Invalid Memory Types Were Found On The Same Node. Please Check Dimm Compatibility. - Some Dimms May Not Be Used; Fibre Channel Mezzanine/Balcony Not Supported; Memory Found On Unpopulated Node. - Processor Is Required To Be Installed For Memory To Be Used; Mixed Processor Speeds Detected. Please Make Sure That All Processors Are The Same Speed. - System Halted - HP ProLiant BL45p User Manual

102 HP ProLiant BL45p Server Blade User Guide
Invalid memory types were found on the same node. Please
check DIMM compatibility. - Some DIMMs may not be used
Description: Invalid or mixed memory types were detected during POST.
Action: Use only supported DIMM pairs when populating memory sockets.
Refer to the applicable server user guide memory requirements.

Fibre Channel Mezzanine/Balcony Not Supported.

Audible Beeps: 2 short
Description: The Fibre Channel adapter is not supported on the server.
Action: Install the supported Fibre Channel adapter.
Memory found on unpopulated Node. — Processor is required to
be installed for memory to be used.
Description: The system detects DIMMs, but is unable to use the DIMMs
because a processor is not installed in the corresponding socket.
Action: To use the installed DIMMs, install a processor in the corresponding
socket.
Mixed processor speeds detected. Please make sure that all
processors are the same speed. — System Halted!
Audible Beeps: 1 long, 1 short
Description: Mixed processor speeds are not supported.
Action: Refer to the server blade documentation for supported processors. Be
sure that all installed processors are the same speed.