New mobo, 4 core AMD Phenom cpu & 4 GB of dram. I cannot find the switch in a
make xconfig that will allow use of all of it, I am only seeing 3GB.
Am I going blind in my dotage?
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Elliptic paraboloids for sale.
Does it all appear in the e820 map? If not, then the chipset is
probably masking it; check to see if there's any likely-looking BIOS
options to make it appear.
I assume you're compiling for either 32-bit PAE or 64-bit. If you're
compiling 32-bit without PAE (HIGHMEM64G) then the remaining Gbyte may
simply be above 4G and out of the kernel's reach.