Print 21 comment(s) - last by customcoms.. on May 19 at 8:01 PM

EPP DDR2-800 memory automatically overclocks to 1064MHz in the nForce 590 system
DDR2-1000 on DDR2-800 memory, fully automated

As part of the ongoing saga that is Tritium, Corsair and NVIDIA just made an announcement about SLI memory, dubbed EPP, or Enhanced Performance Profiles. NVIDIA and Corsair claim that by using aggressive latencies, optimized SPD timings and non-JEDEC commands, DDR2 memory can reach in excess of 1.2GHz on reference AM2 motherboards. As we've mentioned before, when Tritium-certified components are present in nForce 590 motherboards, the system automatically overclocks core components.  EPP memory, such as the memory Corsair has announced today, is one of those certified components and will automatically overclock.

NVIDIA's EPP specification guide claims "While the JEDEC SPD definitions have been used very effectively, they are not sufficiently comprehensive for overclocking applications. In such applications there are many parameters that are modified, and no provision exists in the JEDEC SPD specification to allow the system to make these changes automatically."   By adding commands in the SPD area that currently have been reserved for future SPD expansion, NVIDIA is able to add hardware hooks that do things like change the memory voltage on the fly.  The EPP specification details that two full profiles may be stored in the data area of the SPD, which are then used for storing voltage settings, memory timings, etc.

NVIDIA and Corsair stress the EPP standard is open, and has been submitted to JEDEC for approval.  Corsair has two components they are announcing today, both are expected to be available on May 23, 2006 to coincide with the AM2 platform launch.  The TWINX2048-8500C5 is a matched pair 5-5-5 2GB kit capable of running at 2.2V.  The TWINX2048-6400C4 is a matched pair 4-4-4 2GB kit capable of running at 2.1V.  Of course, extended profiles only work on AM2 nForce 590 motherboards and approved BIOSes, so you'll have to mind which nForce 590 motherboards you're purchasing if you plan to use the new memory.

OCZ and Kingston also have EPP certified memory in the development queue.  Neither company has released a SKU yet, but OCZ has assured DailyTech the company will have working EPP modules for sampling at the time of the AM2 launch.

Update 05/16/2006: NVIDIA public relations has contacted DailyTech claiming EPP has not been submitted to JEDEC.  Instead, NVIDIA's Bryan Del Rizzo says "We told editors who were briefed beforehand that we would be submitting to JEDEC for possible ratification at the earliest possible opportunity."

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The Concern
By Pete84 on 5/16/2006 6:20:04 AM , Rating: 2
Increased performance is good, but at proprietary rates, this is not a positive motion for consumers.

RE: The Concern
By mcphailvdoulton on 5/16/2006 7:28:29 AM , Rating: 2
it's proprietary for now, but aat least they've submitted their system to JEDEC for ratification. if JEDEC approves it then everyone else can do it too

RE: The Concern
By BillyBatson on 5/16/2006 8:13:54 AM , Rating: 3
I believe you are incorrect. They state that it is open so anyone can currently implement it into their lineup if they wish. Afterall both nvidia and corsair will profit from it since nay mobo maker who does so will be forced to use nvidia chipsets and the consumners who purchase this will most likely (or should) go with the corsair memory (at least at launch). it being picked up by JEDEC would just make it official and most companies will jump on board even though they already could before.
Just like the whole Pre-n(MiMo) and fake N's out there now, nothing has been chosen but every company has a product.
There shouldn't be proprietary pricing but since fewer companies will be on board (all the big boys will play though, asus, afi, msi, gigabyte, etc) it might cost a lil more than if it were a standard that everyone uses.

RE: The Concern
By bob661 on 5/16/2006 11:33:35 AM , Rating: 2
NVIDIA and Corsair stress the EPP standard is open, and has been submitted to JEDEC for approval.
Doesn't sound proprietary to me.

RE: The Concern
By bob661 on 5/16/2006 11:38:50 AM , Rating: 2
NVIDIA and Corsair stress the EPP standard is open, and has been submitted to JEDEC for approval.
Doesn't sound proprietary to me.

RE: The Concern
By lemonadesoda on 5/16/2006 11:40:54 AM , Rating: 1
Maybe that the whole idea (although different implementation).

GPU manufactureres to use DDR2 memory and not GDDR3 which is much more expensive. At 1000 and 1200Mhz, DDR2 is now fsat enough for your GPU. Should make GPU cheaper, or 512MB or 1024MB available without increase in cost.

RE: The Concern
By lemonadesoda on 5/16/2006 11:41:49 AM , Rating: 2
This was supposed to be a reply to "The Cheeba" below. No idea why is appeared after this post

RE: The Concern
By Zoomer on 5/19/2006 9:39:27 AM , Rating: 2
GDDR2 and GDDR3 is NOT the same as DDR2.

GDDR3 != DDR3.

