Ok got it, recompiled the kernel bzImage with highmem64G instead of highmem4G option. Now it works fine. I can read the full amount of ram. Tnx for the fast response.

Hi there I’m a sysadmin and have more then 40 PC in my office. I using this function to get hardware info about my machines. But the problem arises when I try to quick inventory a machine with more then 4GB of ram.
FOG hardware inventory doesn’t detect more then 4GB of ram using quick host inventory, it report always lower then that.