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[Official] The Sandy Stable Club **Guides, Voltages, Temps & BIOS Templates** Inc SPREADSHEET - Page 744

post #7431 of 10701
Nice chart, looks very useful.
What is Stdev?
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post #7432 of 10701
Hi guys, going to set my machine on test tonight to hopefully join your club, but I note when i set prime 95 to either 1344 or 1792, I only see around 60% CPU load.

Why is that? Is it right?

I have 16GB and have set 11GB for the test
post #7433 of 10701
Hopefully this image will help?
378
Edited by Stu-Crossfire - 2/20/12 at 12:55pm
post #7434 of 10701
Quote:
Originally Posted by Stu-Crossfire View Post

Hopefully this image will help?

Looks like you have only 4 workers in prime.
You need one for each thread.
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post #7435 of 10701
Ah, thats what I get for following a picture I saw on heer of how to set up a custom bland.
Are the rest of the figures ok? I assume you run one test with min and max set to 1344 and then another with them both set to 1792?
post #7436 of 10701
Quote:
Originally Posted by Jayjr1105 View Post

Quote:
Originally Posted by pfunkmort View Post

I also have a question. I recently finished a full 12 hour prime at 4.5 GHz on my 2500k, with an offset of -.080, my ram at 1600, and LLC at ultra high. It was, I thought, my last step. But, I read somewhere that Asus boards have their C1e, C3, and C6 disabled @ auto setting, so I went into BIOS to turn them to enable, and I got an endless reboot loop as soon as I hit the windows screen. My questions are two. Do I need these states enabled to be able to properly utilize stepping technology (so I can run offset and get a voltage drop @ idle)? And does this point to any specific thing I can do to try to get stable?
I had planned not to ask questions here, because it should all be straightforward, but I'm at a bit of a loss on this one.
{edit} - nevermind, I got it fixed. now my idle voltage gets down to .928, which seems dangerously low to me (I also just bumped my offset to -.075 and my LLC to high, because I was paranoid about idle BSODs) but I'll just have to watch it. Back to Prime 95! Thank you guys though. Your help on getting this computer stable has been invaluable.

C3 and C6 should be disabled if your worried about idle BSOD's. .928v is perfectly normal for idle voltage, at 1600Mhz you don't need much to keep it happy.


0.928 with C1E, C3, and C6 enabled works for me at low idle, but for others it will give a low voltage BSOD. Every chip is different. You could reduce your LLC to Medium, increase your offset to -0.050 (instead of -0.080) and then just increase your additional turbo voltage more for at-load voltage.

 

Don't use LLC to set the low idle voltage. Use LLC to reduce extreme Vdroop at high-load states. Use a less extreme negative offset to change your low-idle voltage and you'll have a more efficient OC, since you can reduce your LLC. (Ideally, you would have no LLC for the most efficient OC, but that's not always possible. For me at 4.7 GHz to 4.9 GHz, I need Medium LLC.)

 



Quote:
Originally Posted by apSlain View Post

Hey guys, I've got two quick (and hopefully simple) questions...

  1. What is the lowest idle voltage that can be set for when the C.P.U. down-clocks to 1600MHz?
  2. I was reading through Wikipedia's Sandy Bridge page and up to the 2700K it says that the supported memory is "up to dual channel DDR3-1333". I'm running 4x2GB DDR3-1600 R.A.M. in my machine...do I have to set the XMP profile to 1333MHz instead, due to this?

I'm using an offset voltage and due to my load-line calibration settings, I get a ~.3v difference in my idle (~0.992) and load (~1.328) voltages. I want to set my load voltage lower to help with heat, but I'm not sure how low I can go with the offset as I already am under 1.0v with a -.15v offset. Any recommendations?

If it's useful, my P.C. is certified stable at 4500MHz with the offset at -.15v. I have no intention of pushing it higher, I'm just looking to maximise the potential of my 4.5GHz overclock with the least heat.


The lowest idle voltage is different for every CPU. Mine seems to do just fine with 0.928 Vcore at 1600 MHz. I've seen some people as low as 0.750 Vcore at 1600 MHz. It just depends.

 

Manually set your memory to 1600 timings, rather than allowing them to auto-detect.

 

To reduce your load voltage, I'd say to switch your LLC. If you reduce the amount of LLC you have and use the offset voltage to tune your low-idle voltage, you can then use additional turbo voltage to tune your at-load voltage.

 

The less LLC that you use, the less negative (or more positive) offset you're going to need, and the higher the additional turbo voltage you'll need in the BIOS to get a specific value in the OS. (Meaning that with a huge LLC setting, you might only need -0.030 offset and +0.004V turbo, but with a very small LLC you might need -0.005 offset and +0.095 turbo to get the same exact values for core voltages in the OS. Note that I just made these numbers up, but you get the idea.)

 

Try fiddling with your LLC, use offset to set your idle voltages where you want them and then configure your load voltages using the additional turbo voltage setting. Less LLC is always better, so long as you can keep it stable.

 

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post #7437 of 10701
Quote:
Originally Posted by Stu-Crossfire View Post

Ah, thats what I get for following a picture I saw on heer of how to set up a custom bland.
Are the rest of the figures ok? I assume you run one test with min and max set to 1344 and then another with them both set to 1792?

Do you want to do a 12h run to join the club?
If so you select custom test and change the ram to your maximum ram minus 1-2gb for the os.
Set the workers to 8 and leave the rest of the settings alone.
But there are also instructions on the first page.
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post #7438 of 10701
338

Xigmatek Dark Knight

Haven't had time to fine tune yet! frown.gif
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post #7439 of 10701
Quote:
Originally Posted by Jayjr1105 View Post

First off good choice on Board and chip... Second, refer to this chart for "what is a normal voltage"
700
1.32V is very common for 4.5Ghz
credit to Molybdenum for the chart

Well... It's all about your chip, but that gives you some kinda direction.
I have sucky chip and I need about 1.36V for 4.5GHz.

@KhaoticKomputing
"Any tips on how much is to much?"
When temps are going too high or you set voltage like +1.5V

@Stu-Crossfire
"I assume you run one test with min and max set to 1344 and then another with them both set to 1792?"
Yea for 15min each for testing stability, then 12h (custom) blend for joining the stability club, but its up to you what you consider as stable.



FOR NEWBS, PLEASE READ THE FIRST POST, you will get valuable information there and you maybe dont have to ask questions which answers are on first page thumb.gif
Edited by MooMoo - 2/20/12 at 2:09pm
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post #7440 of 10701
Quote:
Originally Posted by NARF View Post

Do you want to do a 12h run to join the club?
If so you select custom test and change the ram to your maximum ram minus 1-2gb for the os.
Set the workers to 8 and leave the rest of the settings alone.
But there are also instructions on the first page.

Quote:
Originally Posted by MooMoo View Post

@Stu-Crossfire
"I assume you run one test with min and max set to 1344 and then another with them both set to 1792?"
Yea for 15min each for testing stability, then 12h (custom) blend for joining the stability club, but its up to you what you consider as stable.


Excellent, thanks guys, really appreciate your time.
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