The first commercial product to claim using the "DDR2" technology was the NVIDIA GeForce FX 5800 graphics card. However, it is important to note that the "DDR2" memory used on graphics cards (officially referred to as GDDR2) is not DDR2 per se but an early midpoint of DDR and DDR2 technologies. In particular, the (very important) doubling of the I/O clock rate is missing. It had severe overheating issues due to the nominal DDR voltages. ATI has since designed the GDDR format further, into GDDR3, which is more true to the DDR2 specifications, though with several additions suited for graphics cards.

After GDDR2's introduction with the FX 5800 series, the 5900 and 5950 series reverted to DDR, but NVIDIA's old mainstream card, the 5700 Ultra, used GDDR2 clocked at 450 MHz (compared to 400 MHz on the regular 5800 or 500 MHz on the 5800 Ultra).

ATI Technologies's Radeon 9800 Pro with 256 MiB memory (not the 128 MiB version) also used GDDR2, but this was because it required fewer pins than DDR. The Radeon 9800 Pro 256 MiB only runs its memory at 20 MHz faster than the 128 MiB version, and primarily to counter the performance hit caused by higher latency and the increased number of chips. It is speculated that the GDDR2 used on ATI's 9800 Pro 256 MiB was actually supposed to be used on the GeForce FX 5800 series, but ended up unused after NVIDIA decided to halt the 5800 line's production. The 9800XT that followed reverted to DDR, and later on ATI began to use GDDR3 memory on their Radeon X800 line.

SLI-Ready Memory?
By Griswold on 5/16/2006 6:52:14 AM , Rating: 2
Calling this SLI memory seems like a marketing stunt to increase brand awareness. It will be like "Omgz0rz I've got to get me SLI memory to complement my SLI vid cards on my SLI mob0!".

The memory makers will thank nvidia for that.

RE: SLI-Ready Memory?
By The Cheeba on 5/16/2006 6:57:37 AM , Rating: 5
How long before someone plugs their SLI memory into a X16 PCIE lane attempting to SLI a 1GB stick with a Geforce 7900GTX.

MMmmm I can taste it now.

RE: SLI-Ready Memory?
By bohhad on 5/16/2006 1:21:19 PM , Rating: 2
lol @ the cheeba, that reminds me of that picture i saw awhile ago, i'm sure you guys saw it too... some guy cut the 'extra tabs' off his new PCIx16 6800ultra so it would fit in his AGP slot. or maybe it was a 7800. either way, he screwed up a good card

RE: SLI-Ready Memory?
By Devil Bunny on 5/16/2006 5:05:15 PM , Rating: 2
That my friend, was photoshoped

hats off to nvidia
By kattanna on 5/17/2006 4:15:31 PM , Rating: 2
wether you like nvidia or not, and i do, you got to admit this whole tritium scheme is rather sweet

with this in ANY gamer going to want anything else for their new system?

i think not...ATI and the other chipset people got to be scrambling to come up with something they can "announce" soon to compete

and my hat off to nvidia for becoming a systems company were once they merely made GPU's

their tight system intergration has ensured my gaming board dollars over the years

Nforce for the win!!


note:...though i do hope they make a dual socket nforce board...

quad SLI really needs quad cores and extra memory channels

RE: hats off to nvidia
By Scrogneugneu on 5/17/2006 8:55:13 PM , Rating: 2
note:...though i do hope they make a dual socket nforce board... quad SLI really needs quad cores and extra memory channels

And you DO need all that computing power, right?

RE: hats off to nvidia
By Zoomer on 5/19/2006 9:41:52 AM , Rating: 2
What is the point of this automatic "overclocking"?

It can most likely reach higher, and you'll still have to tweak it slightly to find the limit. Why pay more for some useless features?

RE: hats off to nvidia
By customcoms on 5/19/2006 8:01:03 PM , Rating: 2
Actually, the problem is going to be when the board does its thing, overclocks and then fails. What are we supposed to do then? I'm sure the top manufacturers will implement manual over ride, but what if its not possible? IMO, this is basically a rating system for ram, no different than it is currently.

By Alphafox78 on 5/16/2006 4:11:48 PM , Rating: 3
Isnt overclockings purpose to go faster out of spec? the people who buy this will run it higher than 1000 anyways which will be out of spec negating the purpose of this new standard, right?

RE: Purpose?
By Viditor on 5/17/2006 12:46:00 PM , Rating: 2
I believe that the point is to be able to overclock other words, the system will overclock itself. For that you need memory that can talk to the bios with more information than the SPD standards allow for.

Corsair rofflecopter
By Soviet Robot on 5/16/2006 8:34:15 AM , Rating: 2
Kewl, now if only corsair's "sli memory" wasn't going to cost $500 for a 2GB kit.

RE: Corsair rofflecopter
By OrSin on 5/16/2006 9:18:07 AM , Rating: 2
Prices will drop pretty fast once the other companies get on board with it. My guess under $300 within 3 months.

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