We are installing is properly, in proper channels - evenly. We have 2x2GB DIMM installed in A1+B1 and we are adding additional 2x2GB DIMM to A2+B2. Server throws a memory configuration error. However, if we replace the RAM - it works fine. The RAM is identical to the one already installed(speed etc) - just a different vendor.
We also have a RAID battery error - not sure if related in any way.
What could be the issue?