http://support.asus.com/faq/faq.aspx?no=FFC7FB3A-68C0-6372-EE3B-D9013E...5D3&SLa
If you populate all 4 DIMM sockets, the board downclocks to 333 MHz by
default. I guess that Kingston didn't want to launch into a discussion of
this. The work-around is to manually set the memory timings back to DDR400.
(You may need to set the command rate to 2T, rather than the faster 1T.)
The web page above has a link to the support page for the mainboard, which
in term has a link to the memory QVL (qualified vendors list). That list
will tell what modules are verified to work if all 4 sockets are used, but
it won't say which ones can be clocked back to 400 MHz.
If you can add RAM that can tolerate an elevated voltage, you may do better
in getting back to 400 MHz. I have limited experience with that, but I've
had good luck with Corsair memory.
Return address scrambled. Replace nkbob with bobkn.
"Tom Del Rosso" <td_01 DeleteThis @att.net.invalid> wrote in message
news:A06Si.293$582.119@newsfe12.lga...
> This is what kinston says about the RAM limit.
>
> 2 GB using 400MHz DDR modules
> 4 GB using 333MHz or 266MHz DDR modules
>
> I have a 4400+ with a 200MHz FSB so I'm only looking to add 400MHz RAM,
> but
> what is Kingston saying here? Asus specs don't mention this. But why
> would
> Kingston not make RAM that can reach the limit?
>
>
> --
>
> Reply in group, but if emailing add another
> zero, and remove the last word.
>
>