Acer Network Device Altos R520 - Manual (Page 84)

3 System upgrade 74
4 Open the clips on the DIMM slot(s) (A).
5 Align (B) then insert the FBDIMM into the socket (C).
6 Press the holding clips inward to lock the FBDIMM in place (D).
Note: The DIMM slot is slotted to ensure proper installation. If
you insert a FBDIMM but it does not fit easily into the socket, you
may have inserted it incorrectly. Reverse the orientation of the
FBDIMM and insert it again.
7 Observe the post-installation instructions described on page 40.
To remove FBDIMMs:
Before you can install a new DIMM in a socket, first remove any
previously installed DIMM from that socket.
Important: Before removing any DIMM from the mainboard,
make sure to create a backup file of all important data.