IBM System x3300 M4 Product Manual page 6

The following figure shows the locations of the key components inside the server.
Figure 4. Inside view of the IBM System x3300 M4 server
Processor 1 is installed on the system board. Processor 2 is installed in on an expansion board as shown
in Figure 5.
Figure 5. Processor 2 installed on the expansion board
IBM System x3300 M4 6