[FUD] " Nehalem only supports DDR3 800 or 1066 "

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09-02-2008, 08:23 AM
Blacky

[FUD] " Nehalem only supports DDR3 800 or 1066 "

Quote:

We were surprised to see that the Bloomfield generation of CPUs will officially support DDR3 800 or 1066. Even the extreme edition 3.2GHz Core i7 officially only supports DDR3 1066 and not faster. There won't even be an official support for DDR3 1333 not to mention 1600 or faster.

Fudzilla has already mentioned the fact that for some reason you need to run memory CPU voltage synchronously which might be an overclocker's worst nightmare. At this current stage you cannot go over 1.65V and some memories such as DDR3 1600 or DDR3 2000 might need a bit more than that. With more than 1.65 you will kill any current Nehalem CPU.

Bloomfield Nehalem doesn’t run with DDR2 memory as the memory controller is inside of a CPU and so far we are not aware of any plans to release Bloomfield Core i7 CPU that would support DDR2.

DDR3 1066 doesn’t really sound like a state of the art speed but this is the reality.

Source: Fudzilla

Waggggghhhh, I know, I know, it' s Fud, but if it true what do you guys think?

In my opinion this make “almost as good as having a second graphics card” - Intel statement more BS

/discuss
09-02-2008, 08:26 AM
jmke

solely depends on how much Nehalem relies on memory speed vs timings; Core 2 Duo doesn't need high speed or low latency memory to perform well; buying expensive memory only serves for OCing :)
09-02-2008, 08:34 AM
OBR

Officialy are supported 1066+1333 DDR3. On Asus board you can set higher frequency ... not only 1066, 1333. It is depends on board manufacturer ... Gigabyte has option 1900MHz in BIOS.
09-02-2008, 08:37 AM
Charles Wirth

Confirming Gigabyte board supports DDR3-1900
09-02-2008, 08:37 AM
WRC

i'm sure mobo vendors will allow further overclocking of memory, and Dr. Who already explained that there are separate voltage adjustments for the cpu and memory, anyways stock DDR3 memory modules are already at 1.5 volts and the nehalem processors only needs 1.2 to 1.3 volts max so there's no way they are on the same voltage line. Fudzilla is full of it again :rolleyes:
09-02-2008, 08:42 AM
Shintai

Lesson 1:

Never trust FUD and Theinq.

Lesson 2:

Repeat lesson 1.
09-02-2008, 08:53 AM
Blacky

Quote:

Originally Posted by FUGGER

Confirming Gigabyte board supports DDR3-1900

Nice to hear :up:

Quote:

Originally Posted by Shintai

Lesson 1:

Never trust FUD and Theinq.

Lesson 2:

Repeat lesson 1.

Quote:

I know, I know, it' s Fud, but if it true what do you guys think?
09-02-2008, 09:04 AM
CyberDruid

Why does anyone read/post/believe FUD?
09-02-2008, 09:06 AM
bingo13

My latest board from Taiwan - 800,1066,1333,1600,1866,2000 and variations in-between depending on QPI settings. Official support is 800/1066 at this time, would not be surprised if the XE gets a 1333 blessing at some point. Everything else is "overclocking" in Intel's own terminology but it certainly does not mean that the boards cannot offer support above 1066. However, triple channel 1066 at 5-4-3-15 matches up very well with the XE. ;)
09-02-2008, 09:09 AM
bowman

Oh wait, those specs that have been reiterated by tens of sources more reliable than the FUD, where it explicitly states 1333 and 1600 (out of the box, of course OCing is possible)?

That site is a joke. I'm not going to grant Fuad the pleasure of upping his hit count by clicking the link.
09-02-2008, 09:10 AM
eva2000

Quote:

Originally Posted by bingo13

My latest board from Taiwan - 800,1066,1333,1600,1866,2000 and variations in-between depending on QPI settings. Official support is 800/1066 at this time, would not be surprised if the XE gets a 1333 blessing at some point. Everything else is "overclocking" in Intel's own terminology but it certainly does not mean that the boards cannot offer support above 1066. However, triple channel 1066 at 5-4-3-15 matches up very well with the XE. ;)

oooooooooh sweet... thanks in advance for all your hard work Gary :D
09-02-2008, 09:35 AM
Blauhung

yup, as always, Intel will only validate what the system is going to run at for stock settings. That's as far as official support goes. That in no way means faster is cut off or restricted, just that it hasn't gone through the extremely rigorus validation process that the stock speeds have gone through.
09-02-2008, 09:47 AM
Donnie27

Quote:

Originally Posted by Blauhung

yup, as always, Intel will only validate what the system is going to run at for stock settings. That's as far as official support goes. That in no way means faster is cut off or restricted, just that it hasn't gone through the extremely rigorus validation process that the stock speeds have gone through.

