4gb (4 memory sticks) at 400Mhz on socket 939 MB

[Mohamad Al-Saqer]

Is it possible to find an AMD 64 socket 939 motherboard which supports 4 
memory sticks of 4GB to run at max speed 400MHz? From some available MB 
manuals the speed is either downgraded to 333MHz when 4 mem sticks are used 
or there is no mention of the issue at all.

>From my search on google, some blame it on limitation of the motherboard 
chipset. Others blame it on processors prior to the E revision. Nothing on 
the net I came across would be a clear answer.

I would suspect that tyan K8E (and K8E-SLI) doesn't have this limitation, does 
it? Because I saw at amd website some bechmarks on systems built on this 
motherboard with 4GB installed. However no say on wether these system were 
running at 400MHz FSB or less.

I appreciate help and any clarification.