P4C800 E-Deluxe RAM types and choices???

  • Thread starter Thread starter MT
  • Start date Start date
M

MT

I'm considering building a new system around the Asus P4C800 E Deluxe but
with so many different types of RAM around I'm a bit confused. What is the
most fastest and stable memory I can use in this board to give me at least
1G of RAM, and do I need one 1024MB stick or two 512MB sticks? Below are
some of the memory types I'm faced with. What should I choose for maximum
performance? Thanks!

Matt
----------------------------
256MB 2100
256MB PC2700
256MB PC3200
256MB 3200 Corsair
256MB 3200 Kingmax
256MB 3200 Kingston
256MB 2700 CL2 Corsair
256MB 3200 CL2 Corsair
512MB 2700 Kingston
512MB 3200 Kingmax
512MB 3200 Kingston
512MB 3500 Kingmax
512MB 2700 CL2 Corsair
512MB 3200 CL2 Corsair
512MB 3200 CL2 Corsair/
512MB 3200 LL Corsair
512MB 3200 LL Corsair/Twin
512MB 3500 CL2 Corsair
512MB 3700 CL3 Corsair
1024MB 3200 CL2 Cor/Twin
1024MB 3200 LL Cor/Twin
1024MB 4000Pro Corsair/
128/256MB PC800 Samsu
 
Matt,

2x Crucial / Micron 512Mb. These are one of the few rated to run 4x in
this motherboard so when 1GB isn't enough anymore...

They are also on the DDR400 memory QVL in the manual and on the web
site. Check it out.

HTH,

Steve
 
"MT" said:
I'm considering building a new system around the Asus P4C800 E Deluxe but
with so many different types of RAM around I'm a bit confused. What is the
most fastest and stable memory I can use in this board to give me at least
1G of RAM, and do I need one 1024MB stick or two 512MB sticks? Below are
some of the memory types I'm faced with. What should I choose for maximum
performance? Thanks!

Matt
----------------------------
256MB 2100
256MB PC2700
256MB PC3200
256MB 3200 Corsair
256MB 3200 Kingmax
256MB 3200 Kingston
256MB 2700 CL2 Corsair
256MB 3200 CL2 Corsair
512MB 2700 Kingston
512MB 3200 Kingmax
512MB 3200 Kingston
512MB 3500 Kingmax
512MB 2700 CL2 Corsair
512MB 3200 CL2 Corsair
512MB 3200 CL2 Corsair/
512MB 3200 LL Corsair
512MB 3200 LL Corsair/Twin
512MB 3500 CL2 Corsair
512MB 3700 CL3 Corsair
1024MB 3200 CL2 Cor/Twin
1024MB 3200 LL Cor/Twin
1024MB 4000Pro Corsair/
128/256MB PC800 Samsu
Click to expand...

The P4C800-E is a dual channel board. Place one 512MB stick on each
channel. Using two matching sticks of double sided memory gives better
performance than using a single larger stick. The only thing that would
be a tiny percentage faster is running 4 x 256MB _double sided_ sticks,
as this increases the number of banks that can be used for dynamic
addressing. Considering the potential impact this has on stability and
maximum bus speed, and since you are happy with 1GB of memory, I would
go with 2 x 512MB double sided, as it will be easier to make stable,
or to overclock, as the case may be.

As for all the speed grades and CAS (CLx) options, many of these
will be of use to someone who is overclocking. If overclocking is
your objective, then you'll need to read up a bit on the subject, in
order to make the best decision of cost versus benefit. The CPU to
memory bus ratio has a couple of values, like 1:1 or 5:4 and so on.
The 5:4 ratio allows the FSB to go to 4x250MHz=1000MHz quad pumped,
while the memory stays at the standard 2x200MHz=DDR400 rate. If you
used the 1:1 ratio, then you would need DDR500 (PC4000) memory, which
is expensive. There would be a slight performance difference between the
two, but not enough to justify the cost except in the most extreme
circumstances. This is because for many applications, a 10% improvement
in memory bandwidth might give 3% or less improvement in overall
application performance, so the pursuit of such a target is only
for the rich or for the business expense account.

To say more about overclocking, we would need to know whether you've
already bought a processor, and whether it is a 2.4GHz/800/512KB
suitable for overclocking, or a 3.2GHz/800/512KB which is already
running near its limits (about 3.6GHz).

Intel memory guide for 875 (or 865) systems:
ftp://download.intel.com/design/chipsets/applnots/25273001.pdf

HTH,
Paul
 
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