DDR2-1066 (PC2-8500)

Status
Not open for further replies.

RemusM

Active member
LIEUTENANT COLONEL
Joined
Nov 16, 2006
Messages
2,195
Because the entire MSI forum is full of topics related to DDR2-1066 issues.
As I said many times before, DDR2-1066 5-5-5-15 at 1.8V does not exist!
All of them are overvolted DDR2-800 memory modules.
You need to manually set the timings and to raise the voltage to 2.1-2.3V in order to have a chance
to make them run above 1000MHz.
But be aware: that doesn't guarantee your system stability!
Now let's take a look in Crucial's garden:
http://necromanthus.com/Images/Crucial_DDR2.jpg
Those are Crucial's prices (june 2008).
The first one is a real DDR2-1066 memory module (7-7-7-21 at 1.8V).
Now take a guess: why the "loser" (CAS =7) without fancy heat spreader, LEDs and other toys
is more expensive than Ballistix and Ballistix Tracer?
The answer is simple enough: because it's the best one and is using real DDR2-1066 chips.
On the top of that, using that "loser" with a heat spreader and a voltage of 2.1-2.3V you can reach 1333MHz!
A piece of advice for all: pay attention when you buy DDR2 modules!
Keep in mind these rules (they have nothing to do with JEDEC):
DDR - 2.5V
DDR2 - 1.8V
DDR3 - 1.5V
Anything above that means overclocking!
Even if you're an overclocker, you don't have to buy already overclocked components.

cheers
 

Frankenputer

New member
GENERAL OF THE ARMY
Joined
Apr 16, 2004
Messages
9,815
RemusM,

1066 for DDR2 has been recently added to the JEDEC standard: http://www.jedec.org/download/search/JESD208.pdf

As a Caveat, most RAM sold as 1066 DDR2 are exactly as RemusM has stated,  an overclock rating for DDR2 800 RAM. The 1066 value is either RAM that has EPP settings for 1066 or may not have the profile but is certified to overclock to 1066.  Actual DDR2 at a JEDEC standard with an SPD profile of 1066 is rare and most likely RAM rated at 1066 is as stated earlier, overclocked DDR2 800.
 

RemusM

Active member
LIEUTENANT COLONEL
Joined
Nov 16, 2006
Messages
2,195
Frankenputer said:
1066 for DDR2 has been recently added to the JEDEC standard: http://www.jedec.org/download/search/JESD208.pdf
https://forum-en.msi.com/index.php?topic=117830.msg888284#msg888284

cheers
 

Frankenputer

New member
GENERAL OF THE ARMY
Joined
Apr 16, 2004
Messages
9,815
True, I didn't read your whole post, oops. Somehow I got it in my head you were saying that DDR2 1066 was not a JEDEC standard. Guess I needed more than 4 hours sleep last night.
 

youeffsee

New member
FIRST LIEUTENANT
Joined
Mar 23, 2008
Messages
280
good thread

I was unaware that there are REAL DDR2-1066 modules...I thought all 1066 were just overvolted DDR2-800

now I have a question from this..

if I was to get those real 1066 crucials,would they work with my board as the P35 neo2 supports dual channel, DDR2 667/800/1066 (OC)[/color]

 

Del UK

New member
MAJOR GENERAL
Joined
Jan 8, 2004
Messages
3,759
:emot-tip-wink: Remus.

@youeffsee, what do you intended to do? Set a benchmark record or day to day this? My advice is see, what the your current systems are when OCing and is memory the bottleneck?
 

youeffsee

New member
FIRST LIEUTENANT
Joined
Mar 23, 2008
Messages
280
I most likely wouldn't get those RAM

its just a question out of curiosity...as I'm sure it will pop up sometime  :-P)

better way to say it i guess is...

would those real DDR2-1066 run on a board that only supports 1066 by OC?
 

RemusM

Active member
LIEUTENANT COLONEL
Joined
Nov 16, 2006
Messages
2,195
Something more.
Talking about overcloked & overvolted DDR2-800 memory modules, there're two methods to do it:
1) faster access (800MHz 4-4-4-12 at 2.1-2.3V)
2) increased speed (933-1066MHz 5-5-5-15 at 2.1-2.3V).
Now the benchmarks in case of normal/overclocked DDR2-800:

PCMark05 - Memory
6016 - 800MHz / 5-5-5-15 at 1.8V
6091 - 800MHz / 4-4-4-12 at 2.1V
6259 - 1066MHz / 5-5-5-15 at 2.1V

