Check out this Bandwidth.
This Corsair 6400C3 rocks on the new AM2.
OPP
http://www.xtremesystems.org/forums/...9&d=1148770670
http://www.xtremesystems.org/forums/...0&d=1148770787
Printable View
Check out this Bandwidth.
This Corsair 6400C3 rocks on the new AM2.
OPP
http://www.xtremesystems.org/forums/...9&d=1148770670
http://www.xtremesystems.org/forums/...0&d=1148770787
wow
still with your foxcon ?
Dude, that is absolutely kick ass. Seeing anything over 10K in Sandra is instant :slobber:
Yep still on the Foxconn, nice board.Quote:
Originally Posted by Supertim0r
OPP
Insane Sandra benchmark, congrats :clap:Quote:
Originally Posted by OPPAINTER
By the way, is the difference between running 1T and 2T still as big as it was with DDR1? And can you show some 1T results please?
No entry present for dual core ddr2 in the current wr thread so I guess that means it's you:) Has the bandwidth translated into improvements for other benchmark results?
1T doesn't really work past DDR2-800, so chances are that 4-4-4 at 558MHz would perform better than DDR2-800 at 3-3-3 with 1T.Quote:
Originally Posted by alexio
BTW, it looks like you beat OCZ Tony's score by a few hundred points. He may want to get tweaking again to beat you ;)
is it for sale now ? (foxcon + corsair 6400c3 ?)
Great setup you have there, Eric! :toast: Those mems sure are a great companion for AM2 :up:Foxconn - very soon; 6400C3 has been available on Newegg for couple of days now, last time I checked...Quote:
Originally Posted by Supertim0r
"I put my FX on water so I could play with some DDR2 and HTT clocks.
Foxconn 590 mobo
Corsair 6400C2,, 2Gigs
1x 7900GTX on air stock volts
OCZ 700W PSU
Swiftech APOGEE CPU waterblock
My FX runs good at around 3240MHz with 1.5V.
At first I ran the Corsair memory at 3-3-3-5 1T around 814MHz, I thought the results were pretty good. But then I switched over to 2T and ran the memory at 4-4-4-5 2T around 1080MHz. Much to my surprise the 1080MHz results were better even though it ran at 2T."
http://xtremesystems.org/forums/showthread.php?t=101105
OPP
Nice BW, but one thing I dont get... sub 70% EFF, it seems horrible, I would expect seeing SKY HIGH BW from AM2 with IMC, 85-90% EFF - which in your case would be 15GB/s++
That would be the 4-4-4-* timings and 2T command rate. The result is awesome none the less ofcourse :)Quote:
Originally Posted by M.Beier
Really nice bandwidth man. I pull 10K+ in Sandra and know it ain't easy. How about running an Everest bandwidth. My rig pulls 12.6k, you should be real close to 14k.
You know OPP, I'd love to see some rosetta benchies with that kinda bandwith. Great scores there. When is 12k coming.
damn...the DDR2 price is insane :(
higher cpu mhz will help a LOT too :toast:Quote:
Originally Posted by alexio
chips? volts? cooling?
nice results
It was done with my FX-62 watercooled and runing 3350MHz.
I used 2.5V on the memory.
OPP
I lowered the tRP to 3 but still can't nail 12k. It barely did anything.
OPP
do you know the IC that corsair uses?
look really good so far.
No I don't know the IC.Quote:
Originally Posted by metro.cl
On the other hand I nailed 12k by lowering the tWR from a 6 to a 3 :D
OPP
Quote:
Originally Posted by OPPAINTER
nice scores,
get some everest read/write/latency if you get the time, just want to look @ them
:)
We'll have to wait until next bench session:)Quote:
Originally Posted by ex2cib
OPP
Ahh ... those chips below should be some fantastic chips !Quote:
Originally Posted by OPPAINTER
What does OnePageBook has to do with OPPainter ? ;)Quote:
Originally Posted by moddolicous
Even more Oxx's ;) - OPP, will you do some ORB action anytime soon? :D
Woops, didnt even realize that. OPP & OPB, 1 letter difference.Quote:
Originally Posted by M.Beier
On topic, congrats on braking 12k and I would still like to see some rosetta benchies to see if bandwith has anything to do with it.