But isn't 1333 stock?
09-02-2008, 09:51 AM
OBR

Quote:

Originally Posted by Blauhung

yup, as always, Intel will only validate what the system is going to run at for stock settings. That's as far as official support goes. That in no way means faster is cut off or restricted, just that it hasn't gone through the extremely rigorus validation process that the stock speeds have gone through.

exactly, today we have official support DDR2-800, and you can use DDR2-1250 too ...
09-02-2008, 10:07 AM
Hornet331

Quote:

Originally Posted by Donnie27

But isn't 1333 stock?

maybe only for the XE, just like the QX9770 has fsb 400 and the QX9650 only has 333.
09-02-2008, 10:36 AM
Bellisimo

Does anybody remember all the K8's that got killed because memory voltage was too excessive?

maybe this might happen again
09-02-2008, 10:39 AM
Chewbenator

Don't a lot of motherboards that are out right now say DDR2-667 but easily run with 1066 with overclocking? Even if they did put 800 or 1066 on the box nobody here should worry because we'd run at higher speeds with overclocking anyway right? I'm still not absolutely sure whats up with which motherboards/chipsets support overclocking with Nehelam.
09-02-2008, 10:43 AM
ether.real

What strikes me as odd is the supposed link between RAM voltage and CPU voltage. That makes no sense to me.
09-02-2008, 10:48 AM
[XC] gomeler

Quote:

Originally Posted by ether.real

What strikes me as odd is the supposed link between RAM voltage and CPU voltage. That makes no sense to me.

The MCH is on the die and therefore is constructed on a 45nm scale. Isn't the vdimm the voltage used to communicate between the MCH and the modules? If so then pumping 2.1vdimm through a 45nm MCH = deadly like we are currently doing with DDR3 sticks to hit high speeds with tight timings.
09-02-2008, 10:51 AM
ether.real

Quote:

Originally Posted by [XC] gomeler

The MCH is on the die and therefore is constructed on a 45nm scale. Isn't the vdimm the voltage used to communicate between the MCH and the modules? If so then pumping 2.1vdimm through a 45nm MCH = deadly like we are currently doing with DDR3 sticks to hit high speeds with tight timings.

Is it? It was always my understanding that vdimm was direct to the module and MCH was separate...either via NB volts on non-IMC CPUs and CPU voltage on IMC CPUs.
09-02-2008, 11:01 AM
Astratuner

I've got a question that has got something to do with this news.

Why do overclockers always buy the most expensive ram ? thus meaning the fasted is most cases?

Is it so they have space for the oc and so the memory isn't the limiting factor for the oc?
09-02-2008, 11:06 AM
[XC] gomeler

Quote:

Originally Posted by ether.real

Is it? It was always my understanding that vdimm was direct to the module and MCH was separate...either via NB volts on non-IMC CPUs and CPU voltage on IMC CPUs.

Any experts on this? I figured vMCH and vDIMM were somehow tied together judging from the dead Phenoms and K8s we've had in the past due to high vDIMM and low vCORE :shrug:

Quote:

Originally Posted by Astratuner

I've got a question that has got something to do with this news.

Why do overclockers always buy the most expensive ram ? thus meaning the fasted is most cases?

Is it so they have space for the oc and so the memory isn't the limiting factor for the oc?

We don't always buy the most expensive but we do buy the kits that'll either hit the high frequencies we need or run the tight timings we desire. With a QX9650 at 450FSB you could either run DDR3-1350 or DDR3-1800. DDR3-1800 will provide more available bandwidth while still being possible with CAS7 and PL7 resulting in gobs of bandwidth versus DDR3-1350 with CAS5 :up:
09-02-2008, 11:07 AM
Astratuner

So it's all about bandwith then?
09-02-2008, 11:08 AM
Charles Wirth

The highest binned ram usually yields the best result and those modules have a high cost.

