which memory slots to fill on Tyan Thunder K8WE

Hi -

I'm trying to decide if I need to trade my four 512MB chips for two 1 gig
chips.

I have a total of:
four 512MB chips and
two 1 GB chips
* All this RAM is DDR400 ECC/REG

Both processor slots filled with Opteron 252's.
Wanting to enable NUMA on this MB.

Would either of the following configs work? If so, which is better?

CPU1 mem slots: put both 1 gig chips here
CPU 2 mem slots: put all the 512MB chips here

- OR -

CPU1 mem slots: put one 1 gig chip and two 512 MB chips here
CPU 2 mem slots: put one 1 gig chip and two 512 MB chips here

Thanks for the advice!
--
Scotter

To answer my own question
This motherboard is VERY RAM flexible!
So far this config worked and even with NUMA:

> CPU1 mem slots: put both 1 gig chips here
> CPU 2 mem slots: put all four 512MB chips here

Didn't try the 3-chips-per-slot idea.

Oh and if you want to turn on NUMA in XP-32-Pro-SP2, turn OFF RAM
Interleaving in BIOS and put /PAE in boot.ini.
That's all I had to do and voila! 11MB/sec in Sandra Sisoft benchmark.

--
Scotter


"Scotter" <spam.RemoveThis@spam.com> wrote in message
news:NEywf.33037$g_6.12941@tornado.texas.rr.com...
> Hi -
>
> I'm trying to decide if I need to trade my four 512MB chips for two 1 gig
> chips.
>
> I have a total of:
> four 512MB chips and
> two 1 GB chips
> * All this RAM is DDR400 ECC/REG
>
> Both processor slots filled with Opteron 252's.
> Wanting to enable NUMA on this MB.
>
> Would either of the following configs work? If so, which is better?
>
> CPU1 mem slots: put both 1 gig chips here
> CPU 2 mem slots: put all the 512MB chips here
>
> - OR -
>
> CPU1 mem slots: put one 1 gig chip and two 512 MB chips here
> CPU 2 mem slots: put one 1 gig chip and two 512 MB chips here
>
> Thanks for the advice!
> --
> Scotter
>
>
>