A system equipped with six Sun InfiniBand Dual Port 4x QDR PCIe Low Profile Host Channel Adapter M2 Cards might post CPU faults and fail to boot.
Workaround
Access the BIOS Setup Utility.
Navigate to RC Settings > QPI and change:
MMIOH Size per IOH from 2Gb to 4Gb (the default is 2Gb).
Navigate to RC Settings > Chipset > NorthBridge Configuration and change:
PCIE-MMIO-64 Bits Support to Enabled (the default is Disabled).
Save your changes and exit the BIOS Setup Utility.
Reboot the server.