ProLiant DL580 G5 Certifications Product Versions Level Red Hat Enterprise Linux (x86_64) 6.0 - 6.x Certified Red Hat Enterprise Linux (i386) 6.0 - 6.x Certified Red Hat Enterprise Linux 5.1 - 5.x Certified [1] Red Hat Enterprise Linux 4.5 - 4.x Certified [2] Additional Notes What version of Red Hat Enterprise Linux is required to support Intel Xeon 7400 series processors (codename "Dunnington")? What version of Red Hat Enterprise Linux is required to support Intel Xeon 7400 series processors (codename "Dunnington")? Vendor: Hewlett-Packard Hewlett-Packard web site