Sandra 2007 - Memory Bandwidth
5757 - 800MHz / 5-5-5-15 at 1.8V
5821 - 800MHz / 4-4-4-12 at 2.1V
6112 - 1066MHz / 5-5-5-15 at 2.1V

As you can see, DDR2-800 CAS = 4 at 2.1V is more like a joke (overclocking for almost nothing).

cheers
 

Del UK

New member
MAJOR GENERAL
Joined
Jan 8, 2004
Messages
3,759
RemusM said:
Something more.
Talking about overcloked & overvolted DDR2-800 memory modules, there're two methods to do it:
1) faster access (800MHz 4-4-4-12 at 2.1-2.3V)
2) increased speed (933-1066MHz 5-5-5-15 at 2.1-2.3V).
Now the benchmarks in case of normal/overclocked DDR2-800:

PCMark05 - Memory
6016 - 800MHz / 5-5-5-15 at 1.8V
6091 - 800MHz / 4-4-4-12 at 2.1V
6259 - 1066MHz / 5-5-5-15 at 2.1V

Sandra 2007 - Memory Bandwidth
5757 - 800MHz / 5-5-5-15 at 1.8V
5821 - 800MHz / 4-4-4-12 at 2.1V
6112 - 1066MHz / 5-5-5-15 at 2.1V

As you can see, DDR2-800 CAS = 4 at 2.1V is more like a joke (overclocking for almost nothing).

cheers
And people laugh, when I have stayed with CL5 for OC work....... :rolleyes_anim:


Nice testing Remus :emot-tip-wink:
 

RemusM

Active member
LIEUTENANT COLONEL
Joined
Nov 16, 2006
Messages
2,195
Del UK said:
And people laugh, when I have stayed with CL5 for OC work....... :rolleyes_anim:

Nice testing Remus :emot-tip-wink:
Yes Del,

An overvolted DDR2-800 running at 800MHz with 4-4-4-12 @ 2.1V is about 1-2% faster than DDR2-800 5-5-5-15 @ 1.8V
An overvolted DDR2-800 running at 1066MHz with 5-5-5-15 @ 2.1V is about 4-6% faster than DDR2-800 5-5-5-15 @ 1.8V
Many people (overclockers) do not understand that on Intel based mainboards the DDR2/DDR3 timings are NOT really important.
In most of the cases, tight timings means 2 cents performance boost and many troubles (instability, heat, shorter lifetime, damaged components).
In other words, overclocking for nothing except troubles.

cheers
 

OKIGiveIn

New member
SERGEANT
Joined
Jul 1, 2008
Messages
40
Here in Australia, even the major online retailers obviously do not know what they are doing with these RAM's.

One of the biggest is selling Team Xtreem Dark 4GB (2x 2GB) DDR2-1066/PC2-8500 Memory Kit, 6-6-6-18-2T, 1.8-2.0v. for Aus$86 (around US$60). That is around 1/2 the price of my current set of overclocked DDR2-800 Dominators.

These appear to be true 1066 RAM and they are a lot cheaper than the normal overclocked DDR2-800's (1066, 5-5-5-15, 2.2v) from the same company and brand.

I was just about to buy a set when the latest Beta finally resolved the 1066 memory issues between my 2 x 2Gb Dominators and P45 Platinum.
 

RemusM

Active member
LIEUTENANT COLONEL
Joined
Nov 16, 2006
Messages
2,195
[quote author=OKIGiveIn]
One of the biggest is selling Team Xtreem Dark 4GB (2x 2GB) DDR2-1066/PC2-8500 Memory Kit, 6-6-6-18-2T, 1.8-2.0v. for Aus$86 (around US$60). That is around 1/2 the price of my current set of overclocked DDR2-800 Dominators.[/quote]

You're talking about expensive heat spreaders, airflow fans, LEDs and other toys.

Now talking about Corsair, here are the NewEgg today (january 15th 2009) prices:
Corsair Dominator 2x2GB (TWIN2X4096-8500C5D) 5-5-5-15 at 2.1V  :  44 USD (30 USD Corsair rebate)
Corsair XMS2 2x2GB (TWIN2X4096-8500C7) 7-7-7-20 at 2.0V : 58 USD
note: Corsair has significant rebates (30 USD) for all their "factory overclocked" DDR2-800 memory modules.

