We have a number of HP Z600 workstations that were upgraded with additional memory. After rebooting the system reports:
207-Incompatible DIMMs detected slot CPU1 DIMM1
203-Memory module failed self-test and the failing rank was disabled slot CPU1 DIMM1.
The BIOS indicates DIMM1 as ERR
Diagnostics show the memory module at the correct size and speed but its part number does not fully populate.
When the DIMM is removed the system still reports the 203/207 error.
I have tried to update the BIOS with the latest version, apply default setup and clear CMOS but the device still reports an error with DIMM1 (populated or unpopulated). All other DIMMs work fine.