM). Please see "
Install DSM on Synology NAS
" for more information.
2
Sign in to DSM as
admin
or a user belonging to the
administrators
group.
3
Go to
Control Panel
>
Info Center
and check
Total Physical Memory
.
If your Synology NAS does not recognize the memory or does not start up successfully, please make sure that
the memory module is installed correctly.