However, the main problem with their DDR2-1066 CAS7 memory module is this one:
http://www.corsair.com/_datasheets/TWIN2X4096-8500C7.pdf
Tested at JEDEC standard latency settings (7-7-7-20) at 2.0V
SPD programmed at: JEDEC standard 6-6-6-18 values at 800MHz


For that reason, I recommend these modules: Kingston KVR1066D2N7K2/2G
http://www.newegg.com/Product/Product.aspx?Item=N82E16820134655
They're running with 7-7-7-20 at 1.8V.
Of course, they're much more expensive (74 USD for 2x1GB)

cheers
 

acare84

New member
PRIVATE E-2
Joined
Mar 22, 2009
Messages
2
Hi, I have MSI NEO 2 P45 motherboard and Corsair Dominator 2x2GB (TWIN2X4096-8500C5D) 5-5-5-15 at 2.1V at 1066 MHz. I am having troble with these rams I read all the post and change the voltage settings and that doesn't work too (PC shutting down in 5 second and working again then shuts down and works...). But I can use these rams at 800 MHz without having a problem. My question is, MSI released new bios update this month "3.4", this bios update is solving 1066 MHz RAM problems (I read the description it is saying memory optimizations)? I can't install this bios because MSI's LIVE update program still showing 3.3 is the latest version, thank you for your helps. :)
 

RemusM

Active member
LIEUTENANT COLONEL
Joined
Nov 16, 2006
Messages
2,195
acare84 said:
Hi, I have MSI NEO 2 P45 motherboard and Corsair Dominator 2x2GB (TWIN2X4096-8500C5D) 5-5-5-15 at 2.1V at 1066 MHz. I am having troble with these rams I read all the post and change the voltage settings and that doesn't work too (PC shutting down in 5 second and working again then shuts down and works...). But I can use these rams at 800 MHz without having a problem. My question is, MSI released new bios update this month "3.4", this bios update is solving 1066 MHz RAM problems (I read the description it is saying memory optimizations)? I can't install this bios because MSI's LIVE update program still showing 3.3 is the latest version, thank you for your helps. :)
You don't need Live Update at all (in fact, stay away from flashing in windows environments)
Download the BIOS v3.4 from here:
http://global.msi.com.tw/index.php?func=downloaddetail&type=bios&maincat_no=1&prod_no=1485
And use the MSI Forum HQ USB flashing tool:
https://forum-en.msi.com/index.php?topic=108079.0

good luck
 

Gaurav

New member
SERGEANT
Joined
Jan 4, 2009
Messages
38
I recently read about core i7 memory myths sticky which led me to this question...

On core 2 e7300, base freq is 266 and multiplier is 10..which translates to 2.66GHz cpu clock. Also rated FSB is 1066Mhz.
SO the intersting question here is should i go for 800MHz DDR2 or 1066MHz DDR2 ?
I also hav a doubt on what is the default FSB:DRAM ratio here, is it 1:1 or 1:2...

Now in my system, in cpuz..if i click on memory tab..freq is 533Mhz...which is strange since then my memory is running at 1066Mhz hence being oversclocked by default...
Any thoughts ?
 

acare84

New member
PRIVATE E-2
Joined
Mar 22, 2009
Messages
2
RemusM said:
You don't need Live Update at all (in fact, stay away from it  :grin:)
Download the BIOS v3.4 from here:
http://global.msi.com.tw/index.php?func=downloaddetail&type=bios&maincat_no=1&prod_no=1485
And use the MSI Forum HQ USB flashing tool:
https://forum-en.msi.com/index.php?topic=108079.0

good luck
Thanks, but this update will solve my problem? Can I use my rams at 1066 MHz without having a problem?
 

RemusM

Active member
LIEUTENANT COLONEL
Joined
Nov 16, 2006
Messages
2,195
acare84 said:
Thanks, but this update will solve my problem? Can I use my rams at 1066 MHz without having a problem?
No one can guarantee that.
P45 chipset has been designed to work with DDR2-800 and, also, your memory modules are not DDR2-1066.
Overclocking & overvolting the processor, northbridge and RAM modules is not a wise thing to do.

cheers
 

Frankenputer

New member
GENERAL OF THE ARMY
Joined
Apr 16, 2004
Messages
9,815
Just an FYI, it's not Live Update that is bad. It's the fact that you are flashing a bios in the windows environment--any interruption and you will have a bad flash. I have personally used LU 3 x on my 865 board successfully(the 4th time was with a floppy), but, I would not flash within Windows again. Even though I had no issues, I know that flashing within Windows(no matter what utility or what board) is way too risky.  Flashing using a DOS environment is far safer, and the utility developed at these forums is by far the safest method around.
 
Status
Not open for further replies.
Top