N1 board
Gen 3 PCIe
switch
PCI Express and CCIX
expansion slots
N1 SoC
PCIe
SATA 0
SATA 3.0
×1
GbE
controller
Ethernet
×1
USB 3.0
Host
controller
USB 3.0
×4
×16
×16
PCIe/
CCIX
SATA 1
×16
×1
×8
×16
USB 3.0
USB 3.0
USB 3.0
×1
Chip2Chip
MCP
I2C
SCP
I2C
CTI
Slot 4
Slot 2
Slot 3
Slot 1
×16
×16
Figure 2-9 PCI Express and CCIX systems
The GbE, USB 3.0, and C2C connectors are accessible on the back panel. The PCIe and CCIX slots, and
the SATA ports, are accessible by removing the side panel. See
2.8.2
PCI Express and CCIX expansion slots
The following table shows the PCIe expansion slots on the N1 board.
Table 2-8 PCI Express expansion slots
Slot number PCIe lane connector size Number of lanes connected Unused lanes Comment
Slot 1
×4
1
3
PCIe
Slot 2
×16
16
0
PCIe
Slot 3
×16
8
8
PCIe
Slot 4
×16
16
0
PCIe CCIX dual-use
Note
• Using slot 2 as the ×16 slot:
2 Hardware description
2.8 PCI Express and CCIX systems
101489_0000_02_en
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