I have a server that I am going to be moving into a lowwer role it currently has 8 gig 4 KVR400D2D8R3/2GI I want to upgrade to 16 Gig I tried Adding anouther 4 of the same memory and I get no video and the unit will not boot I have tried with just the new memory or just the old memory and it works fien with 8 gig but will not work with 16 gig. what am I doing wrong.
From the board TPS:
Support a maximum of four ranks per channel. To populate eight DIMM modules on the board, all DIMMs must be single-rank.
KVR400D2D8R3/2GI is dual rank, which means only two DIMMs allowed per channel.