Already did. Problem is my 7900 cards have bad memory. I need new cards to get serious.Quote:
Originally Posted by M.Beier
With this Same Corsair 6400C3 running at 808MHz 3-3-3-5 1T I scored:
#3 in 3D06
#5 in 3D05
#2 in 3D03
OPP
Dont you dare tell' me you havnt done a 01SE oldboy :slapass:Quote:
Originally Posted by OPPAINTER
01SE it the way we play mate, heh, at least the x850XT havnt got retired in that bench yet :fact: :p:
No I havn't done 01 as matter of fact. I think it I may score around 52k with single card.Quote:
Originally Posted by M.Beier
OPP
wow ddr2 can finally show its true power in your hands :slobber:
I threw my Corsair 8500C5 in along with my 6400C4 for 4 gigs of ram.
Hows this 4-way interleave action:D
OPP
Damn you Eric, if you dont stop soon, my keyboard will die due :slobber:
Hehe, well, seems like its worth getting' another 2*1GB sticks... - Tetris requires 4GB's as well :D
Seriously.. wow. That is awesome stuff man.. keep it coming! It's great that the different modules worked together no problem.
I just tryed it at 800MHz running 1T.
1T isn't gunna work very good with 4 sticks:D
Didn't run at all at 800 1T.
OPP
great work OPP, AM2 is glowing during its' 15 minutes of fame.
Charlie, stop that BS...Quote:
Originally Posted by charlie
AM2 might even be better in 64bit apps, seen the 64bit performance of conroe??
Would be cool to report a mod though :p: :banana: ;) :D
seen 64-bit performance of am2? :) I will guarantee you that the ratio of 32bit performance to 64 bit peformance is almost exactly the same on conroe and am2.Quote:
Originally Posted by M.Beier
As i said in the other thread, it is the lack of 64-bit programming, drivers, and better OS that is giving the decreased scores.
s754/939/940 picked up performance going from 32bit to 64bit in most apps.
Conroe only gained in cinebench from what I know (and a synthetic bench that I forget the name of).
If AM2 picks up like 754/939/940 did then that gives some breathing room.
That would be intresting to see to bad 64bit os are missing so many drivers or atleast microslows os doesQuote:
Originally Posted by STEvil
Oppainter,
what could you tell about the latency of the memory at the varoius settings?
Thank you... :)
Hi Eric, nice to see you playin on Am2 and DDR2.
Interesting thing to see different performances with 1t/2t.
OT: have u checked recently Overclocking section and took a look at a certain Opteron 154 under s.s ?
:D:D
/OT
very impressive results
Am2 in your hands is a POWER:slobber:
Corsair 6400C3 is not just for AM2. Works pretty good on Intel platform too. 440 @ 3-3-3 so far with 2.38v. :) I just got the modules and have tested them for less than 30 minutes. No memory tweaks. I just set main timings to 3-3-3-9 and upped FSB/memory speed. Have not tried any other settings yet. I think these sticks will do 450 @ 3-3-3, especially with something better than the AOpen board I'm using.
http://img270.imageshack.us/img270/9757/3334408ky.jpg
Quote:
Originally Posted by sierra_bound
Have you played with other memory, how do these Corsair 6400C3 compare?
OPP
I have Super Talent DDR2-800 that will do 413 @ 3-3-3, so the 6400C3's are much better, at least with those timings. 3-3-3 is about as low as you're going to get with 1GB modules. I tried 3-2-2 at 400, but just got loud beeping on my board. 4-2-2 was also a no-go at that speed. I just tried 3-4-3 and got them to do 444.
Because of the FSB limitation with Yonah, I haven't been able to test the limits of the C3's. In all likelihood they will do 500+ at 4-3-3.
I still like the Super Talents. Even at 4-4-3, they are very fast.
