SYSTEM CONFIGRATION GUIDE – NEC Express5800/R110i-1NEC Corporation Revision 2.0 – June, 2017 143 MemoryAvailable slots: 4Product Name / Description Part Number4GB DDR4-2400 UNB Memory Kit4GB Unbuffered ECC DIMM, DDR4-2400N8102-700F8GB DDR4-2400 UNB Memory Kit8GB Unbuffered ECC DIMM, DDR4-2400N8102-701F16GB DDR4-2400 UNB Memory Kit16GB Unbuffered ECC DIMM, DDR4-2400N8102-702FNOTE: Minimum one memory kit must be installed. It is recommended to install memory kits in pairs of two identical DIMMs for dual-channel symmetric memory configurations toincrease memory transfer speed. At least 5 GB of memory is required for VMware ESXi™ 5.5 and VMware ESXi™ 6.0Maximum 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 some chipsetsrequire PCI resource space of about 750MB. PCI resource requirements vary depending on the type and the number of PCI cardsyou are using.Maximum Memory Size Supported by Operating Systems Maximum Available MemoryMicrosoft Windows Server 2012 StandardMicrosoft Windows Server 2012 DatacenterMicrosoft Windows Server 2012 R2 StandardMicrosoft Windows Server 2012 R2 Datacenter4 TB 1 64 GBMicrosoft Windows Server 2016 StandardMicrosoft Windows Server 2016 Datacenter24TB 1 64GBRed Hat Enterprise Linux 7 6 TB 64 GBVMware ESXi 6.0 6 TB 2 64 GBVMware ESXi 6.5 12 TB 3 64 GB1 The maximum available memory size of Hyper-V systems are below:- Windows Server 2012, Windows Server 2012 R2 : 4 TB- Windows Server 2016 : 24 TB2 Up to 4 TB of main memory is available to each virtual machine.3 Up to 6 TB of main memory is available to each virtual machine.