HP BL685C 4 Processor Problem

[Majeedullah]

BL685C came with two processors we added two addtional processor server is not booting. We have eight of these BL685c and all are haveing the same problem. We have moved the two addtional processor to slot 1 & 2 and left slot 3 & 4 and system boots up. So when ever we have 4 processor system does not boot up. We get no output to monitor any one have any ideas on this

[Adrian Clint]

I cant see anything in BIOS update history so....

Does the memory need to be shuffled around?

Do you need to put memory in specific slots for each server to "see" its own memory?

[Majeedullah]

All four banks are fully populated with memory. For all four blade servers. But cant see the 3rd and 4th processors