PCIe adapter Maximum 
supported
Suggested slot priority
Single-wide GPU: T400, T1000
6
•  1 CPU: 1, 2, 3, 7
•  2 CPUs: 1, 4, 7, 8, 2, 5, 6, 3
Single-wide GPU: A2
8
•  1 CPU: 1, 2, 3, 7, 8
•  2 CPUs: 1, 4, 7, 8, 2, 5, 6, 3
PCIe Retimer card
ThinkSystem PCIe Gen 4 x16 Retimer 
Adapter
ThinkSystem SR630/SR650 V3 PCIe Gen 5 
x16 Retimer Adapter
4
•  1 CPU: 1, 2, 3
•  2 CPUs: 1, 2, 4, 5, 3, 6
Internal custom form factor (CFF) RAID/HBA/Expander
5350-8i, 9350-8i, 9350-16i
1
Not installed in PCIe slots.
The CFF RAID/HBA/Expander adapter is 
supported only in the 2.5-inch drive bay 
chassis, which is installed between the front 
backplane and the system board assembly.
440-16i, 940-16i
ThinkSystem 48 port 12Gb Internal Expander
Internal standard form factor (SFF) RAID/HBA adapter 
note2 on page 68
4350-8i, 5350-8i, 9350-8i
4
•  1 CPU: 2, 3, 1
•  2 CPUs: 2, 3, 5, 6, 1, 4
4350-16i, 9350-16i
2
440-8i, 540-8i, 940-8i
4
440-16i, 540-16i, 940-16i 
2
940-32i 1
External RAID/HBA adapter
430-8e, 440-16e, 940-8e
8
•  1 CPU: 1, 2, 3, 7, 8
•  2 CPUs: 1, 4, 7, 8, 2, 5, 3, 6, 9, 10
FC HBA adapter
All supported FC HBA adapters
8
•  1 CPU: 1, 2, 3, 7, 8
•  2 CPUs: 1, 4, 7, 8, 2, 5, 3, 6, 9, 10
NIC adapter
Chapter 5. Hardware replacement procedures 67