News for hackers. Stuff that matters.

A comment on Can a 32-bit OS machine use up all 8GB RAM + 20GB page file?. Parent comment

Re:Can a 32-bit OS machine use up all 8GB RAM + 20GB page file? by zokier on Saturday July 14, 2012 @11:42AM (#4244444)
Most likely your Ubuntu uses PAE, and Windows does not. NT kernel certainly supports PAE, but likely MS has disabled it in client systems for some reason.
[ Parent | on HN ]
Re:Can a 32-bit OS machine use up all 8GB RAM + 20GB page file? by masklinn on Saturday July 14, 2012 @01:40PM (#4244824)
> NT kernel certainly supports PAE, but likely MS has disabled

Nope. They can't actually disable it since the NX bit requires that PAE be enabled.

The limitation comes from licensing and tiering, and is handled in the kernel independently from PAE.

[ Parent | on HN ]