DDR3 for new build

[NickN]

I found the problem, I had 1 stick of bad memory.

Replaced that and hit an easy 4G

Temperatures hit 82 so have to work on that a little bit.

And I really appreciate the help..........

I did not see your post above till nafter I posted my long winded checks

LOL!


Ahhhh

[richardd43]

Am on the wrong computer to check the BIOS settings so will send them later.

Here is the memory I currently have.

http://www.memoryexpress.com/Products/PID-MX23294(ME).aspx

EDIT: missed the last post. I do know HT was enabled... when I get off work I will disable HT and give it another try.

[NickN]

OK.. your good on that memory.  A defective stick would have probably thrown the QPI bandwidth off and caused the BIOS to not allow the right multipler be used to get you where you needed to be


Do make sure to set the memory speed and timing manually for those sticks as well as the other settings I posted

HT will kill temps.. no ifs, ands or buts about it.

If you use the system for AV then you will probably want to reduce CPU speed and enable HT.. for FSX, kill HT and raise CPU speed

[richardd43]

I set the cpu to 200 and disabled the HT.

At 200 the lowest memory speed is 1203.

1440 is available at 180.

OCCT never went above 77 degrees.

CPUZ shows a SPD value of 610. Does that mean that the memory will run at 1800.

[NickN]

Something is not right here...


You have a 6GB kit installed?

It says 12GB

The memory timing is not right.. should also be running 1T CMD

Here is what it should be running without any clock involved:

http://www.simviation.com/cgi-bin/yabb2 ... 687624/8#8

And this is what it should be running WITH the clock

http://www.simviation.com/cgi-bin/yabb2 ... 1233009578

except tha clock post is mushkin memory @ 7-8-7-.. same CPU and memory speed though @ DDR3 1600 (800Mhz) and your timing should remain the same at 7-7-7 and 1T

You are missing a multiplier here... you are locked on the 6x multiplier right now and missing the 8x. From the description the next one available is 10x

you should be @ FSB/DRAM 2:8 and not 2:6

Do you have 6 or 12GB installed?

If its 12GB pull all but the 3 sticks in the orange slots and recheck

If you do not have 12GB then there is a problem with the board, the BIOS or the memory itself





Richard .. please review this entire post. paying attention to the chart listed:

Overclockings for Core i7 920 / Core i7 940

http://vip.asus.com/forum/view.aspx?boa ... uage=en-us

There is a Nehalem O/C calculator here:

http://icrontic.com/uploads/2008/11/nehalemcalc.zip

and review the math/settings rules:

Rules and relations:

BCLK (Base Clock

[richardd43]

I apologize big time... Initially I ran the test with 6G of memory.. Once everything ran correctly I put the other memory in.

When I had to take the first memory kit back and trade it the store where I bought it made me a good deal on the other 6G

I was excited about making the run and staying under 80 deg I did not mention the extra memory.


But yes, with the single kit installed it ran 7-7-7 1T

But there is good news. Last night I did a 4G Video conversion to Hi Def and it ran about 30% faster than I was doing before.

Also found out the extra 6G of memory was not required as this computer does not seem to use as much memory when it is processing.

My question now is should I pull the extra memory and use it for something else or just leave it in the computer.

EDIT:

Just reread your complete post and will pull the memory and put new screen shots in.

[richardd43]

Here is the shots overclocked with 6G of memory







Stock Speed

[NickN]

OK timing is correct now but memory speed is still not right..

[NickN]

1600 MHz memory frequency

[Wingo]

Nick, I was just reading through those settings and was wondering about the load line calibration setting. There are massive debates about it in forums everywhere and I wanted to see which side you agree with.

Some say to disable it as it protects the CPU from transient voltages, others say it is perfectly safe to enable it and allow the CPU to run at a higher voltage than in the BIOS.

I have run with it both enabled and disabled. With it disabled I set the vcore in the bios to 1.45 for a 4.2ghz clock. When idle it sits around 1.43 and under load drops to 1.39.

With LLC enabled for the same clock speed I set the vcore to 1.35 in the bios. It idles at 1.38 and under load it goes to 1.39.

In both the computer is perfectly stable when running OCCT. Which of these two is more ideal than the other? Besides what everyone says about LLC protecting from transient voltages and being similar to Vdroop, what does LLC do exactly?

[NickN]

I will settle any debate here

ENABLE it or leave it DISABLED if you are stable with it DISABLED.. it doesn

[richardd43]

OK...

I followed your list for everything except the SpeedStep and Turbo Mode which are not available in my BIOS

I really appreciate the help with this.

I tried a couple of videos with and without Intel HT Technology and it did not make a noticable difference.

I am curious about FSX now. Was not going to install on this computer but I would like to fly at least once with some higher settings.

[Wingo]

Thanks for the reply Nick, its great to hear a definative answer. I never listen to the everyday folk on the other forums, but I still read just to see what everyone else is crapping on about. I never meant to question your recommendations, I just wanted to know what the setting actually was and your knowledge about what it does and its potential risks. I'm judging from the fact that you didn't mention anything about my voltages that they are safe to run? Ignoring the transients as I have high quality components (ASUS P6T Deluxe and Corsair TX850 single rail PSU), would you say it is safer to run with the lower voltages and LLC enabled or the higher voltages and LLC disabled? Would there be any difference in the longevity of my processor between the two?

[NickN]

No problem Wingo..

If what you posted was an issue in voltage I would have told you

as I said, either way is fine.. neither hurt perf or degrade the CPU over time

One method simply means you must set a higher Vcore to compensate for the Vdroop system.. the other is 'what you see is what you get'

In your case both end up around the same Vcore reading, correct?

So why would there be any issue or difference?


If you can run stable with it enabled then thats fine!

If not then enable LLC is not going to make any difference other than stability.









@ Richard.. That looks SUPERB now sir!

My guess is this BIOS was not setting the correct UNCK speed on AUTO and making the memory run slower on you. That little calculator is a great tool to keep around for fine tuning in other BCLOCK options.

As for settings missing.. SpeedStep may not be in the BIOS. That I HAVE seen as it will be controlled through CE1 instead

TURBO may not show if certain functions are disabled or if AI tuner is MANUAL instead of AUTO. Perhaps tied to the CPU Multiplier/BCLOCK >133 setting too because that is how TURBO works.. it manipulates the multiplier.

That one is sort of strange as every 920 I have looked at had Turbo listed in the Advanced CPU section

I would not be concerned about it simply because if its not there, its not enabled and you don't want it enabled in a clock. The fact that you mentioned in the beginning of the thread there was a higher CPU speed over the default of the 920 tells me it must be there somewhere.

[richardd43]

Hi Nick

I can't begin to tell you how much I have appreciated your help.

The system runs great and I am more than happy with it.

Made my wife happy too. She inherited the machine currently in my signature.