Archived from groups: alt.comp.periphs.mainboard.abit (
More info?)
I have Kingston HyperX3500 advertised as CAS2. This is open to
interpretation since it's CAS2 at PC3200 and CAS2.5 at PC 3500. I feel I was
mislead by kingston. I expected PC 3500 at CAS2 just like what is on the
damn label. And will run at 220Mhz at CAS2 with no problem at all. I
upgraded my Bios and notice that THE SPD settings changed for the ram.
Kinston and the booklet says 2-3-3-7 which is what I manually have it set
to. Anyways here's what SPD says to answer your suspicion. Noticed that the
new AI7 bios (16) incorrectly reads the ram as 2-3-3-8 for PC 3200
And and correctly reads it as 2.5-4-4-9 at PC 3500 But my bios does not have
9 as an option. which leave my chioces limited if I ever want faster ram
frequencies. But I'd rather have ram that is CAS2 than a few more mhz on the
fsb using ram that takes 33% longer to get the data to the processor which
results in system that is choked by high latency over priced ram.
CPU-Z version 1.21
Memory Modules Serial Presence Detect (SPD)
Module #1
General
Memory type DDR-SDRAM
Manufacturer (ID) Kingston (7F98000000000000)
Size 512 MBytes
Max bandwidth PC3500 (217 MHz)
Part number K
Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Timings table
Frequency (MHz) 200 217
CAS# 2.0 2.5
RAS# to CAS# delay 3 4
RAS# Precharge 3 4
TRAS# 8 9
Module #2
General
Memory type DDR-SDRAM
Manufacturer (ID) Kingston (7F98000000000000)
Size 512 MBytes
Max bandwidth PC3500 (217 MHz)
Part number K
Attributes
Number of banks 2
Data width 64 bits
Correction None
Registered no
Buffered no
Timings table
Frequency (MHz) 200 217
CAS# 2.0 2.5
RAS# to CAS# delay 3 4
RAS# Precharge 3 4
TRAS# 8 9
"Jim" <null@null.com> wrote in message news:whFbc.8845$zh.489@fed1read07...
> I have/like Kingston HyperX PC3200 myself, currently running PC3488
(218MHz)
> on my AI7 w/ P4 2.6C (800MHz), sync (1:1). No problems. Got it on promo
> from Kingston direct in Dec' 03, $176, model KHX3200AK/1G
>
(http://www.ec.kingston.com/ecom/configurator/PartsInfo.asp?ktcpartno=KHX320
> 0AK2/1G), but you can generally ignore the Kingston prices, unless
promo'd,
> their vastly overstated. It isn't the cheap generic stuff, but it's not
the
> insanely priced OCZ or Corsair XMS either. And there is a little
headroom,
> spec'd 2-3-2-6-1, but I run 2-3-2-5-1 just fine.
>
> If you monitor the Kingson direct site, you see these huge drops in price
> pop up from time to time, then go away in 3-4 days. Very unpredictable,
but
> when they occur, they're very sweet, no tax, no shipping, factory direct
(so
> no warranty issues). My PC3200 is now selling for AT LEAST $100 more on
> Pricegrabber!
>
> Example, the following was selling for $233 (shipped) only 3-4 days ago:
>
>
http://www.ec.kingston.com/shop/partsinfo.asp?promo=boost&ktcpartno=KHX4000K2/1G
>
> I was tempted to get it myself, so I could run 1:1 and increase my FBS a
> little more, but in the end, passed.
>
> In general, I think the better and more economical strategy (knowing you
> will underclock) is to find high-quality PC3200 that has a little
headroom,
> rather than PC3500 (or better) and underclock it. Almost all the memory
> above PC3200 is at least CAS 2.5, even CAS 3, with considerably looser
> timings. It only makes sense if you intend to use it to gain more FSB w/
> 1:1, otherwise, you're paying extra money for nothing. I'd be willing to
> bet that many of the PC3200 and PC3500 modules are IDENTICAL, simply
> marketed both ways to garner a few more of your hard earned dollars.
> Afterall, almost any decent PC3200 can probably run PC3500 by simply
> loosening the DRAM timings to match it! Heck, my PC3200 runs nearly
PC3500
> w/o changes to timings. Just doesn't make sense (to me). If the PC3500
was
> 2-3-2-5/6-1, perhaps I'd feel differently.
>
> Btw, many will recommend Crucial, and I like them myself, very stable,
> dependable, my only complaint w/ them is there CAS is usually 2.5 or 3,
even
> for PC3200 (at least last time I checked). I find this very
disappointing,
> maybe it will OC ok, maybe they're just being overly conservative, but
every
> time I review their specs, this stands out like a sore thumb. I feel like
> I'm driving my dad's oldsmobile when I buy from them (good ol' dependable,
> but not too exciting either).
>
> JMTC
>
> HTH
>
> Jim
>
>
> "Qwest News" <ram@teleport.nospm.com> wrote in message
> news:jvEbc.56$BP6.55250@news.uswest.net...
> > I am wondering if PC3500 dual channel ddr would be ok for running a
mobile
> > 2500+ Barton XP. I want to use it at the 3200+ speed but would like a
> little
> > "extra" for speed and stability sake.
> >
> > I am also told that PC3200 would suffice and I notice it is available in
> > CL=2 modules as opposed to the 2.5 which is all I can seem to find for
the
> > PC3500.
> >
> > Suggestions for some good quality (not terribly extreme) stuff
> > would be helpful.
> >
> > Thanks
> >
> > Ron
> >
> >
>
>
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