Its not that fud is wrong, they are going on known information and what is officially supported vs what it can really do.
09-02-2008, 11:20 AM
jmke

Quote:

Originally Posted by bingo13

My latest board from Taiwan - 800,1066,1333,1600,1866,2000 and variations in-between depending on QPI settings. Official support is 800/1066 at this time, would not be surprised if the XE gets a 1333 blessing at some point. Everything else is "overclocking" in Intel's own terminology but it certainly does not mean that the boards cannot offer support above 1066. However, triple channel 1066 at 5-4-3-15 matches up very well with the XE. ;)

Fudzilla's article is not FUD at all. those into overclocking don't care much about what is officially allowed; but for those retail systems which will compare performance with what's allowed, 1066 is the max.
09-02-2008, 11:42 AM
gosh

Quote:

Originally Posted by Astratuner

So it's all about bandwith then?

If you are running a big database then you may need plenty of bandwidth. Low latency is more important.
09-02-2008, 12:24 PM
@@@@

So official support is 800mhz/1066mhz but it can support higher frequencies
Is it through Intel's XMP? I mean is it preset or user-defined?
with your motherboards what do you think is the most preferred DDR3 modules? I mean as how well it Overclock with the DDR3 and CPU + IMC +QP
Sorry for having so many questions just curious that's all and I tried to ask the question in a manner that is not covered by the NDA
09-02-2008, 01:34 PM
Blauhung

Quote:

Originally Posted by @@@@

So official support is 800mhz/1066mhz but it can support higher frequencies

yup

Is it through Intel's XMP? I mean is it preset or user-defined?

I believe both work

with your motherboards what do you think is the most preferred DDR3 modules? I mean as how well it Overclock with the DDR3 and CPU + IMC +QP
Sorry for having so many questions just curious that's all and I tried to ask the question in a manner that is not covered by the NDA

Right now it's looking like the best stuff to get would be around the 1333 mark with as low latencies as you can go (cas6-7). Bandwidth isn't really as much of an issue now with the 3 channel controller.

EDIT, actually, looks like Cas5 might almost be something to shoot for. OCZ looks like they have cas6 @ 1600
http://www.newegg.com/Product/Produc...82E16820227285
09-02-2008, 02:27 PM
doompc

Question: how is the memory clock set on Nehalem?
Is it by an multiplier over QPI base clock (ie 3x133 for DDR3-800, 4x133 for DDR3-1066 and so on) ?
09-03-2008, 07:36 AM
Bellisimo

really funny to see everyone panic it will not support 1333/1600.....
offcourse it will support that, but not officially

the only worrying story is about the volts
09-03-2008, 08:06 AM
bowman

Quote:

Originally Posted by doompc

Question: how is the memory clock set on Nehalem?
Is it by an multiplier over QPI base clock (ie 3x133 for DDR3-800, 4x133 for DDR3-1066 and so on) ?

Yes.
09-03-2008, 08:20 AM
BulldogPO

FUD can blow his balls, we have haer way too much false information from him.
09-03-2008, 08:22 AM
saveus222

Quote:

Originally Posted by CyberDruid

Why does anyone read/post/believe FUD?

lol coz sometimes they actually get onto the right thing.. biggg biggg humungous stress on sometimes.. :rofl:
09-03-2008, 08:46 AM
Tony

The question is vdimm may be seen by the CPU IMC which may be the limiting factor here. So if 1.65V is the official safe max then thats what Intel is saying you should not exceed. Now we may see 1600 easy with 1.65V, we may even see 1800 easy as the limit on DDR3 has been 5h1tty clocks and jitter more than what the ram will actually do. So with a board and IMC designed to have super low jitter etc we may see ram clocking a whole lot better all of a sudden.

If Vdimm is limited (safe Limit) to 1.65V I am sure we will see the new breed of low voltage DDR3 being used for higher speeds with voltages of around 1.5V for desktop.
09-03-2008, 08:55 AM
Nedjo

Quote:

Originally Posted by OBR

exactly, today we have official support DDR2-800, and you can use DDR2-1250 too ...

today we have official support for DDR2-1066 and sometime next year there'll be official spec for DDR3-1600
09-03-2008, 10:37 AM
Jimmer411

I wonder if nehalem will act like a64 where memory speed, latency and divider for the most part don't mean jack for performance. Only clockspeed > all.
09-05-2008, 03:51 PM
JumpingJack

Quote:

Originally Posted by Blacky

Source: Fudzilla

Waggggghhhh, I know, I know, it' s Fud, but if it true what do you guys think?

In my opinion this make “almost as good as having a second graphics card” - Intel statement more BS

/discuss

See this response:
http://www.xtremesystems.org/forums/...21&postcount=6

Fuad is not very technically saavy, in fact, he knows pretty much nothing.

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