215-DIMM Configuration Error

[Stanka1]

I have a HP Compaq Elite 8300 CMT computer and when I start it, shows a black screen and error. The text of that error is: 215-DIMM Configuration Error.   Please remove power from the system and reinstall memory modules. Populate modules starting with slot DIMM4, then DIMM3, then slot DIMM2 and DIMM1. I still checked the DIMMs. but it is starting with DIMM4. DIMM: Hynix 2GB. What can be the issue?

[itsmyname]

@Stanka1 -- will the computer start when you have connected exactly one stick, and that stick is in DIMM #4?  If so, power-off, and add another stick into DIMM #3. Does it start with 2 sticks?  If not, remove the stick from DIMM #3, and try an alternate stick in DIMM #3. If "nothing" works while in DIMM #3, repeat the process using only DIMM #4 and DIMM #2. If "nothing" works while in DIMM #2, repeat the process using only DIMM #4 and DIMM #1. 

[Stanka1]

Does not start. It is still displaying that error but the RAM sticks is starting from DIMM #4. I have usually one stick but I tryed that stick in all DIMM slots. It is an issue in the DIMM stick or in the system board?