P4C800E - DDR400 2Mb RAM (4 memory modules)

[Steve Sr.]

I know there has been some discussion on which memory modules are
qualified to run 4x in dual channel Asus Motherboards.

I recently bought 2 Crucial CT6464Z40B 512Mb modules for my new
P4C800E motherboard. Even though these Crucial modules aren't on
either of the Asus QVLs for DDR 400 RAM I decided to gamble on them
since the chips would be Micron and these might be the same ones
listed on the QVL.

When I received my modules I noticed that they had both a Crucial and
Micron part numbers on them. The Micron module part number
(MT16VDDT6464AG-40BC) matched the one on the Asus QVL. The individual
Chip number (46V32M8TG-5BC) also matched the Asus QVL.

So it looks like thes modules have been qualified by Asus to run 4x in
Asus dual channel motherboards. I only bought a pair of modules so I
can't actually test the theory but if you are looking for 2Mb of dual
channel RAM this would probably be a good place to start.

Good Luck,

Steve

P.S. Does anyone know if the Crucial modules are a "selected" version
of Micron's regular modules or just an extra label?

 

[Joachim Klein]

AFAIK, crucial is just a distribution section of Micron Technologies. I´ve 2
plenty old DDR266 sticks (officially CL 2.5). These babys run flawlessly
with up to 160 MHz DDR ("PC-320") CL2 in dual channel mode on my Asus P4G8X
(!!)
Excellent stuff, really...

Cya -

Joachim