6400C3 slightly tweaked. DDR2-880 @ 3-3-3. :)
http://img332.imageshack.us/img332/9...tweaked9mm.jpg
DDR2-887 @ 3-4-3
http://img171.imageshack.us/img171/8443/3434430sc.jpg
Quote:
Originally Posted by sierra_bound
That's some sweat clocks on the Corsair:)
Assuming it's 1T.
How many volts are you useing?
OPP
Thanks. :) Using 2.38v (DMM measurement). Hoping for 450 @ 3-3-3 with same voltage when I get a Conroe system.
Looks like the 6400C3 is clocking even better on Intel then it does on AM2.Quote:
Originally Posted by sierra_bound
OPP
I haven't run Sandra, but I'm sure I won't get anywhere near the bandwidth that you're getting with AM2. The C3's do seem to clock well on Intel.
I thought the I975X always used 2T?
One thing I forgot to do when I had my setup running on watercooling was test the memory for highest 1T clocks.:rolleyes:Quote:
I haven't run Sandra, but I'm sure I won't get anywhere near the bandwidth that you're getting with AM2. The C3's do seem to clock well on Intel.
Now that I see your results it looks like I need to set it up again:D
I was running at 816 3-3-3-5 1T but it may do better.
OPP
It does, Intel runs 2TQuote:
Originally Posted by Gautam
Well that would explain alot:DQuote:
Originally Posted by RyderOCZ
OPP
Oops, sorry about that.
Still, I don't think you're going to find many 2X1GB DDR2 kits that will 440 @ 3-3-3, regardless of command rate. 2X512MB, yes. But not 2GB.
So what are favorite memory sticks now? :DQuote:
Originally Posted by sierra_bound
OPP
Oh I still like the 6400C3's. But as I said earlier, the Super Talents are pretty good too. They run best at 4-4-3. With a better board, they should do 525+ with those timings.
People still bench with 2X512, but 2X1024 is where almost everyone is heading. A lot of the Japanese are now using 2GB kits. That should tell you something.
558 with the same timings using the Corsair 6400C3.Quote:
Originally Posted by sierra_bound
http://www.xtremesystems.org/forums/...0&postcount=19
OPP
Hmmm, gonna have to try that when I get a new board. :D The problem with the AOpen board I'm using is that there are only two ratios to work with - 3:4 & 3:5. If I had 1:2, I could do more speed testing.
Have you tried Cas5? Maybe you get your C3's above 600.
Actually that's not entirely accurate. The NF4 SLI Intel chipset allows you to run 1T.Quote:
Originally Posted by RyderOCZ
http://www.xbitlabs.com/articles/chi...4-intel_5.html
http://www.neoseeker.com/Articles/Ha...e4intel/3.html
This motherboard here will be the time for me to try out Conroe on I think.
http://www.xtremesystems.org/forums/...1&postcount=13
NVIDIA chipset, 1T action and SLI:D
OPP
Yeah, I'd like to see you run Conroe. :)
A little higher at 3-3-3 :)
http://img174.imageshack.us/img174/337/4423331wl.jpg
Is this 6400 C3 better than 8500 C5?
I will try it with conroe's set up.
:eek: Now that's what I wanna see, nice tight timings. :DQuote:
Originally Posted by sierra_bound
Thanks. Not sure how this memory will do with Conroe. I'll find out soon. ;)
@Dumo - I haven't tried the 8500C5's, so I don't know if they're better.
is it these ram u guys are talking about ? http://edbpriser.dk/Listprices.asp?ID=206421
Yup, that's the RAM. :)
I like the 6400C3 better. The 8500C5 can't go high with tight timings compared to the 6400C3. The 8500C5 is meant more for highest possable frequency but with loose timings.Quote:
Originally Posted by Dumo
OPP
I also like the C3 better than the 8500 part. Ive hit 460 1:1 3-3-3-9
Booting at 433FSB 1:1, best for sandra scores with the exception the Conroe scores no where near what AM2 or Presler does.
Yep, the C3s are pretty nice :D
http://i10.photobucket.com/albums/a1.../1020-3434.gif
Is this 6400c3 capable of 4-3-2-* 3-3-2-*? (Or something with a 2 :p: )
sierra_bound and Oppainter, which revision are these sticks? Both Rev1.1?
