IBM System x3250 M4 24Supported operating systemsOperating systems supported by the server are:IBM 4690 Operating System V6Microsoft Windows Server 2008 FoundationMicrosoft Windows Server 2008 R2Microsoft Windows Server 2008, Enterprise x64 EditionMicrosoft Windows Server 2008, Enterprise x86 EditionMicrosoft Windows Server 2008, Standard x64 EditionMicrosoft Windows Server 2008, Standard x86 EditionMicrosoft Windows Server 2008, Web x64 EditionMicrosoft Windows Server 2008, Web x86 EditionMicrosoft Windows Server 2012Red Hat Enterprise Linux 5 Server EditionRed Hat Enterprise Linux 5 Server with Xen x64 EditionRed Hat Enterprise Linux 5 Server x64 EditionRed Hat Enterprise Linux 6 Server EditionRed Hat Enterprise Linux 6 Server x64 EditionSUSE LINUX Enterprise Server 10 for AMD64/EM64TSUSE LINUX Enterprise Server 10 for x86SUSE LINUX Enterprise Server 10 with Xen for AMD64/EM64TSUSE LINUX Enterprise Server 11 for AMD64/EM64TSUSE LINUX Enterprise Server 11 for x86SUSE LINUX Enterprise Server 11 with Xen for AMD64/EM64TVMware ESX 4.1VMware ESXi 4.1VMware vSphere 5.0 (ESXi)VMware vSphere 5.1 (ESXi)See the IBM ServerProven® website for the latest information about the specific versions and servicelevels supported and any other prerequisites:http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/nos/matrix.shtml