Greetings,
 
I just installed FC6 on a Dell 6800 with 32GB of ram.  When I run the free command it reports I only have about 15GB available.  I had FC4 on this machine and it saw all 32GB of Ram.  I checked the BIOS and it seems to see all 32GB as well.
 
Does anyone know if there is a known problem with FC6 seeing this much RAM?
 
--741