Your CPU is fairly recent. Currently Ubuntu (even the development version) is still using memtest86+ version 2.11.
If version 4.00 (ISO available here http://www.memtest.org/download/4.00/memtest86+-4.00.iso.gz) shows the right data about your CPU you should add a comment in this bug https://bugs.launchpad.net/ubuntu/+source/memtest86+/+bug/435575 In the changelog of version 4.00 you have this : - Added detection for AMD "Magny-Cours" CPU - Corrected detection for AMD 45nm K10 CPU -- shows wrong data about AMD Phenom II 810 https://bugs.launchpad.net/bugs/378087 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs