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3930k instability :(((( - Page 9

post #81 of 87
FTW420 should be listened to for sure. (Check the results for the latest OCN OC challenge in Toronto, grats FTW!!!) thumb.gif

I read thru this thread and noticed one omission. The RIVE has a "Rampage Tweak" mode which controls how agressive it tries to set the secondary and tertiary timing for RAM. Raja over at ASUS has admitted that sometimes the board gets it wrong. What I have been doing based on that info is to boot the machine with Rampage Tweak mode set to "1" (compatibility) mode. Save and exit and right back into BIOS to input all those timings it came up with manually. Once I've done that, I set it back to AUTO then it's good to go. This method rules out RAM timing drift. One could even go so far as to disable "MCH Recheck" on the same page once you are stable to your satisfaction.

Having said all that, everyone please ignore the following:

Have you noticed there is no 5GHz SB-E Linx/prime stable club ? Passing Linx or prime means nothing on SB-E. All it really means is that if every computer in the world blew up but yours, and we needed the next prime number to ensure man's survival, you'd be a hero. Other than that, run AIDA64 stability test, much more realistic.
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post #82 of 87
Thread Starter 
I will never pass 1.20 VTT but just trying to understand if more than 1.20 VCCSA is risky? Because he did not write about VCCSA. He wrote about VTT.
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post #83 of 87
Quote:
Originally Posted by ugotd8 View Post

FTW420 should be listened to for sure. (Check the results for the latest OCN OC challenge in Toronto, grats FTW!!!) thumb.gif
I read thru this thread and noticed one omission. The RIVE has a "Rampage Tweak" mode which controls how agressive it tries to set the secondary and tertiary timing for RAM. Raja over at ASUS has admitted that sometimes the board gets it wrong. What I have been doing based on that info is to boot the machine with Rampage Tweak mode set to "1" (compatibility) mode. Save and exit and right back into BIOS to input all those timings it came up with manually. Once I've done that, I set it back to AUTO then it's good to go. This method rules out RAM timing drift. One could even go so far as to disable "MCH Recheck" on the same page once you are stable to your satisfaction.
Having said all that, everyone please ignore the following:
Have you noticed there is no 5GHz SB-E Linx/prime stable club ? Passing Linx or prime means nothing on SB-E. All it really means is that if every computer in the world blew up but yours, and we needed the next prime number to ensure man's survival, you'd be a hero. Other than that, run AIDA64 stability test, much more realistic.
I noticed similar behaviors on ASUS P9X79 - so looks like general ASUS problem :-p
Another thing with ASUS -> when you change something in BIOS don't be so sure that actually is changed ! (i can't prove this but after couple of adjusting s of parameters it is not so bad idea to reset bios (at least "F5") and set up the parameters again with a same values)
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post #84 of 87
Thread Starter 
What about VCCSA safe voltage?
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post #85 of 87
Quote:
Originally Posted by agulerer View Post

What about VCCSA safe voltage?

Um, as I pointed out, a member that just won an overclocking competition answered your question. Pretty lucky if you ask me to have someone like that answering your questions IMHO.

Hard to weed out the good from the bad answers on a forum, that is understandable. Instead of demanding answers, decide for yourself. Sure, many people of different definitions of safe, but more than one knowledgeable overclocker has already answered the question.
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post #86 of 87
Quote:
Originally Posted by agulerer View Post

What about VCCSA safe voltage?
Again:-
  • IMC (integrated memory controller) voltage is VCCSA for SB-E CPU. In SB-E datasheet, it called "VSA".
  • VTT(A/D) is voltage for I/O sections of Direct Media Interface Gen 2 (DMI2) interface and PCI Express interface. It also called VTT.

FtW 420 said VTT higher than 1.2V is not recommended & it already tested to be true here. As for VCCSA, the max safe voltage is 1.4V but usually you don't need higher than 1.2V even when overclock. General recommendations are that do not unnecessarily increased VTT & VCCSA when overclocking. This is why from the beginning I recommend using auto/default voltage because Asus motherboard is very good in giving proper voltages. The only thing you need to tune is VCORE. Regarding you need to set 1.25V for VCCSA, I think it's OK. Just don't unnecessarily increased it.
Edited by kizwan - 7/28/12 at 10:11pm
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post #87 of 87
Edit: I set my VTT to Auto and reads 1.25v before 16GB 2133MHz RAM CPU 4.8 GHz O/S +0.005 / +0.015 now, testing! Sleepy!

There is a great guide for the Sandys, have you looked it over?
[=http://www.overclock.net/t/1189242/sandy-bridge-e-overclocking-guide-walk-through-explanations-and-support-for-all-x79-overclockers][/]
Edited by broken pixel - 8/4/12 at 5:25pm
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