*HOT* | Corsair DOMINATOR GT | 6GB (3x2GB) | DDR3-2000 7-8-7-20 @ 1.65V | *HOT*

[TONY GAL]

Yummy

what?

[Erklat]

w00t, CAS7 :droolallovertheplace:

Screens please, preferably 2500MHz

[kintaro]

i'm looking forward to see results

[Zeus]

Yummy

Wait, ain't that the sticks chiller had for sale?

[ProStock]

Yes i post that pic in here in case folks didn't know corsair as released GTX2 2250mhz

[Zeus]

w00t, CAS7 :droolallovertheplace:

Screens please, preferably 2500MHz

The above stick in the picture is just an old TR3X stick , the batch that died so easy, the lower one is one of the GTX sticks.

Expensive but handpicked.

[Erklat]

Lol, haven't noticed the bottom stick is different from top one, where I saw only the 2000C7GT inscription. Thanks for insight

How expensive are we talking about?

EDIT: found, 200$ per 2GB stick. That is expensive
Are they sold as kit at all?

[Zeus]

Lol, haven't noticed the bottom stick is different from top one, where I saw only the 2000C7GT inscription. Thanks for insight

How expensive are we talking about?

EDIT: found, 200$ per 2GB stick. That is expensive
Are they sold as kit at all?

Yup 200 a piece, afaik only sold seperately.

[Erklat]

Sorry about intrusion here, but I'd hate to open a new thread just to ask one simple question.

Would you rather go after:
Corsair Dominator GT
Patriot Viper Sector 5
G.Skill Perfect Storm

Dominators are the most expensive, but if they are the best anything <250$ I can cope with.
G.Skill's have the highest frequency, tight binning too probably, but are even cheaper than the Corsair.
Patriot Viper are the cheapest due to absence of unnecessary fans, yet there is Vantage registration key.

Because they are going to be imported, I take Corsair has the best CS here?
Please take that into consideration, too.

They are all built around MNH-E Hypers I take. Which one would you go after?

Sorry about slight offtopic, I'd hate to open new thread to read a couple of replies which would help me
make mi mind.

Thanks

[eva2000]

If you want guaranteed hyper ics then Corsair Dominator GT are the ones to get

[Scaniris]

Hello,

I have a question about my Dominator GT's. I'm working with a P55 basis, so dual channel for me, but I hope you'll help me.

Here is my memory reference:

Question is:

- do you have some guidelines for overclocking this memory?
- is there somewhere a table with timings supported per frequency? I mean for daily use I'd rather like to run the memory @ 1600MHz, but with better timings. For example 1600 7-7-7-20 1T or better.

I'm a beginner in memory overclocking / downclocking, need some help is possible

Thank you very much

[Erklat]

I think 2000 with CAS8 is tight enough. I don't think that 1600 CAS7 has a much greater bandwith, if it is greater at all.

Furthermore, on daily basis, you won't notice the difference.

[Scaniris]

Well I was guessing to reduce the voltage to 1,5 at lower frequency but with better timings to get same performance with better power efficiency. But I'm maybe wrong, am I?

I don't notice any difference in gaming or backoffice stuffs between 1333/1600/2000MHz memory... I'm only human. But in video compression for example, some seconds less... great but not absolutely necessary. I'm trying to understand how to adjust timings with frequency @ lower frequency.

[Erklat]

First of all, I'd try to reduce vDIMM @ default speed and timings. See if it can be lowered, probably it can.

For this, not sure if it would be possible at 1,5v. Lower your speed using divider and set vDIMM to 1,65 with CAS7.
If it works, it should I believe, then try lowering your voltage on notch at a time.

[Scaniris]

Thanks for the procedure. I'll try the steps you recommend. I thought the default was 2000MHz 1,65V 8-8-8-24 2T... when you talk about default you are talking about the SPD values? I mean if I want to put frequency @ 1600MHz, I have to check if there is some SPD values for 800 and check the related timings ? Example with my memory: 1333MHz in the SPD tab of CPU Z shows 9-9-9-24 timing. But nothing with 1600MHz. I don't understand how is it possible to have worster timing @ lower frequency...but it is maybe because of the voltage @ 1,5?

I'll try this: 1600 7-7-7-20 @1,65V, then reduce voltage. Do you recommend to use mem test for checking if the setting is correct ? Or may I use Super Pi or Prime 95 to validate? It will probably take a while... but I'll try that way.
Some other questions:

- What is the benefit to reduce the tRAS?
- 1T and 2T what does it mean?
- tRC and tRFC is that the same thing? Because in the XMP profile the value is 51 but it's not stable if I manually put tRFC @ 51 into the bios (in auto mode, value is 98...).

There is maybe a tutorial explaining that, sorry for beginner's questions.

[Erklat]

Thanks for the procedure. I'll try the steps you recommend. I thought the default was 2000MHz 1,65V 8-8-8-24 2T... when you talk about default you are talking about the SPD values?

When talking about default we are talking about frequency, voltage and timings declared on the stickers which can be found on the modules.

I mean if I want to put frequency @ 1600MHz, I have to check if there is some SPD values for 800 and check the related timings ? Example with my memory: 1333MHz in the SPD tab of CPU Z shows 9-9-9-24 timing. But nothing with 1600MHz. I don't understand how is it possible to have worster timing @ lower frequency...but it is maybe because of the voltage @ 1,5?

