On 07/22/2010 05:43 PM JohnS wrote: > On Thu, 2010-07-22 at 17:33 -0400, ken wrote: >> On 07/22/2010 02:39 PM Hakan Koseoglu wrote: >>> JD, >>> On 22/07/10 10:25, John Doe wrote: >>>> I was wondering if anyone would know the cons of running a PAE kernel...? >>>> I have a 4GB pc and was wondering if it was worth going the PAE way to gain >>>> those exta 700MB... >>> You should use 64 bit if possible but if you're seeing 3.2GB, it's more >>> likely that your motherboard is not capable (I have one of those here >>> right now). >>> >>>> In the past, I heard that these 700MB were normally reserved for bios or chipset >>>> stuff... >>> It still is, even with with 64 bit. If your motherboard supports >>> remapping this memory with 64 bit you can use the whole 4GB. Otherwise >>> you're limited to 3.2: >>> >>> hakan at photon:~$ free -m >>> total used free shared buffers cached >>> Mem: 3262 1972 1290 0 103 737 >>> -/+ buffers/cache: 1131 2131 >>> Swap: 7812 308 7504 >>> hakan at photon:~$ arch >>> x86_64 >> I'm trying to catch up... >> >> Is the 737M cached (in the output above) what is reserved for bios or >> chipset...? and what is gained back through remapping? > --- > If you would look at my prior post you can actually see it as in whats > used. It is 2GB of ram on 12GB capability. > > Run "dmesg | grep Memory" on your machine to see it. What do you mean above in the three instances of "it"? Don't know what you're referring to.