Drats, dash darn it! So my lovely I7 machine can now run multiple applications in RAM even while each application need 2GB each but I can not modify my device driver to access the extra memory and give the driver 16 GB of paged memory to work with. This means once I am sure the code is debugged, I need to write it to work in 64 bit Haiku I guess. -------------------------------------------- On Sun, 7/20/14, Rene Gollent <anevilyak@xxxxxxxxx> wrote: Subject: [haiku-3rdparty-dev] Re: (no subject) To: haiku-3rdparty-dev@xxxxxxxxxxxxx Received: Sunday, July 20, 2014, 9:13 AM On Jul 20, 2014 11:40 AM, "Earl Pottinger" <dmarc-noreply@xxxxxxxxxxxxx> wrote: > How do I use PAE in 32 bit Haiku? My machine has 32GB of RAM and I would like to make full use of it. If your CPU supports it, it's used automatically, that isn't something that's controlled at an application level. Bear in mind, PAE doesn't allow an individual app to address > 4GB, it just allows the OS as a whole to do so. Regards, Rene