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post #4381 of 10702
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Quote:
Originally Posted by Ellis View Post
I wish there was more information released about the Gigabyte beta BIOSes. For all I know, the latest beta for my board could fix the issue that stops me being able to use offset voltage, but I don't know about it. I don't want to just go flashing BIOSes here there and everywhere, especially beta ones, unless I know that they'll fix my problem. :/
is that the LLC and offset issue? What does everyone at the giga mobo thread say?
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post #4382 of 10702
Quote:
Originally Posted by Arimis5226 View Post
I would like to interject a question, here. What is more detrimental to pc health? Multiple BSODs, or stress testing your cpu more? I'm wondering if the wiser approach would be to set your voltage to whatever your personal "safe" limit is, say 1.35V for example, and then lowering it in increments of .01V until you hit instability. Then cranking it back up by .005V and tweaking from there. What say you?

For my first OC, I set my voltage to my limit of 1.38 volts and Identified I get P95 stable at a multiple of 45, but not 46. So I knew my personal limit was going to be a mult of 45, if my temps stayed within my personal safe limit. I then started lowering my voltage and running 3 hour P95 blends to monitor my temps. In the end I ended up with 1.37 manual CPU V.

The next time I tried to OC, I started at a mult of 45 and a manual CPU V set to 1.28. I lost count of the number of BSODs I got before I stabled back out at 1.37 again. My first OC took far less time, and far less BSODs. I also noticed that in some of those BSODs for the second OC, that windows did not always successfully complete a dump. This sort of thing cannot be good for Windows. I'd imagine one would likely have to rebuild the OS eventually, no?
I like to use offset for OCing. so i started at lower MULTI(e.g. 39) with - offset.
U find the lowest Vcore ur cpu can be stable at a given multi and than u go 1 MULTI up on that - offset. Test again...if it fails raise Vcore(less - offset)...and so on.
The most important thing here though is not to add - offset if VID rises cause it will cause instability at a lower MULTI.
because of the VID change some cpu-s can handle more - offset at a higher MULTI.
but cpu is going trough different (lower) MULTIs when under moderate load and VID changes with it, so does the Vcore when using offset.

This way u have the least possible number of BSOD and u avoid those nasty idle BSOD.
But it does take a fair amount of time and patience to OC this way. in return u get almost perfect stability.

Hope this helps...i m in a hurry so i cant go to details too much.
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post #4383 of 10702
Quote:
Originally Posted by munaim1 View Post
BSOD's are better, why? because rebuilding/installing a fresh OS can be done countless times without the HDD faliing etc, it'll cause software issue's rather than hardware. Stress testing can be both, one of the main things is degrading a chip through stress testing, but im talking about long periods of time, can't put a number to it, but I remember one member here called sockpirate, that probably did around 200/250 hours of prime testing without any issue's.

I'd rather destroy windows than my chip if you know what I mean, basically starting from a low amoutn of vcore kind enables you to make estimates on how much you will need to increase to get stable, it is always a good idea to start low and work your way up.

The idea of throwing voltages around and hoping for the best is not really my way of overclocking, granted I may have 30 bsods while stress testing, but I do that on a backup partition or another HDD, without compromising my main OS, but the main thing for me is tweaking while overclocking, so I don't have to go backwards. There can be a fine line between 4 hours stable and 12+ hours and I'd rather do that while 'finding' my overclock.

The only problem is that it's time consuming, but you get it out of the way as you do your overclock.

In your case how could you be sure that 4.5 was the sweet spot? what if 4.4ghz only required 1.29v. At that point maybe you could have made a decision to keep it at that than increase 0.8 just for an extra 100mhz.

It's trial and error and there is no one way to overclock.
Okay, would you apply this same logic to an SSD rather than an HDD?

Edit: And good point with the "sweet spot". I just assumed that voltage increase was near linear with regards to multi. Looks like I learned something here.
Edited by Arimis5226 - 10/4/11 at 9:50am
post #4384 of 10702
Quote:
Originally Posted by munaim1 View Post
is that the LLC and offset issue? What does everyone at the giga mobo thread say?
No, the issue is that it crashes under load with offset voltage enabled.

As for the people in the Gigabyte motherboard thread, I recall asking that question and getting ignored. But I'll try again.

post #4385 of 10702
Quote:
Originally Posted by psyside View Post
Use other/newer P95 version.
I have the latest version.
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post #4386 of 10702
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Quote:
Originally Posted by Arimis5226 View Post
Okay, would you apply this same logic to an SSD rather than an HDD?

