IBM x3850 X6 Planning And Implementation Manual page 31

In the middle of the server, there is a passive midplane that connects all modular components
to each other. Figure 2-6 shows the x3850 X6 midplane:
Figure 2-6 x3850 X6 midplane (front side showing Compute Book connections)
Each Compute Book contains one Intel Xeon processor, 24 memory DIMMs, and two
dual-motor fans. 24 DIMM slots are located on both sides of the Compute Book's processor
board, 12 memory modules on each side.
Figure 2-7 shows the Compute Book with the clear side cover removed. The front of the
Compute Book are two hot-swap fans.
Figure 2-7 The Compute Book
The x3850 X6 server supports up to four Compute Books; the x3950 X6 server supports up to
8 Compute Books. For more information about the Compute Books, see 3.6, "Compute Book"
on page 64.
Compute Book with
the side cover
removed showing 12
of the 24 DIMM
sockets (the other 12
are on the other side
of the book.
Chapter 2. Technology
15