CONFIGURATION GUIDE – NEC Express5800/R120g-2E Storage-RichNEC Corporation Revision 6.0 – April, 2017 18Maximum Available MemorySee the table below for the maximum memory size that you can actually use on your system.The maximum available memory is less than the maximum physical memory supported by your system because somechipsets require PCI resource space of about 750MB. PCI resource requirements vary depending on the type and thenumber of PCI cards you are using.Maximum Memory Size Supported by OS Maximum Available MemoryMicrosoft Windows Server 2008 R2 Standard 1 32 GB 32 GBMicrosoft Windows Server 2008 R2 Enterprise 1 2 TB 1 TBMicrosoft Windows Server 2012 Standard 1Microsoft Windows Server 2012 Datacenter 1Microsoft Windows Server 2012 R2 Standard 1Microsoft Windows Server 2012 R2 Datacenter 14 TB 1 TBMicrosoft Windows Server 2016 Standard 1Microsoft Windows Server 2016 Datacenter 124 TB 1 TBRed Hat Enterprise Linux 6 (x86_64)Red Hat Enterprise Linux 76 TB 1 TBVMware ESXi 5.5 2 4 TB 1 TBVMware ESXi 6.0 3 6 TB 1 TBVMware ESXi 6.5 4 12 TB 1 TB1 The maximum available memory size of Hyper-V systems is below:- Windows Server 2008 R2 Standard : 32 GB- Windows Server 2008 R2 Enterprise : 1 TB- Windows Server 2012, Windows Server 2012 R2 : 4 TB- Windows Server 2016: 24 TB2 Up to 1TB of main memory is available to each virtual machine.3 Up to 4TB of main memory is available to each virtual machine.4 Up to 6TB of main memory is available to each virtual machine.