who is runing 4 sticks of ram @ 1t - DFI SLI

[maverik-sg1]

The thread say it all guys - I know OPB has done it - but who else here can run or is runnign 4x256 or 4x512MB sticks of RAM at 1T command rate on their DFI- NF4 MOBO's?

OPB used BIOS 316-x and got 4xGSkill TCCD DIMMS RUNNING

Post your successes (and failures) here together with BIOS information.

Cheers

Mav

[Major]

Your not going to see many posts I'm afraid. It's pure luck if your A64 memory controller can do 1t with 4x sticks. OPB IMO was using an FX?? with an excellent contrller. I've only seen one other post using 4x and 1t and that was on an Opteron

[maverik-sg1]

Yeah I got me a San Diego FX55, do we know if they're capable?

[Vapor]

4xSS 1T is easy. 4xDS isn't. I know I have to run 2T at 280 3-3-3-0, never tried 1T on a significantly slower clock (sub260). Opterons can also do it because of the registered RAM.

[maverik-sg1]

Interesting,

So when u say SS basically you mean 4x256 right?

Most (if not all) 512MB sticks are DS.

Apart from the fact that 256 usuaully clocks higher than 512 (or SS higher than DS) is there a performance gain in using 4x256 instead of 2x512?

Mav

[drcrawn]

unbuffered ram (which is what everyone is using here except s940 systems) cannot run more than two double ranked modules @ 1T. If you ran 4x single rank (must be single sided) you can run 1T I think with s939. FYI all double sided unbuffered dimms are double rank.

So basically no one.

edit: I should also point out that double sided registered sticks can be single rank, as both sides of memory represent one unit.

[drcrawn]

Interesting,

So when u say SS basically you mean 4x256 right?

Most (if not all) 512MB sticks are DS.

Apart from the fact that 256 usuaully clocks higher than 512 (or SS higher than DS) is there a performance gain in using 4x256 instead of 2x512?

Mav

SS means single sided, nothing to do with size.

Simplest terms, if you use more than 2 double sided sticks, you will not run 1T on s939.

Can someone link OPB getting 4x512 @ 1T please...did he use single rank dimms?

Check out this http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26094.PDF
for all specs relating to AMD platforms, and what memory configs work with which sockets.
or here:
http://img358.imageshack.us/img358/3025/rank4dj.jpg (http://imageshack.us)
obviously not set in stone though

[Vapor]

What core do you have? Claw? Sandy?

[drcrawn]

Does that mean if your going to run 4x512 2t you will also need to run them at ddr333? I just ordered 2x512 OCZ gold BH5 to run with my Corsair 2x512 Pc3500c2 which is also bh5 for a total 2gigs , will i be able to manually select 400ddr and be stable???? I honestly dont mind sacrificing going to 2t but if im going to have to run them at only 333ddr then i might just cancel my order. That would really kill my bandwidth.

technically, if they are double sided sticks then according to the chart, you run 333 divider at 2T. I have a very hard time believing that that is the case for everyone though. I haven't heard of anyone having to actually run the 333 divider. edit: with the new revisions...

[nugzo]

Venice and Sandiego run ddr400 2T with 4x512DS. Winchester and earlier run @ ddr333 2T with 4x512DS. It could be that the Winchester is in the same group as the venices and sandies, cant remember, but for sure everything b4 the winchester is ddr333 4x512DS

[nugzo]

Are you sure of that?

Pretty damn sure..although i think it was winnie and up.

[Vapor]

A motherboard's bios will detect what kind of chip you have and go from there...it's AMD's guideline to use the DDR333 divider as well as 2T with Winnie and older. I'm not sure if you can manually unset the DDR333 divider. Probably depends on the board (for example, on the DFI, you can change the divider, IIRC). Newer 90nm chips don't need the DDR333 divider, just 2T. I know this for a fact as my 4400+ can run 4xDR at 285MHz 2T all day.

[Vapor]

FXs have the best memcontrollers and theirs apparently can run DDR400 rather than DDR333. They overrode the default for sure (default is DDR333). They also got that FX directly from AMD. :stick:

[Major]

Like I said in the first post, its up to your particular A64 if you are able to run 4x with 1t. without a doubt you should be able to do 2t with 4x sitcks. It's very hard to OC with 4x though. It takes alot of tweaking to get them stable. I've tried 4x G.Skill GHGB UTT BH-5 and G.Skill TCCD with both a San Diego and a Winnie and was successful but only after considerable effort.

My suggestion if you looking to have 2gig is to get a good set of 2x1gig sticks, right now it seems the Crucial Ballistix are the best choice altho the OCZ DDR500 will probabaly OC just as good but I've not seen any results yet

[Vapor]

My 4xDR OC was one of the easiest things I've done....

Then again maybe I'm not stressing the RAM or the memcontroller at only 280 3-3-3-0?

[fatty]

Then how do I get my 4 x 512 gskill 4400 le stable at 1t ???

even at 200 fsb 5,2,2,2 it will run 2t :(

[Vapor]

You can't. Mine's at 2T...I omitted it only because I thought it was a given. I was saying it was easy in that I set it at 280HTT set my timings at 3-3-3-0 and it worked.

[fatty]

Ok no probs I am still waiting to bring my chilly1 headed mach2/v2000 case home to push my cpu and ram a little further so for now I just sit at 17 x 200 5,2,2,2 2t

[HokaHey]

Anyone is running 4 x 512 MB DDR400 TwniMOS Speed Premium on BH-5 M2G9J16A8APPFF0811A4T

http://img45.imageshack.us/img45/9025/tmsp32009nw.jpg

How's the speeds ?

[jinu117]

I've had UTT running at 1t with 4 sticks ONCE.... (2gb). Only was able to do 220 2-2-2-5 regardless of voltage and it was winchester (gasp). Thing is, that was the only CPU I was able to out of dozen or so of S939 I went through (maybe more than dozen).... :P Consider yourself lucky if you can even boot with 1T 4 DDR400... Never got chip with memory controller like that after that.

[HokaHey]

I've had UTT running at 1t with 4 sticks ONCE.... (2gb). Only was able to do 220 2-2-2-5 regardless of voltage and it was winchester (gasp). Thing is, that was the only CPU I was able to out of dozen or so of S939 I went through (maybe more than dozen).... :P Consider yourself lucky if you can even boot with 1T 4 DDR400... Never got chip with memory controller like that after that.

:rolleyes: I need 2GB of ram running on Venice - actually i'm waiting for E6 to buy or I have a chance to buy E3 running on 2800 - which do you recommend ?... I have these memory that was mentioned and I don't know really what to do... it will be smart move to change it for example on new GeIL Dual 2 x 512MB One-S ( 4 x 512 MB ) even on 2t ?... http://www.geilusa.com/proddetail.asp?linenumber=68 or of not what do you think about PDP Patriot LLK 2 x 1GB DDR 400MHz CL2-5-3-2 or

[Onepagebook]

GH also:p: Done it long times ago with 510-2 bios :)
All by air cooled ;)


http://205.209.142.180/onepagebook/2gbgh/gskillgh2g32mv.jpg

Super pi 32m :)

http://205.209.142.180/onepagebook/2gbgh/gskillgh2g32m.jpg

[HokaHey]

yeah but isn't it with FX (have better memory contrl.)...

[fatty]

Thats all very nice but what settings did you use and is there any possability that us plebs can just stick in 4 x 512 sticks of LE and get that??? or is it just because you got the hand picked stuff??

also would it matter if you have 0437 and 0440 chips on the ram as I have 2x 0437 and 2x 0440

I also have 2 x 0437 la sticks that wont even boot in my dfi???