Lenovo ThinkSystem SR645 V3 - Page 52

PCIe adapters supported for different models
Table 15. PCIe adapters supported and their locations
Server rear view Supported types and slot location Number of
processors
Riser 1 assembly
• Slot 1: PCIe x16 (x8, x4, x1), low-profile
• Slot 2: PCIe x16 (x8, x4, x1), low-profile
1 or 2
Riser 2 assembly
• Slot 3: PCIe x16 (x8, x4, x1), low-profile
2
Riser 1 assembly
• Slot 1: PCIe x16 (x8, x4, x1), low-profile
• Slot 2: PCIe x16 (x8, x4, x1), full-height
Note: One rear wall bracket must be installed
next to the two PCIe slots.
1 or 2
PCIe adapter installation rules and order
When installing different types of PCIe adapters, refer to the following suggested installation priority:
Table 16. Recommended installation priority for different types of PCIe adapters
Installation priority
1. OCP module 3. Standard form factor (SFF) RAID/HBA adapter/Re-timer
adapter
2. Custom form factor (CFF) internal HBA/RAID adapter 4. Network adapter
When installing a specific PCIe adapter, refer to the following suggested slot installation priority:
Table 17. Recommended slot installation priority for PCIe adapters
Recommen-
ded slot
installation
priority
PCIe adapters
Maximum
supported
number
Must be
installed in
slot 1
• SFF RAID/HBA adapter/Re-timer adapter
– ThinkSystem RAID 540-8i PCIe Gen4 12Gb Adapter
– ThinkSystem RAID 940-16i 4GB Flash PCIe Gen4 12Gb Adapter
– ThinkSystem 440-16i SAS/SATA PCIe Gen4 12Gb HBA
1
Slot 1 > Slot 3
> Slot 2
• Network adapter:
– ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-port PCIe
Ethernet Adapter
1
1
42 ThinkSystem SR645 V3 User Guide