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I have an Panasonic CF-52 with Core 2 duo P8400 CPU. I'm using Xubuntu 14.04. It has 4GB RAM. It's better to enable PAE for this system? Last time when I was using Elementary OS it was automatic downloading the PAE enable kernel, but Xubuntu does not.

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    it would be the best to use the 64bit-version...! – DJCrashdummy Jan 16 '16 at 9:00
  • If Xubuntu 14.04 was installed new from Live media (means not upgraded from earlier release), the default kernel has PAE support. Related: This answer was accepted for "How do I install a non-PAE kernel on PAE-enabled hardware for Ubuntu 12.04?", which also mentioned about Lubuntu/Xubuntu 12.04 and newer. – user37165 Jan 16 '16 at 9:26
  • 14.04 32-bit comes with a PAE kernel but you'd be better off installing the 64-bit version. – bain Jan 16 '16 at 12:01
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If you don't have over 4GB of RAM, then you don't need PAE. Ubuntu 12.04 and newer by default require PAE hardware.

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