More than 4 GBytes RAM on Socket939 system?

[David O'Brien]

On Wed, Feb 23, 2005 at 10:21:31AM +0100, O. Hartmann wrote:
> Will it be possible to address more than 4GBytes of RAM with the above
> mentioned board (nVidia nForce4-SLI chipset)?

Yes.  If you can install >4GB RAM, the CPU+motherboard will use it.

> The limitations are settled in the chip core, I think.

No the limitation is with the CPU, which has 40 physical address lines.
So you use 2^40 bytes of RAM.

> AMD64 processores only address 4 memory slots and can not address
> 128MBit memory chips,

What is a 128 MBit chip?

> But what is about 2GB modules as I mentioned above?

See the recomendations for your motherboard.  The motherboard+CPU can use
2GB modules, but some aren't made well and aren't fully to JEDEC spec.
So do some research to find good 2GB DIMM's.

-- 
-- David  (obrien at FreeBSD.org)