Len Krieger wrote:
I am using the original Corsair CM2X2048-6400C5 memory/ram 4GB (2 sticks of 2GB) I bought two more sticks of the exact same memory. Same Brand, same everything I read the serial/model numbers off the exisiting memory I do have and ordered the same.
The problem is you are assuming if you buy two more DIMMS of the exact same brand and model, they are identical to the original matched pair. Unfortunately this is not true. Sometimes a second matched pair will work but often they don't. The only way you can be sure 4 DIMMS will work together is if you buy them all at the same time as a matched set.
I tried using a pair of Corsair CM2X2048-6400C5 in my DP35DP. The system was never stable and got lots of BSOD's. I replaced them with XMS2 memory and all the problems went away. I never tried running 8GB of memory in the DP35DP and Corsair doesn't list an 8GB matched kit for the DP35DP. It's the same with Crucial and Kingston brand. While technically on paper Intel says the DP35DP can run 8GB I doubt it's true. Or maybe it was true at one time but DDR2 memory is now old technology and finding an 8GB matched kit is very rare and expensive.
My advice is you give up on the idea of running 8GB of memory in the DP35DP. I actually bricked one of my DP35DP motherboards trying to mess with the memory settings. If you want a system with 8GB of memory you will need to replace the motherboard that uses DDR3.