Edit: And good point with the "sweet spot". I just assumed that voltage increase was near linear with regards to multi. Looks like I learned something here.
ummm... I wouldn't do stress testing on an ssd, knowing they are limited writing cycles, it would make sense not to run prime on it, as it is supose to be your main OS on it. Can't remember fully but I think a 20GB partition on a HDD is more than enough for a windows 7 install, run prime 95 on that without any problems, OS gets corrupted?? just reinstall it again



Quote:
Originally Posted by Ellis View Post
No, the issue is that it crashes under load with offset voltage enabled.

As for the people in the Gigabyte motherboard thread, I recall asking that question and getting ignored. But I'll try again.
I wasn't aware of that, bottom line is that LLC is required against the voltage dropping to low. Read my other thread regarding radnom idle bsods etc here:

Solving / Fixing BSOD 124 on sandybridge. READ OP FIRST!!

I have shown a clear example of how LLC contributes to idle voltage and thus creating instability in some situations.

have a little read and let me know what you think.



Quote:
Originally Posted by jdip View Post
I have the latest version.
Sorry bud, I havn't been following, whats seems to be the issue?
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post #4387 of 10702
Ups.... I did all my stress testing on my Ssd I got number od BSOD... should I re install windows ???
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post #4388 of 10702
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Originally Posted by K2mil View Post
Ups.... I did all my stress testing on my Ssd I got number od BSOD... should I re install windows ???
Might be a good idea a fresh install is always nice. I do all my 3dmark benching driver reviews, prime testing on a different OS. I mean it's not worth it corrupting your main OS, it's hassle to reinstall everything if it gets corrupted. With a seperate HDD, you don't have any worries. At one time I actuall had 6 20GB partitions on a 250GB with a whole lot of different OS's.

One was soley for stability testing, the other's for benching. If any of them showed signs of corruption, all it took was a reinstall and I was back in business.

When I run prime I usually run without installing anything apart from the mobo drivers, that includes no internet connection or an antivirus. These little 'tips' are in the OP

EDIT:

Disabling antivirus and internet is a good one, I received a lot of bsods while priming when I had the internet enabled, stupid windows update caused a few crashes, I use to think my overclock was unstable lol, actually it was fine, just background processes causing it. I install fresh OS's to minimize the background process as much as I can.
Edited by munaim1 - 10/4/11 at 1:49pm
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post #4389 of 10702
Quote:
Originally Posted by munaim1 View Post
Might be a good idea a fresh install is always nice. I do all my 3dmark benching driver reviews, prime testing on a different OS. I mean it's not worth it corrupting your main OS, it's hassle to reinstall everything if it gets corrupted. With a seperate HDD, you don't have any worries. At one time I actuall had 6 20GB partitions on a 250GB with a whole lot of different OS's.

One was soley for stability testing, the other's for benching. If any of them showed signs of corruption, all it took was a reinstall and I was back in business.

When I run prime I usually run without installing anything apart from the mobo drivers, that includes no internet connection or an antivirus. These little 'tips' are in the OP

EDIT:

Disabling antivirus and internet is a good one, I received a lot of bsods while priming when I had the internet enabled, stupid windows update caused a few crashes, I use to think my overclock was unstable lol, actually it was fine, just background processes causing it. I install fresh OS's to minimize the background process as much as I can.
wow having a separate drive for benchmark make perfect sense to me ....well I already stress tested it while have all my software and antivirus installed on my ssd :wall: so having those bsod curupted my system ? or can I just keep it as it is ??
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post #4390 of 10702
Quote:
Originally Posted by munaim1 View Post
ummm... I wouldn't do stress testing on an ssd, knowing they are limited writing cycles, it would make sense not to run prime on it, as it is supose to be your main OS on it. Can't remember fully but I think a 20GB partition on a HDD is more than enough for a windows 7 install, run prime 95 on that without any problems, OS gets corrupted?? just reinstall it again





I wasn't aware of that, bottom line is that LLC is required against the voltage dropping to low. Read my other thread regarding radnom idle bsods etc here:

Solving / Fixing BSOD 124 on sandybridge. READ OP FIRST!!

I have shown a clear example of how LLC contributes to idle voltage and thus creating instability in some situations.

have a little read and let me know what you think.





Sorry bud, I havn't been following, whats seems to be the issue?
Okay, so I read through that, and whilst it was useful, I decided that I needed to try some things out for myself as well.

So I flashed to F6c after a CMOS reset and set the RAM back to 1600MHz with XMP, set Vcore to "normal" and offset to +0.05V, QPI/VTT to 1.1V, PLL to 1.7V, and set the rest of my preferences back to how I need them (disable unused controllers etc.)

Anyway, +0.05V put the voltage too high, so I adjusted it to -0.08V and...

0.96V at idle, 1.3V under load without an insta-crash in Prime95! So far, this is a definite result!

Now, because F6c still doesn't let you use LLC with offset voltage, the idle voltage is perhaps a little low. I guess the only way to tell that is to see if my PC crashes randomly when not in use or when I'm doing basic desktop tasks.
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