Messages in this thread | | | Date | Wed, 01 Oct 2008 15:38:06 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: How to make all of 4GB of memory available? |
| |
Gene Heskett wrote: > Greetings; > > 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?
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.
J
| |