trouble with K8T Master2-FAR (dual Opteron)

[Joe Fenton]

>Satoshi Sato wrote:
>
>Hello,
>
>I'm trying to install FreeBSD/amd64 to dual Opteron machine.
>
>  M/B: MSI K8T Master2-FAR
>  CPU: AMD Opteron 240 x 2
>  Mem: 512MB x 2 ( in Slot 1 and 3, Single channel)
>
>  
>

Is there some reason you run your memory in single
channel mode as opposed to dual channel? You are
needlessly cutting your memory throughput in half.
CPU 1 does NOT control slots 1 and 2 while CPU 2
controlls slots 2 and 3. CPU 1 controls ALL the
memory, and CPU 2 accesses the memory through
the HyperTransport link. Unless your memory sticks
are badly mismatched, you should have them in slot 1
and 2 for dual channel access. That is how I have my
MSI Master2-FAR setup and it runs just peachy.