Lenovo ThinkEdge SE455 V3 User Manual page 54

Table 16. PCIe riser assemblies and corresponding slots
PCIe riser assembly
PCIe riser 1
PCIe riser 2
Note: PCIe riser 2 is optional.
Depending on the selected acoustic mode, the slot priorities for different PCIe adapters might be different.
See the following section corresponding to the selected configuration:
• "Acoustic mode disabled" on page 46
• "Optimised for Acoustics - Mode 1" on page 47
• "Optimised for Acoustics - Mode 2" on page 48
PCIe adapter installation rules and order: Acoustic mode disabled
Installation priority
1
2
3
46 ThinkEdge SE455 V3 User Guide
Component
Serial port module
RAID adapter:
1. ThinkSystem RAID 940-8i 4GB Flash PCIe
Gen4 12Gb Adapter
2. ThinkSystem 4350-8i SAS/SATA 12Gb HBA
3. ThinkSystem RAID 5350-8i PCIe 12Gb
Adapter
4. ThinkSystem 440-8i SAS/SATA PCIe Gen4
12Gb HBA
5. ThinkSystem RAID 540-8i PCIe Gen4 12Gb
Adapter
Double-wide GPU
PCIe slots
• Slot 3: x16 (Gen5 x16 lanes)
• Slot 4: x16 (Gen4 x8 lanes)
• Slot 5: x16 (Gen4 x8 lanes)
Notes:
• When the serial port module is installed, Slot 5 is not
supported.
• When a double-wide GPU is installed in Slot 3, Slot 4 is
not supported.
• Slot 6: x16 (Gen4 x8 lanes)
• Slot 7: x16 (Gen5 x16 lanes)
• Slot 8: x16 (Gen4 x8 lanes)
Notes:
• Slot 6 and Slot 8 are not supported in the following
configurations:
– Front SATA drive backplane and internal NVMe
drive backplane connect to the system board
– Front NVMe drive backplane and internal NVMe
drive backplane connect to the system board
• When a double-wide GPU is installed in Slot 7, Slot 6 is
not supported.
PCIe slot priorities
5
8, 5, 4, 7
7, 3