Best ram for AMD platform

**Ph0bLif3** · 04-25-2010, 07:10 AM

Hi everyone!

I am new to this forum but thought I would reply to this thread with my 8Gb 1800Mhz CAS7 on 790FX-GD70. Below are images on stats and some benchmarks(This is not same as in my sig as this was only a test. My sig is what I use for 24/7). Somehow SuperPI doesn't recognize 8Gb ram. "Real memory" and "Available real memory" shows -1 for me no matter what ram I use at 8Gb. I tried a few brands but all where same except if I only used 4Gb then it showed correctly. Wonder why?

SuperPi+CPU-Z

Everest+CINEBECH+3dMarkVantage

Uploaded with ImageShack.us

**Tomasis** · 04-25-2010, 08:41 AM

I got myself Gskill Eco but I had hard times with 1333 divider and 8gb (maybe it is famous 1333 bug?.. so I had to run like Htt300 to get normal stock speed for gs.kill (1600-1700) with 1066 divider lol

I have tried raise htt with 1333 divider but I was able reach is only htt 220.

Another problem is that I run it at volt 1.6 for mem. No lower volt option is available.

Issueess..

**Tomasis** · 04-25-2010, 08:53 AM

Originally Posted by runnin17

I don't think there is a kit, but the guy had 6GB of GTX2 and was selling it for $475. I have since bought the set from him and they are in the mail.

Seemed like a pretty decent deal since a 2GB GTX2 stick is now $250 a pop.
So I just bought three sticks for less than the price of two sticks brand new

congrats with the buy! adding one stick would make a nice 8gb set.

**Socratus** · 04-25-2010, 09:21 AM

**crazydiamond** · 04-25-2010, 09:28 AM

1740mhz c7 on the eco's Tomasis?! very nice, 1700c7 stable for 24/7?

Socratus, 890fx / x6 rig? i would suggest the eco's but if you are going 890fx/x6 i would hold out a little to see some results, 2000mhz might start to become better option

**Ph0bLif3** · 04-25-2010, 09:58 AM

Originally Posted by Socratus

Well, from my experience from all the memory brands I ever tried with AMD "Corsair" worked best. Atleast for me it did. If you can afford 2000Mhz DDR3 ram then buy it as it's almost guaranteed that it will run anything below 2000Mhz stable provided that your IMC can handle it. Might I ask if you are going for 890FX/GX? If so specially 890FX I would recommend buying 2000Mhz sticks as those boards will run 1866Mhz OC and you will get tighter timings like CAS6 with it. Or you could just buy 1800Mhz rated ones but you will probably get looser timings and even looser if you overclock your ram. Remember that Phenom II CPU's like tight timings. If you get lucky with CPU and and somehow manage to run like 2000Mhz it will only benifit from it if you are running CPU around 4200Mhz+ then higher frequency on memory not just tight timings might make it more stable for your overclock. If it's just around 4Ghz I would recommend staying 1600-1800Mhz with as tight timings as possible maby even around 1333Mhz with CAS5. Around 4Ghz CPU try raising NB to like 2800-3000Mhz and see which is most stable with your memory and CPU speed. If you can only get 2600Mhz NB then there might be a slight bottleneck if you are running 1600-1800Mhz ram but it doesn't mean it won't be 24/7 stable in Prime95 blend test.

You can look at my reply to this thread a bit above and see that I am running there 8Gb of 1800Mhz only on 790FX not even 890FX. Mine is example of a very good IMC though I only ran Prime95 for couple of hours as I didn't have more time then. I hope you get lucky and get a good CPU. I cannot come up with anything else. All i can say is good luck

Best regards

Ph0bLif3

**Socratus** · 04-25-2010, 05:27 PM

Yes, i am going to use 890FX+Thuban CPU.
Then, here's the new list of 2000Mhz+ Memory:
http://www.newegg.com/Product/Produc...82E16820145291
http://www.newegg.com/Product/Produc...82E16820220433
http://www.newegg.com/Product/Produc...82E16820231337

