We are using X7SLA-H mother boards, these are suppossed to support 2 GB of ram. But we installed 4 GB the BIOS can report 4 GB as installed but only 3.5 GB as available. The graphics card DMVT is disabled so it's just 64 MB.
Did anyone encounter the same problem?
Do you think it has something to do with memory remapping?
We think that it has nothing to do with the kernel because the BIOS reports this amount even before the booting.