2-3-2-6 vs. 2-2-2-6 ?

[Thomas Andersson]

Hi!

I've tried to get and answer or find information about this, but without
success so far.
It's quite simple, I'm about to chose ram for my A7N8X-Deluxe (w. Barton
2500 to be run at 200Mhz).
I've decided on Kingston Hyper-X, just not what sticks to use yet.
I will get 2*512MB (PC3200, to be run at 100%)

My options are these:

CAS Latency 2 (2-2-2-6-1T) or
CAS Latency 2 (2-3-2-6-1T)

The price difference is $25/stick so it makes quite a difference in price.
What I wonder is, will the slightly more agressive timing of the more
expensive stick realy be worth that extra money with the settings described
above?
How big (if any measureable at all) performance difference can one expect
between these two? (the slower one matches Corsairs XMS LL dims exactly on
teh speccs).

Please comment/suggest

Best Wishes
Thomas

 

[BNR]

What chipset is that motherboard?

http://www.kingston.com/support/faqs/memory/issue_12.asp

 

[Thomas Andersson]

What chipset is that motherboard?

http://www.kingston.com/support/faqs/memory/issue_12.asp

nForce2 Ultra 400
I'll check that link out.
Thanks

Best Wishes
Thomas

 

[QED, eh ?]

If you're spending another $50, you might aswell go for pc3700 and max out
your o/cability.

 

[bp]

I've decided on Kingston Hyper-X, just not what sticks to use yet.
I will get 2*512MB (PC3200, to be run at 100%)

Might want to reconsider the Kingston HX. I bought a 512 3400 stick
and it went bad the next day. The replacement (nor the original one)
wouldn't do a mhz past 400fsb without failing even though it should do
434 (or something like that) FSB. I have a stick of samsung 3200 that
does better than the KingstonHX 3400 RAM.

 

[Thomas Andersson]

If you're spending another $50, you might aswell go for pc3700 and
max out your o/cability.

I know that, but The faster of these two is already on the outher limit and
I'm looking to save, another +$50 is definitely out of the question I'm
afraid...
Now the question still is (as originally asked), is the difference between
2226 and 2326 woth the rise of $50 while all other remains the same.

Best Wishes
Thomas

 

[Thomas Andersson]

Might want to reconsider the Kingston HX. I bought a 512 3400 stick
and it went bad the next day. The replacement (nor the original one)
wouldn't do a mhz past 400fsb without failing even though it should do
434 (or something like that) FSB. I have a stick of samsung 3200 that
does better than the KingstonHX 3400 RAM.

Not just bad luck? the reviews I've seen have given it excellent marks. IT
won't go quite as far as some others, but will go further will retaining
tighter timings from what I've seen (And I'm unlikely to OC it far beyond
200Mhz).
I'm currently googling and reading anything related to these modules that I
can find, so far nothing bad.

Best Wishes
Thomas

 

[Ross Tempany]

There is a recent webpage that discusses each parameter and it's
relative effect on the memory thruput (not the kingston page). It
was linked off of one of the major hardware sites, didn't save a link
tho.

rms

http://www.corsairmicro.com/main/tech.htm

Is good for CAS and general timing stuff.

 

[The General]

The performance difference is virtually unmeasureable. Save your
money. See my post of a few minutes ago in the Asus group for details.

ditto that--timings are meaningless to applications--the price diff is
only to separate people from their cash. I am constantly amazed at the
foolishness of otherwise knowledgeable computer users when they insist on
high timing ram. Real sucker moves as any test would show--but then such
test are never , ever found on the major hardware sites. Why not remains
another mystery.

What matters greatly tho is the speed of the module--as it increases , so
does performance in a few specialized areas , esp. games (fps ) and
encoding/decoding.

 

[Doug G.]

Might want to reconsider the Kingston HX. I bought a 512 3400 stick
and it went bad the next day. The replacement (nor the original one)
wouldn't do a mhz past 400fsb without failing even though it should do
434 (or something like that) FSB. I have a stick of samsung 3200 that
does better than the KingstonHX 3400 RAM.

