Sun Fire X4800 M2 Certifications Product Versions Level Red Hat Enterprise Linux (x86_64) 6.x Certified [1] Red Hat Enterprise Linux (x86_64) 5.6 - 5.x Certified [2] Additional Notes RHEL 6.0 kexec/kdump can cause x2apic enabled systems to resetSun Fire X4800 M2 configured with 4TB memory Sun Server X2-8 (Sun Fire X4800 M2) Xen Kernel requires pci=nomsi boot parameter when all pcie slots are populated Vendor: Oracle America Inc.