**Oliverda** · 04-25-2010, 11:44 PM

G.Skill Releases Flare Series DDR3-1800 MHz Memory for AMD AM3 Platform

The new Flare series DDR3 kits consist of the following specification:

* DDR3 1800MHz 4GB (2GBx2) CL6-8-6-24 1.65V
* DDR3 1800MHz 4GB (2GBx2) CL7-8-7-24 1.65V
* DDR3 1800MHz 4GB (2GBx2) CL8-8-8-24 1.65V
* DDR3 1800MHz 4GB (2GBx2) CL9-9-9-27 1.65V

Not bad.

**Praz** · 04-26-2010, 04:02 AM

Originally Posted by Oliverda

G.Skill Releases Flare Series DDR3-1800 MHz Memory for AMD AM3 Platform

The new Flare series DDR3 kits consist of the following specification:

* DDR3 1800MHz 4GB (2GBx2) CL6-8-6-24 1.65V
* DDR3 1800MHz 4GB (2GBx2) CL7-8-7-24 1.65V
* DDR3 1800MHz 4GB (2GBx2) CL8-8-8-24 1.65V
* DDR3 1800MHz 4GB (2GBx2) CL9-9-9-27 1.65V

Not bad.

Too bad about tRCD in the first two listed and the timings for the last two have been available for a long time.

**Ph0bLif3** · 04-26-2010, 07:39 AM

Originally Posted by Socratus

Yes, i am going to use 890FX+Thuban CPU.
Then, here's the new list of 2000Mhz+ Memory:
http://www.newegg.com/Product/Produc...82E16820145291
http://www.newegg.com/Product/Produc...82E16820220433
http://www.newegg.com/Product/Produc...82E16820231337

I would suggest those G.SKILL @ 2300Mhz not only because of the descent price but also for the big headroom you will get with them. They are allready rated CAS8 at that speed. If you would run them at like 1800Mhz then maby you could get CAS5/6. You would still need a CPU with one hell of a good IMC to run CAS5 at those speeds, but who knows? Maby you'll get lucky. Now imagine that, CAS5 on 1800Mhz with AMD. That would be really fast. More than what most people have. Otherwise get Corsair Dominator GT's @ 2000Mhz as those are proven to be compatible with Phenom II and stable. Personally I would want to try out the G.SKILL's as it would give me more options while overclocking. Remember...this is all up to you which you want to choose.

Best regards

Ph0bLif3

**Tomasis** · 04-26-2010, 08:44 AM

Originally Posted by crazydiamond

1740mhz c7 on the eco's Tomasis?! very nice, 1700c7 stable for 24/7?

Well, almost 1700. I need test another bios rev. .. Chews favorite: F3L

I think it is htt issue.. for 32m super pi I had raise htt with program on windows. with bios I did boot at lower htt as you see here (1680)

**Cecil** · 04-28-2010, 05:59 PM

Gskill Ecos on ASUS 890GX,

7-8-7-20 1600Mhz

Super Pi 1m - 17.488
Super Pi 32m - 18:4.951
PiFast - 27.94
Everest Read - 9314
Everest Write - 6858
Everest Copy - 10845
Everest Latency - 46.9

6-8-7-20 1600Mhz

Super Pi 1m - 17.472
Super Pi 32m - 18:1.769
PiFast - 27.99
Everest Read - 9488
Everest Write - 6859
Everest Copy - 10960
Everest Latency - 45.9

6-8-6-20 1600Mhz

Super Pi 1m - 17.488
Super Pi 32m - 18:2.564
PiFast - 27.68
Everest Read - 9559
Everest Write - 6857
Everest Copy - 10950
Everest Latency - 45.8

7-7-7-20 1600Mhz

Super Pi 1m - 17.457
Super Pi 32m - 18:2.345
PiFast - 27.82
Everest Read - 9297
Everest Write - 6859
Everest Copy - 10758
Everest Latency - 46.8

