126
IBM eX5 Implementation Guide
4.4 System architecture
Figure 4-8 shows the block diagram of the x3690 X5.
Figure 4-8 x3690 X5 block diagram
Figure 4-9 shows the block diagram of the MAX5. The MAX5 is connected to the x3690 X5
using two cables connecting the two QPI ports on the server to two of the QPI ports on the
MAX5. The EXA ports and other two QPI are unused in this configuration.
Figure 4-9 MAX5 block diagram
SMI links
SMI
links
QPI
links
QPI
QPI
ESI x
4
x8 PCIe FL/FH Slot 1
x8 PCIe HL/FH Slot 2
OR
SAS Adapters
4 or 8 drives per
backplane
2.5” or 1.8” drives
PCIe x
4
PCIe x
1
PC
Ie
x
1
6
x8
x8
x4
10/100 Management port
Serial port
6x USB
SATA DVD
Video ports
FPGA
x16 PCIe Slot 1
Intel
I/O Hub
x8 PCIe LP Slot 3
x8 PCIe LP Slot 5*
x4 PCIe LP Slot 4†
Dual Port
Gb Ethernet
Intel
Southbridge
* Slot 5 keyed for the
10Gb Ethernet adapter
SAS Backplanes
Intel
Xeon
Processor 0
D
DR3 DI
MMs
on
s
y
s
te
m
pl
ana
r
(T
wo DI
MMs
p
e
r
c
han
ne
l)
Memory tray (16 DIMMs)
Intel
Xeon
Processor 1
Memory
buffer
Memory
buffer
Memory
buffer
Memory
buffer
Memory
buffer
Memory
buffer
Memory
buffer
Memory
buffer
QPI
QPI
MAX5
ports
IBM IMM
Controller
† Slot 4 x8 mechanical
SMI
links
DDR3 DIM
M
s
(T
w
o
D
IMM
s
p
e
r ch
ann
el
)
Memory
buffer
Memory
buffer
Memory
buffer
Memory
buffer
SMI
links
Memory
buffer
Memory
buffer
Memory
buffer
Memory
buffer
DDR3 DIM
M
s
(T
w
o
D
IMM
s
p
e
r ch
ann
el
)
External connectors
QPI
QPI
QPI
QPI
EXA
EXA
EXA
IBM EXA
chip
QPI
QPI
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