HP ProLiant DL985 Troubleshooting Manual page 131

207-Invalid Memory Configuration - Mismatched DIMMs within DIMM Bank
Audible Beeps: 1 long, 1 short
Possible Cause: Installed DIMMs in the same bank are of different sizes.
Action: Install correctly matched DIMMs.
207-Invalid Memory Configuration - Mismatched DIMMs within DIMM Bank...
...Memory in Bank X Not Utilized.
Audible Beeps: 1 long, 1 short
Possible Cause: Installed DIMMs in the same bank are of different sizes.
Action: Install correctly matched DIMMs.
207-Invalid Memory Configuration - Mismatched DIMMs within DIMM Bank...
...Memory in Board X Bank X Not Utilized.
Audible Beeps: 1 long, 1 short
Possible Cause: Installed DIMMs in the same bank are of different sizes.
Action: Install correctly matched DIMMs.
207-Invalid Memory Configuration - Unsupported DIMM in Bank X
Audible Beeps: 1 long, 1 short
Possible Cause: One of the DIMMs in bank X is of an unsupported type.
Action: Install supported DIMMs to fill the bank.
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.
Error messages 131