Dell Optiplex 960 RAM Error Message
Everything was fine with this Optiplex 960 I bought surplused, in perfect condition. I installed Windows 7, ran updates and away we go.
I hit the power button this morning and before Windows even starts, I get this error message:
"MIXING ECC AND NON-ECC DIMMs IS NOT SUPPORTED BY THIS PLATFORM."
System lights ONE and THREE are on, indicating a memory problem.
But nothing was changed, system or memory-wise. I've never even messed with the RAM since I bought it last week.
All four DIMM slots are filled, with a total of 4GB. These are Samsung 1GB sticks, all identical.
I was planning on adding more RAM, anyway, but maybe I should pull all four sticks out and start with two matching pairs? What happened here?
I can't even run the Dell diagnostics to test the memory - this error message halts the system. What if I pulled the CMOS battery? Would that clear this error message?