Hello, so the title says it all. We recently purchased 4 Proliant DL380p Gen 8's and each of the has the same issue. They each are running x64 Windows 2012 R2 Standard with 64 G of ram installed, but each reports only 48 GB usable if you view the computer properties.
I've tried updating any drivers that seem like they could possibly be relevant, including BIOS, etc but it doesn't help. All are fully patched through windows update. Any idea what it's going to take to make all 64 GB of RAM accessible on these 4 servers? Thanks