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Table 2-25 shows various 12X cables to satisfy the various length requirements.<br />
Table 2-25 12X connection cables<br />
Feature code Description<br />
#1861 0.6 meter 12X DDR cable<br />
#1862 1.5 meter 12X DDR cable<br />
#1865 3.0 meter 12X DDR cable<br />
#1864 8.0 meter 12X DDR cable<br />
General rules for 12X IO Drawer configuration<br />
If you have two processor cards, spread the I/O drawers across two busses for better<br />
performance. Figure 2-25 shows the configuration to attach 12X IO Drawers to a Power 720.<br />
720<br />
720<br />
+<br />
+<br />
+<br />
+<br />
One I/O-Drawer<br />
One I/O-Drawer<br />
PCIe<br />
PCI-X<br />
720<br />
720<br />
Figure 2-25 12X I/O Drawer configuration for a Power 720 with one GX++ slot<br />
+<br />
+<br />
+<br />
+<br />
Two I/O-Drawers<br />
Four I/O-Drawers<br />
PCIe<br />
PCIe<br />
PCI-X<br />
PCI-X<br />
PCI-X<br />
PCI-X<br />
Chapter 2. Architecture and technical overview 75
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