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i7 3820 - 4820 Overclock Club - Page 117

post #1161 of 6498
Quote:
Originally Posted by Scorpion49 View Post

I did read the full post, its confusing as hell and you were talking to the other guy about using offset mode so I assumed you were as well since you did not list any voltages. Next time be a little more specific. thumb.gif

haha, yeah sorry... I tend to try and over explain things and it can lead to a mess instead, something I'm trying to work on biggrin.gif
post #1162 of 6498
*delete* - double post sorry, didn't seem to go through first time after refreshing multiple times.
post #1163 of 6498
Quote:
Hey man, thanks for your help.


I did everything like you suggested and got these results:



How do they look? The vcore jumps to 1.37V and it seems a bit high to me for a 4.6Ghz OC. Maybe there is a way to lower it a bit?

Good Stuff!

You can try setting the offset as low as it will go and still provide stability. You could also lower the LLC setting to provide less voltage on demand. You can also try playing with your VCC and VTT voltages. Sometimes a small bump to those can allow for a lower Vcore. I do notice that you will get a bit more voltage (~ .02 -.03v) more than you need when using the offset compared to the manual Vcore, but the upside is that you get to use the power saving features. To be honest, I don't think the offset is that accurate. I would do some trial and error and find the minimum you need for stability.

Edit: If you want to test platform stability, use maximum RAM in IBT. Also, I forgot to mention something that is not shown in my screens: You want to keep your VCC voltage within 500mV of your RAM voltage (i.e. RAMv = 1.5, VCCSA = 1.0v or greater). I just upped my VCCSA to 1.02v and DRAM is 1.51v. I turned LLC down to medium with a .06v offset, and I seem to be stable for the moment @ 107x43 and 1.336v in Prime95.

cheers.gif
Edited by Rmerwede - 8/5/12 at 5:33pm
post #1164 of 6498
IBT proves stable till you fold. Run Fold at home for 12-24 hours and if it doesn't bsod then its stable. Nothing else keeps the cpu under as much stress in my experience.
post #1165 of 6498
Or use Aida64 (or something validated for SB-E) so that you're testing all the instruction sets that are specific to the architecture.

See here: http://benchmarkreviews.com/index.php?option=com_content&task=view&id=834&Itemid=38&limit=1&limitstart=0
Quote:
Unvalidated stress tests are not advised (such as Prime 95 or LinX or other comparable applications). For high grade CPU/IMC and System Bus testing Aida64 is recommended along with general applications usage like PC Mark 7. Aida has an advantage as it is stability test has been designed for the Sandy Bridge E architecture and test specific functions like AES, AVX and other instruction sets that prime and like synthetics do not touch. As such not only does it load the CPU 100% but will also test other parts of CPU not used under applications like Prime 95. Other applications to consider are SiSoft 2012 or Passmark BurnIn. Be advised validation has not been completed using Prime 95 version 26 and LinX (10.3.7.012) and OCCT 4.1.0 beta 1 but once we have internally tested to ensure at least limited support and operation.
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post #1166 of 6498
I should really try and overclock again, the overclock failed like 3 weeks ago and I just set it back to default instead of trying to fix it. tongue.gif
post #1167 of 6498
Quote:
Originally Posted by Plex View Post

Or use Aida64 (or something validated for SB-E) so that you're testing all the instruction sets that are specific to the architecture.
See here: http://benchmarkreviews.com/index.php?option=com_content&task=view&id=834&Itemid=38&limit=1&limitstart=0

Aida64 did work better for me for stability testing. BUT if you fold you will get higher temps than Aida so be aware. Aida seems to run 3-4C cooler than prime/folding for me.
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post #1168 of 6498
Wow, very good thread. I have read everything from page 50 to current. I do have a question. What is the consensus on running 1.44v in bios for daily use? I am on an H100. I really want to hit 4.8Ghz stable for 24/7. I'm currently at 1.42v but when I run Prime95 blend mode, core 3 errors out after 3-4 hours. Appreciate the input. I'm trying to run P95 for 12hrs.
 
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post #1169 of 6498
I run 4.75 with 1.41. What is your cpu and strap at?
post #1170 of 6498


I think it's good. Opinions? I Might need to work on trying to lower the vcore a little? I know that 80 on the max is ugly (the house is at 79-80F. Summertime in south Texas, got to love it!) I plan on doing a reseat of the H100 with a new application of AS5. I will run prime after I do that tomorrow.

Es
 
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