If the system has only 1 CPU installed, install the RAID controller to PCIe* Slot 5 or 6. For more information, refer to the technical product specification.
PCIe* add-in card slots and their properties are described below:
Slot 1: PCIe* 3.0 x8 (x8 electrical) handled by CPU2
Slot 2: PCIe* 3.0 x16 (x16 electrical) handled by CPU2
Slot 3: PCIe* 3.0 x8 (x8 electrical) handled by CPU2
Slot 4: PCIe* 3.0 x16 (x16 electrical) handled by CPU2
Slot 5: PCIe* 3.0 x8 (x8 electrical) handled by CPU1
Slot 6: PCIe* 3.0 x16 (x16 electrical) handled by CPU1