Hello,

I have an R810 running ESXi 5.5 that locked up and showed an E171F error on the display.  I pulled both risers and reseated them, removed both PCI cards on the risers.  A little while later it locked again.  I booted into Diagnostics and the memory tests came back clean, but the hardware tests came back with:

System Firmware:: Critical interrupt sensor (PCIE Fatal Err) Bus Fatal Error.

Any help is greatly appreciated!