Those timings in SPD are in compliance with JEDEC standards. I guess the frequency of 2000MHz is not among their standards.

I'll try this: 1600 7-7-7-20 @1,65V, then reduce voltage. Do you recommend to use mem test for checking if the setting is correct ? Or may I use Super Pi or Prime 95 to validate? It will probably take a while... but I'll try that way.

I don't consider SPi to be a good stability test, although it can point out whether you are on the right path or not. I prefer Prime95, but I see a lot of folks here saying multiple instances of win memtest to be the best memory stability test.

As for the secondary timings, I am not sure what every one of those does, therefore I'm not going to even try and answer. Although, pretty sure when tighter they give higher bandwith

Thanks.

[CryptiK]

Thanks for the procedure. I'll try the steps you recommend. I thought the default was 2000MHz 1,65V 8-8-8-24 2T... when you talk about default you are talking about the SPD values? I mean if I want to put frequency @ 1600MHz, I have to check if there is some SPD values for 800 and check the related timings ? Example with my memory: 1333MHz in the SPD tab of CPU Z shows 9-9-9-24 timing. But nothing with 1600MHz. I don't understand how is it possible to have worster timing @ lower frequency...but it is maybe because of the voltage @ 1,5?

I'll try this: 1600 7-7-7-20 @1,65V, then reduce voltage. Do you recommend to use mem test for checking if the setting is correct ? Or may I use Super Pi or Prime 95 to validate? It will probably take a while... but I'll try that way.
Some other questions:

- What is the benefit to reduce the tRAS?
- 1T and 2T what does it mean?
- tRC and tRFC is that the same thing? Because in the XMP profile the value is 51 but it's not stable if I manually put tRFC @ 51 into the bios (in auto mode, value is 98...).

There is maybe a tutorial explaining that, sorry for beginner's questions.

These are Hypers, skip DDR3-1600 MHz and go straight to at least DDR3-1600 MHz 6-7-6-18 1T or even 6-6-6-18 1T and see how you go

Use Prime Large FFT's (can also make custom runs with all me used), Multiple instances of HCI Memtest is excellent, SPI32M, throw everything you can at them to really test stability.

[Scaniris]

Thank you very much for the recommendations, I'll test it asap.

But to make sure I'll really good understood what you explain:

skip DDR3-1600 MHz and go straight to at least DDR3-1600 MHz 6-7-6-18 1T or even 6-6-6-18 1T and see how you go

What do I have to skip? Maybe 1800MHz?

[Scaniris]

Hi,

It works fine @ 6-6-6-18 1T. Configured in seconds, fits the 4.2 OCed CPU just fine. 20 minutes of Memtest multiple run simultaneously to load the ram @ 98%. No problem very stable. Here are the settings:

[Scaniris]

Now something very interesting: I have only one second difference between two superpi 32M calculations ^^

1st one is with memory @ 1600MHz 6-6-6-18-1T
2nd one is with memory @ 2000MHz 8-8-8-24-2T (reference value of the ram)

Both with same CPU/OC settings except mem timings, ratio and target frequency. Same OS (not optimized for benches, it's my daily used boot). Same temps.

8'55'' for the C6, and 8'56'' fort the C8







The second screen shot has been done some days ago with the previous version of CPU Z. But I don't think it does matter

[SteveRo]

I have a set of Dominator GT 2000 7-8-7-20 3x2GB arriving on Monday.
Using a GGBT x58 xtreme mobo/965 - I assume 2144 7-8-7-2T is faster than 1876 7-7-7-1T - please confirm should that be true?
For whichever should be faster - what would you recommend for settings, subtimings and voltages for stable benching PC Mark Vantage?
I am currently number 5 PC Mark Vantage on the hall of fame list, looking to increase my position - http://www.futuremark.com/community/...pcmarkvantage/

[msgclb]

I have my Corsair Dominator GT DDR3-2000 6GB kit in my P6T Deluxe but it is only showing 4GB in the BIOS and of course in Windows 7. I've swapped the modules around with the same results. I tried another 6GB Triple channel kit and both the BIOS and Windows 7 show 6GB.

I know this Corsair Dominator GT kit worked in my P6T Deluxe as I've got screenshots to prove it. Any suggestions or am I going to end up with a RMA?

[SAE]

Sometimes they need a lil more vtt then. But if they worked with these settings b4, one module may be faulty. You could probably check, what module it is and try to boot with that one in single channel. Maybe do some memtesting and such. Often there are contact problems in the cpu socket as well, but i think you can rule that out as the other set worked.

[msgclb]

I have my Corsair Dominator GT DDR3-2000 6GB kit in my P6T Deluxe but it is only showing 4GB in the BIOS and of course in Windows 7. I've swapped the modules around with the same results. I tried another 6GB Triple channel kit and both the BIOS and Windows 7 show 6GB.

I know this Corsair Dominator GT kit worked in my P6T Deluxe as I've got screenshots to prove it. Any suggestions or am I going to end up with a RMA?

Sometimes they need a lil more vtt then. But if they worked with these settings b4, one module may be faulty. You could probably check, what module it is and try to boot with that one in single channel. Maybe do some memtesting and such. Often there are contact problems in the cpu socket as well, but i think you can rule that out as the other set worked.

I did some more checking and found that one of my Corsair Dominator GT modules won't boot in the DIMM_A1 socket. All of my other modules boot.

[SAE]

Weird behavior. Hope it does not mean the dimm is dying.