6-7-6-20 1600Mhz

Super Pi 1m - 17.472
Super Pi 32m - 17:55.934
PiFast - 27.63
Everest Read - 9563
Everest Write - 6857
Everest Copy - 10984
Everest Latency - 45.3

6-8-6-18 1600Mhz

Super Pi 1m - 17.503
Super Pi 32m - 18:0.801
PiFast - 27.68
Everest Read - 9491
Everest Write - 6859
Everest Copy - 11041
Everest Latency - 45.7

6-7-6-18 1600Mhz

Super Pi 1m - 17.456
Super Pi 32m - 17:55.435
PiFast - 27.57
Everest Read - 9562
Everest Write - 6857
Everest Copy - 11054
Everest Latency - 45.2

EDIT:
Removed wprime results since there was no change, with it being a CPU intencive bench.

**BeepBeep2** · 04-28-2010, 06:27 PM

Originally Posted by Cecil

Gskill Ecos on ASUS 890GX,

7-8-7-20 1600Mhz

Super Pi 1m - 17.488
Super Pi 32m - 18:4.951
Wprime 32m - 9.436
Wprime 1024m - 301.437
PiFast - 27.94
Everest Read - 9314
Everest Write - 6858
Everest Copy - 10845
Everest Latency - 46.9

6-8-7-20 1600Mhz

Super Pi 1m - 17.472
Super Pi 32m - 18:1.769
Wprime 32m - 9.672
Wprime 1024m - 305.448
PiFast - 27.99
Everest Read - 9488
Everest Write - 6859
Everest Copy - 10960
Everest Latency - 45.9

6-8-6-20 1600Mhz

Super Pi 1m - 17.488
Super Pi 32m - 18:2.564
Wprime 32m - 9.626
Wprime 1024m - 306.573
PiFast - 27.68
Everest Read - 9559
Everest Write - 6857
Everest Copy - 10950
Everest Latency - 45.8

7-7-7-20 1600Mhz

Super Pi 1m - 17.457
Super Pi 32m - 18:2.345
Wprime 32m - 9.623
Wprime 1024m - 304.793
PiFast - 27.82
Everest Read - 9297
Everest Write - 6859
Everest Copy - 10758
Everest Latency - 46.8

6-7-6-20 1600Mhz

Super Pi 1m - 17.472
Super Pi 32m - 17:55.934
Wprime 32m - 9.701
Wprime 1024m - 303.563
PiFast - 27.63
Everest Read - 9563
Everest Write - 6857
Everest Copy - 10984
Everest Latency - 45.3

6-8-6-18 1600Mhz

Super Pi 1m - 17.503
Super Pi 32m - 18:0.801
Wprime 32m - 9.45
Wprime 1024m - 301.286
PiFast - 27.68
Everest Read - 9491
Everest Write - 6859
Everest Copy - 11041
Everest Latency - 45.7

6-7-6-18 1600Mhz

Super Pi 1m - 17.456
Super Pi 32m - 17:55.435
Wprime 32m - 9.517
Wprime 1024m - 302.565
PiFast - 27.57
Everest Read - 9562
Everest Write - 6857
Everest Copy - 11054
Everest Latency - 45.2

Is it possible that you could test that with a higher CPU_NB clock, say 2600 or 2800? At 1600, memory bandwidth is bottlenecked by your NB clock...thats why nothing is really changing other than standard deviation when you tighten timings.

**Cecil** · 04-28-2010, 07:15 PM

Originally Posted by BeepBeep2

Is it possible that you could test that with a higher CPU_NB clock, say 2600 or 2800? At 1600, memory bandwidth is bottlenecked by your NB clock...thats why nothing is really changing other than standard deviation when you tighten timings.

All runs were done 3 times, and the average posted. Single drops to a single timing arent expected to gain much, but from the 7-8-7-20 I started with, to the 6-7-6-18 I ended with, there was a 9 second drop in Spi 32m.
I was just seeing the difference each drop made.

I can try a high NB speed, but Ive never noticed better scores from it before, but that was with DDR2.

