Originally, I had all 4 sticks of ram in my computer setup with the 1Gb, 2 Gb, 1 Gb, 2 Gb configuration and everything worked fine. I then attempted to update my BIOS to get a new graphics card to work. Both times I updated the BIOS it was successful, but it wouldn't boot to POST and required a lot of work to reset the CMOS. Upon, getting my computer to post the ram refuses to work in any configuration other than while in channels 1 and 3, 1 and 4, or 2 and 4. It will also run when a single stick is in any channel. The issue to me seems to be that the computer does not get to post when the RAM is in dimms next to each other. When they are next to each other I get the beep code indicating a memory issue. I have tested all 4 sticks and each dimm individually. The mother board is an Intel DH77KC. Any input is appreciated.