Собственно если в бубунте зайти в консоль там будет: Your CPU appears to be lacking expected security protections. Please check your BIOS settings, or for more information, run: /usr/bin/check-bios-nx --verbose
Если ввести эту команду: This CPU is family 15, model 4, and has NX capabilities but is unable to use these protective features because the BIOS is configured to disable the capability. Please enable this in your BIOS. For more details, see: https://wiki.ubuntu.com/Security/CPUFeatures
Что бы это значило? Английский плохо знаю.