PCIe Lane Distribution
CPU 1 PCIe Lane Distribution
|
Port |
PCIe |
Motherboard Connector |
PCIe Lane Assignment |
|---|---|---|---|
| PE0 | x81 | M.2-C1 (x2), M.2-C2 (x2) | Internal 2x NVMe M.2 Slots |
| x8 | JPCIE3A1 | Not Used | |
| PE1 | x16 | JPCIE2 | NVMe Drive Bays 0, 1, 2, 32 |
| PE2 | x16 | JAIOM1 | AIOM/OCP 3.0 NIC Slot A1 |
| PE3 | x8 | JPCIE1A1 | NVMe Drive Bays 4, 5 |
| x8 | JPCIE1B1 | NVMe Drive Bays 6, 7 | |
| PE4 | x8 | P1_NVME0 | NVMe Drive Bays 8, 9 |
| x8 | P1_NVME1 | NVMe Drive Bays 10, 11 | |
|
PE5 |
x8 |
P1_NVME2 |
NVMe Drive Bays 12, 13 |
|
x8 |
P1_NVME3 |
NVMe Drive Bays 14, 15 |
1Some PCIe lanes from this port are routed directly to onboard devices (USB controller & BMC).
2 An alternate PCIe lane assignment is PCIe expansion slot 7, 8.
CPU2 PCIe Lane Distribution
| Port |
PCIe |
Motherboard Connector |
PCIe Lane Assignment |
|---|---|---|---|
|
PE0 |
x8 |
JPCIE7A1 |
PCIe Expansion Slot 1, 2 |
|
x8 |
JPCIE7B1 |
||
|
PE1 |
x8 |
JPCIE5A1 |
AIOM/OCP 3.0 NIC Slot A2 |
|
x8 |
JPCIE5B1 | ||
|
PE2 |
x16 |
JPCIE6 |
PCIe Expansion Slot 3, 4 |
|
PE3 |
x8 |
JPCIE4A1 |
PCIe Expansion Slot 5, 6 |
|
x8 |
JPCIE4B1 |
||
|
PE4 |
x8 |
P2_NVME0 |
NVMe Drive Bays 16, 17 |
|
x8 |
P2_NVME1 |
NVMe Drive Bays 18, 19 |
|
|
PE5 |
x8 |
P2_NVME2 |
NVMe Drive Bays 20, 21 |
|
x8 |
P2_NVME3 |
NVMe Drive Bays 22, 23 |