Thanks for your prompt answer on this issue!
I did buy a new i3. Than I checked the tested, as indicated on Intel supported memory list and bought the KVR1333D3S4R9S 4giga from Kingston.
Beep, beep, beep was the answer!
After long testing I found that the detailed S1200BTS (this is my motherboard, not BTL), needs not registered equal to non buffered memories but the KVR1333D3S4R9S are registered!!!
Is this the problem? Is the Intel compatible memory list wrong?
Please help me: I need to get running server 2003 and this is Nº 3 mother board, Nº 2 processor and Nº 3 memories!
With warm regards,