EDIT:
2600NB dropped 1m pi times on 6-7-6-18 by .4 seconds. Guess with DDR3 there is more of a difference then. Thanks for pointing that out.

**Royalk** · 04-28-2010, 07:26 PM

Originally Posted by Cecil

All runs were done 3 times, and the average posted. Single drops to a single timing arent expected to gain much, but from the 7-8-7-20 I started with, to the 6-7-6-18 I ended with, there was a 9 second drop in Spi 32m.
I was just seeing the difference each drop made.

I can try a high NB speed, but Ive never noticed better scores from it before, but that was with DDR2.

EDIT:
2600NB dropped 1m pi times on 6-7-6-18 by .4 seconds. Guess with DDR3 there is more of a difference then. Thanks for pointing that out.

Have you tried bump more RAM frequencies on ASUS 890gx?

**Cecil** · 04-28-2010, 07:28 PM

Originally Posted by Royalk

Have you tried bump more RAM frequencies on ASUS 890gx?

Yeah, ran past 1700 with stock 7-8-7-24 timings. Right now just trying to find out what timings are doable with this ram at 1600Mhz.

6-7-6-18 1600Mhz 2600NB

Super Pi 1m - 17.082
Super Pi 32m - 17:32.815
PiFast - 27.13
Everest Read - 10603
Everest Write - 8934
Everest Copy - 12399
Everest Latency - 41.6

**Tomasis** · 04-29-2010, 02:54 AM

Cecil, well done =) I wish I could run 6-7-6. here is a no go.

**TheGreenFoX** · 04-29-2010, 04:00 AM

Cecil:
Any special settings in BIOS? (my Eco cant even run stock on 790FX/890GX...P55 is fine btw)

**CrimInalA** · 04-29-2010, 09:30 AM

http://clark.skybed.be/bench/RIMG0046.JPG

Are these the right "elpidia" ones ?
those chips are on my 1800 mhz cas 8 kingston hyperx kit (2x2gb) .

What can i expect from them ?

**BeepBeep2** · 04-29-2010, 11:50 AM

I believe MNH-E Hyper is what you want, however I don't think MGH-E Hyper is half bad. I don't really remember.

**Don_Dan** · 04-29-2010, 11:57 AM

@CrimInalA: Yes, this is the good stuff.

Originally Posted by BeepBeep2

I believe MNH-E Hyper is what you want, however I don't think MGH-E Hyper is half bad. I don't really remember.

MGH-E are the fixed chips that don't die like the old ones ( MNH-E ).

**Cecil** · 04-29-2010, 12:37 PM

Originally Posted by TheGreenFoX

Cecil:
Any special settings in BIOS? (my Eco cant even run stock on 790FX/890GX...P55 is fine btw)

My 790FX wont run 7-8-7 no matter what ram I use (I also have a set of Corsair XMS3 7-8-7-20s), but the 890GX doesnt care what I set it to if the ram is able to run it.

I just bumped VDIMM along the way, for 6-7-6-18 1600Mhz I had it at 1.525v (havent tried less, just overcompensated a bit).

1740Mhz 7-8-7-24 works with 1.45v OCCT stable.

I just got this stuff and still have more testing to do.

**CrimInalA** · 04-29-2010, 12:45 PM

Originally Posted by Don_Dan

@CrimInalA: Yes, this is the good stuff.

MGH-E are the fixed chips that don't die like the old ones ( MNH-E ).

Thanks Don , now i'm at easy knowing i don't have the broken ones .

**richierich** · 04-30-2010, 01:09 AM

I'm running my "old" OCZ DDR3 Gold PC3-8500 @ over 1600MHz speeds 8-8-8-20-24 w/ 1.8v. Is that too high of a voltage? Or should I sell these and get some "newer", low voltage DDR3?

**mav2000** · 04-30-2010, 01:37 AM

1.8 is way to high for 24/7 clocks on the gold.

Thread: Best ram for AMD platform

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