That is the PLX PCI Riser (#1, in center). Would you reseat that and see if that resolves? If it doesn't, do you have another 815 we can test using its riser?
Hello. I received the above error on a Dell R815 over the weekend. The server is running ESXi 5 which responded with a PSOD. How can I find out which device/slot Bus 4 Device 4 Function 0 is referring to? Thanks,Brian
R815 - "E171F Fatal Error on Bus 4 Device 4 Function 0" Question