"Joachim Deguara" <joachim.deguara@amd.com> wrote:

James D. Parra wrote:

...

Hello,

Installed 4GB of physical memory, however only 3GB appear;

# cat /proc/meminfo MemTotal: 3342628 kB

It sounds like you need to go into the BIOS and ask for "Memwhole remapping" and set it to "Software". This happens because PCI takes the address space from 3-4GB (staying under the 32bit boundary) and maps over where memory may be so we want the BIOS to map that memory elsewhere.

(disclaimer: I work for AMD in the CPU architecture team) Remapping in the BIOS is possible with all current AMD parts: -- First off, some BIOSes have bugs, so test it out before just using it! -- If this is a pre-rev-E part (C0 or CG), then you can perform "Software" remapping, but it slows down memory access a bit on Opteron systems. -- If this is a Rev E or later part, then you can perform "Hardware" remapping as well, which has no performance cost. I'd recommend using the "Hardware" method if you have a Rev E or later Opteron part. ~~~~~~~ Thank you for your responses. I used 'Hardware' for the Memwhole remapping. What anomalies might I expect if using 'Hardware' is not the right choice? Again, many thanks. ~James --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-amd64+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-amd64+help@opensuse.org