TYAN THUNDER I840 User Manual page 17

Here are some details of memory installation for this board:
Inner and outer RIMM sockets must be matching (e.g. if you have one RIMM module in the inner
socket, another RIMM module must be installed in the other inner socket, and so on).
See p. 18 and Figure 2.1 (below) for an example.
Outer Module
Any empty slots must be filled with C-RIMM Continuity modules. Tyan has included (2) C-RIMM
modules for your convenience (examples** are shown above in Figure 2.1).
This motherboard supports up to 2GB* PC800 ECC Registered RDRAM. Check the Tyan mem-
ory compatibility section of the website for more details: http://www.tyan.com
* not verified at time of print, check the Tyan website for updates: http://www.tyan.com
** note: the examples may not necessarily represent the actual C-RIMMs included with the board.
Thunder i840 S2520
Inner Modules
are matching
Figure 2.1
Outer Module
17