Do you have any idea on the used chips? I guess D9GKX, could that be right?
My modules are v1.1. I think most out there are the same since the RAM is fairly new. I believe the modules use highly-binned Micron Rev. D chips. This explains in part why the RAM is so expensive.
I'm wondering about a "2" also.Quote:
Originally Posted by Vassili
I have only ran my sticks on AM2 and the Foxconn mobo I have doesn't even have any 2s in it. 3 is the lowest the mobo offers.
OPP
Running RAS# to CAS# Delay at 2 is very difficult to do with 1GB modules, at least on the Intel platform. The C3's work best at 3-4-3 or 3-3-3.
Does the memory controller of current AM2 CPUs even support tRCD 2? I remember Tony had a thread about it shortly before AM2's release, stating that the controller doesn't support anything tighter than 3-3-3.Quote:
Originally Posted by sierra_bound
I can't speak for AM2. 2X512MB kits will run 3-2-2 on the Intel platform.
I concluded a long time ago that memory speed is much more important than timings with DDR2. Given a choice between running 3-2-2 @ 350 vs. 4-3-3 @ 500, I would choose the latter any day of the week.
The reason why I bought the C3's is because they can run RAS# to CAS# at 3 at very high speeds, which is very rare for 1GB DDR2 modules. So you get the best of both worlds; speed and good timings. Many other DDR2 modules can't run X-3-X at DDR2-900 or higher.
Well, I'd say that's a characteristic of the P4 platform, not the memory technology :)Quote:
Originally Posted by sierra_bound
Yeah, there's no denying that Corsair C3s are amazing. IMO Corsair is the leading brand in the DDR2 world ATM.Quote:
Originally Posted by sierra_bound
i speak from personal experience that AM2 does no support x-2-2-x
3-3-3 is the lowest it'll go it seems.. i wonder if amd will change that with revG's memory controller.
Thanks, that's what I thought. But I still can't figure out what necessitates that limitation :confused:Quote:
Originally Posted by ozzimark
well, it might actually go lower once we get a tweaker like A64 tweaker for it.. it was possible to set TRCD and TRP(R or W) to 1 for DDR1 with certain bioses or with A64 tweaker for instance.. or it could just be a limit of the memory controller (which sucks but can be overcome).
Yes, we've all seen many examples of unofficial timings that actually do work (even though many values do not really work). But as tRCD and tRP are internal DRAM operations that don't really stress the controller, I'm pretty optimistic about it.
Mmmm, not sure I buy that. But anyway, this discussion is straying from the subject of this thread. :)Quote:
Originally Posted by _damien_
Regarding the C3's, they are very expensive. But not many people have been disappointed by their performance.
use systool ;)Quote:
Originally Posted by STEvil
http://www.eclipseoc.com/image/am2/tweaking.PNG
it cas tcl 2 oddly enough, but not trcd 2 or trp 2 :wasntme:
you cant set CAS latency from within windows anyways, so that doesnt matter.
Systool was built from a64 tweaker iirc..
edit - or heavily influenced by.
I don't think any DDR2-chips support CAS 2 anyway. Some of the internal DRAM operations would actually work at any setting, as long as the number of cycles provide sufficient time for signal stabilization. Many settings would work even @ 1, although in real life that would obviously require a pretty low clock frequency. However CAS latency is different, in that each setting must be build into the chips' I/O gating in the form of pipeline stages. If the chip lacks the CAS 2 stage, that setting simply won't work, regardless of voltage and clock frequency. CAS cannot be higher or lower than the supported settings - one example of that is the Winbond BH-design, which lacks the CAS 3 stage.Quote:
Originally Posted by STEvil
Certain CPU-features determine whether a platform responds well to memory timings or bandwidth - that's an established fact. But yeah, it's way off-topic.Quote:
Originally Posted by sierra_bound
Back on topic. 6400C3's and Conroe. :D
http://img.photobucket.com/albums/v38/ds7510/422412.jpg