I have two 512mg strips of Kingston Hyper-X PC2700 on my Abit KD7 Raid
that will run with the memory timings listed below up to 185MHz or 370
before it starts to fall down, and even that may have more to do with
the board not having a 6 divider. Not bad IMHO.

voltage 2.65v

DRAM Timing Manual
DRAM CAS Latency 2
Bank Interleave 4 Bank
Precharge to Active(Trp) 2T
Active to Precharge(Tras) 6T
Active to CMD(Tred) 2T
DRAM Burst 4
DRAM Queue Depth 4 Level
DRAM Access 3T
Enhance DRAM Performance Enabled
DRAM Command Rate 1T Command
Write Recovery Time 2T
DRAM tWTR 1T

Doug

 

[Thomas Andersson]

How about the 1Gig of memory? That's way overkill for many if not
most applications. Do you really need that much? Maybe there's a
chance to save some bucks here too.

I know, but I only have machine so it doubles as work/game/server machine. I
run ftp, mail, web, database, comunity (HotLine for snow, son KDX) servers
on it and I'm using XP (mem hungry) so already today I'm making good use of
the 512 I have and want to make room for additional expansions as needed. I
feel to that 1Gb might be a tad bit to much, but then again, 512 is well
used and I don't know how cost/performance would be affected by going down
to 3*256 instead.

Best Wishes
Thomas

 

[Frank Weston]

Read this: http://www.lostcircuits.com/memory/ddr2/3.shtml

The message seems to be that tRCD is a limiting factor for overclocking and
probably worth spending the extra bucks. The difference could be as much as
a 5 to 10% increase in memory bandwidth. If you really want to save $$, ask
yourself if you really need 1 Gb of memory.

 

[bp]

Not just bad luck? the reviews I've seen have given it excellent marks. IT
won't go quite as far as some others, but will go further will retaining
tighter timings from what I've seen (And I'm unlikely to OC it far beyond
200Mhz).
I'm currently googling and reading anything related to these modules that I
can find, so far nothing bad.

I know ! That's why I bought it but it sure isn't working well. Maybe
it would do better not using it in a duel channel mode.

 

[bp]

Well, as I've stated I'm not going to overclock the ram, I'm going to up the
processor to 200MHz and only use multippler after that, so ram will stay at
stock speed/settings. What I wonderwed was what/if there would be a
difference in that case.

That's what I do but my memory still fails.

 

[Frank Weston]

Since you put it that way, if you're looking for real world performance and
don't care about overclocking bragging rights, then the slight increase in
memory bandwidth that might be attainable is probably not worth the price.

How about the 1Gig of memory? That's way overkill for many if not most
applications. Do you really need that much? Maybe there's a chance to save
some bucks here too.

 

[rstlne]

Toms Hardware went over it, but I cant find the link, You'll find most of
the memory they listed is about the same, It makes the CORSAIR look
overpriced, but it did win every slot on speed, reliability, ect
I have even heard where this "Kingston" memory isnt good for the a7n8x
boards
but that's just what I heard..

 

[BNR]

I don't think 1G is enough RAM. I'd like 4 more slots on my i875 for 8G,
instead of all this garbage the motherboard company throws on it.

 

[Ed Light]

I got 1 gig when I found that Trainz was using hundreds of megs of swap
file. Runs better now.

 

[Overlord]

Actually my Corsair TwinX 3200 LL is running 2-2-2-5 at the moment.
It's 23 x 147. Had the FSB higher but this P4G8X jerks you around and
sets the timing to 3-3-3-7 if the FSB goes higher than 141<?>.
Doesn't even tell you, just resets the timings and lies about it.
Had to flash the hacked bios to force it to actually use the timings I
specified in the BIOS, and haven't had time to push the speed much
yet, or test.
Actually... as I think about it... the stock bios has options to set
the timings to 1.5-2-2-5. Hmmm.......

Hi!

I've tried to get and answer or find information about this, but without
success so far.
It's quite simple, I'm about to chose ram for my A7N8X-Deluxe (w. Barton
2500 to be run at 200Mhz).
I've decided on Kingston Hyper-X, just not what sticks to use yet.
I will get 2*512MB (PC3200, to be run at 100%)

My options are these:

CAS Latency 2 (2-2-2-6-1T) or
CAS Latency 2 (2-3-2-6-1T)

The price difference is $25/stick so it makes quite a difference in price.
What I wonder is, will the slightly more agressive timing of the more
expensive stick realy be worth that extra money with the settings described
above?
How big (if any measureable at all) performance difference can one expect
between these two? (the slower one matches Corsairs XMS LL dims exactly on
teh speccs).

Please comment/suggest

Best Wishes
Thomas

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