memory question
 

Would buying 2*512 mb of corsair xms pc3200 cas 2 LL be a good choice for future minded setup (they're going into a p4 rig now but probably an athlon in two months) or are there other alternatives?
(CORSAIR TWINX Matched DDR 2 x 512MB 400Mhz PC3200 CAS2 HSP LOW Latency)
I need to buy more ram for my p4 farcry-setup, which I can run at 5:4 cas 2 2-2-6 if needed (it'll be about equivalent to my 233 mhz 1:1 at cas 3 3-3-7...), but I'd like to use that ram with the next setup too...

I thought AMD A64 is going to support DDR500 in the future, i don't know the specifics.

I think it's a safe buy. Most, if not all, P4E and A64 will run at 200fsb.

yeah, but on these memorysticks, will there still be headroom to overclock?
or is that unimportant with the amount of dividers on the a64 boards?
do you need high memspeeds on an a64? of just tight timings, I have no idea how those dividers and hypertransportbusses work...

Doesn't 64A run on ECC memory? If "my memory" serves me right, they do.

If you could get your hands on Apacer Infineon chip by you, I highly recommend them.

The A64 FX runs on registered memory
the A64 runs on unregistered memory

no need for ECC mem :)

I'll take socket 939 so I don't need registered ram...
would ocz 3500 eb meet my demands?
apparently (anandtech review) it'd be great with p4 and a64, go very high and perform just as good at cas 2.5 3-3-6 as a cas 2 2-2-5, and more so if you increase the speed, their review however is on a p4 setup
and they come in dualkits of 2*1024 mb which would be great.
I just need 1 gig+ of blazingly fast ram...

3500EB looks like a good solution yes.

TWINMOS TWINX Matched DDR 2 x 512MB 400Mhz PC3200
TWINMOS DDR 512MB 400Mhz PC3200 IN STOCK €100,20
CORSAIR DDR 512MB 400Mhz PC3200 ValueSelect €108,20
APACER DDR 512MB 400Mhz PC3200 €103,00

Which one of these? My guess is going to the store and checking the chips it comes with?

Anyone knows which chips the Corsair Valueselect comes with?

Where can one buy 3500EB OCZ?

I'd wanna know where you can get that 3500eb too...

http://www.hofline.com/catalog/default.php
has OCZ ram,

they'll have the 3500EB also I guess, as soon as it becomes available on the market.

god damn...
six months ago I bought 2*256 mb of pc3700 to run with my p4 and I always complained it would only run its 233 mhz stock setting at cas 3 3-3-7.

I just switched my ages old (about one year) pc3200 corsair from the workrig in the gamerig...
It boots at 233 cas 2 2-2-5 no probs...
crap
why the hell did I ever buy this pc3700 again?


another question...
with memory that can do cas 2 2-2-2-5 at 233, on an abit ic7max, can you turn that game accelerator on?
my pc3700 never allowed that...


and another thing... is 3.1 vdimm a danger in a well ventilated case (case temp never goes above 22 and there's 120 mms pushing cold air over the ram area)

i would say no, not realy, but i think it's not healthy to run that for a long time ( like a year )

One year ago Corsair PC3200 XMS was equipped with BH-6 and PC3500 with BH-5. No wonder it works better.

Whether 3.1vdimm is dangerous depends on which chips you are using. Winbond BH-5 / 6 seems not to mind 3.2vdimm for a very, very long time (+1 year). Other chips might break after weeks...

so, if I get it right, everybody is going to buy 2*512 mb modules now for current and future games... but there ain't any of those around that can do nice tight timings... on the other hand, lots of sites claim that cas 2 and 2.5 on an athy64 are equivalent, so that's out of the equation...and piotke is checking all the other timings elsewhere :)

testing is done, I just don't have any slow ram at home :)

well, are the differences substantial or minimal?

hold on to your panties, as usual :p
slow memory coming Piotke's way soon

To answer that, I have to use some very smart words...

I'm cheap.

we're talking about timing on an A64 platform (Nfoce3 150/250 or K8t800/K8t880)

:)

memory won't mind A64 or P4, will they?

it minds, mostely the chipset.

For example, where on most configs 2 2-2-5 is the fasted, on an Nforce2 platform 2-2-2-11 is the fastest..

There's a lot of mem that runs on a P4 that will not on an amd64.

What'd happened to JEDEC standard?

I used to make CHIPS, and I never ran production base on what the market needs (funny to say this) rather on the "yield factor".

The same reason Intel is making money and AMD is losing; high yield versus low yield factor. It is the same in making memory chips. Not many manufacturers but a lot of sorters; example Corsair buys the high end high yield production runs for it's high end "re-packaged" products.

If you look into the Taiwan Board makers' recommended memory; they focus on the markers or the repacker, i.e. Samsung, Micron, Infineon make chips; others are just buying and repacking business.

Besides, I thought latency is no longer the factor rather the bandwidth has become more the bottleneck. The Hyper Transport in A64 allows the increase of bandwidth as much as P4 800MHz dual channel did; as it stands fast timing has become a very minor issue. I may well be totally wrong.

you are:)

Hummm...

Using my own value system, I translate the chart to conclude approximately >20% better performance in games with tight timing, right?

This is not a small margin. I'd better gear up into the game world of today ..... way behind in this catagory.

I made the right decision to hang around with you guys.

on my A64 setup, the PC4200 1/1 was slower then PC3200/2-2-2-5 3/4.
so timing are still important.

I'd say more like 5% max. IMO timings are vastly overrated for the normal computer users but us hardware nuts can't seem to be happy with anything less than the best.

Well, I'm from the "old school". I justify everything with ROI (return of investmen). You are not talking "small" amount of money with the memory. I paid $84 for the pair of PC3200 Apacer which could be run at 520 Mhz; $64 of the 512 single stick PC2700 again Apacer at 200Mhz.

There is an old saying " you pay a high price for being EXTREME".

which would be better for amd socket 939 setup?

OCZ Platinum PC-3200 1024MB Timings 2-2-3-5
or
OCZ EB Platinum PC3500DDR 1024MB Kit Timings 2.5-3- 2-8
or
CORSAIR PC3200 CAS2 HSP LL 1024 mb

...

The OCZ seems to be equipped with ch-5, that's a pretty safe buy. Most ch-5 512mb sticks do 215-225 on low voltage and aggresive timings if i'm not mistaken.

OCZ's EB stuff seems killer too.

They all seem a killer buy to be honest. ;)