Invalid Lockstep Memory Configuration - HP ProLiant BL620c - G7 Server Troubleshooting Manual

207-Invalid Memory Configuration - Single channel memory...
...mode supports a single DIMM installed in DIMM socket 1. Please remove all other DIMMs or install memory in
valid pairs. System Halted.
Audible Beeps: 1 long, 1 short
Possible Cause: DIMMs are installed in pairs, but the server is in single channel memory mode.
Action: Remove all other DIMMs or install memory in valid pairs and change the memory mode.
207-Invalid Memory Configuration - Unsupported DIMM in Socket X
Audible Beeps: 1 long, 1 short
Possible Cause: Unregistered DIMMs or insufficient DIMM timings.
Action: Install registered ECC DIMMs.
207-Memory Configuration Warning - DIMM In Socket X does not have Primary
Width of 4 and only supports standard ECC.
Advanced ECC does not function when mixing DIMMs with Primary Widths of x4 and x8.
Audible Beeps: 1 long, 1 short, or none
Possible Cause: Installed DIMMs have a primary width of x8.
Action: Install DIMMs that have a primary width of x4 if Advanced ECC memory support is required.
209-Online Spare Memory Configuration - No Valid Banks for Online Spare
Audible Beeps: 1 long, 1 short
Possible Cause: Two valid banks are not available to support an online spare memory configuration.
Action: Install or reinstall DIMMs to support online spare configuration.
209-Online Spare Memory Configuration - Spare Bank is Invalid
Audible Beeps: 1 long, 1 short
Possible Cause: Installed DIMMs for online spare bank are of a size smaller than another bank.
Action: Install or reinstall DIMMs to support online spare configuration.
209-Hot-add Memory Configuration - Boards must be installed sequentially.
Audible Beeps: 1 long, 1 short
Possible Cause: Memory boards are not installed sequentially.
Action: Install or reinstall memory boards sequentially.

209-Invalid Lockstep memory configuration

Audible Beeps: 1 long, 1 short
Possible Cause: The memory is not installed properly to support Lockstep mode.
Action: See the server documentation for supported Lockstep memory configurations.
Error messages 130