HP Z Workstation Z240 Certifications Product Versions Level Red Hat Enterprise Linux (x86_64) 7.2 - 7.x Certified [1] Red Hat Enterprise Linux (x86_64) 6.8 - 6.x Certified [2] Additional Notes Intel Xeon E3 v5 and 6th Generation Intel Core product family processors may not reach lowest frequency Intel Xeon E3 v5 and 6th Generation Intel Core product family processors may not reach lowest frequency Vendor: HP Inc.