DIMM 3A and B only support single rank memory
Posted on 2007-11-16
I'm trying to upgrade a Dell 2850 GII from 8 to 12GB RAM. The MoBo allows up to 16GB and currently has 4-2GB sticks of PC2-3200R in slots 1 A&B and 2 A&B. When I insert two more of the same memory, I get the message that slots 3 A&B only support single rank DIMMs, and I should remove the dual rank DIMMs. If this memory works for the rest of the memory, what memory do I need to use in these last two slots?