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5GHz and Beyond! - The Quest for a Stable Overclock - Page 4

post #31 of 45
Quote:
Originally Posted by Nick2253 View Post
Once again, thank you so much! SB is so different from everything else I've done that I'm kinda going crazy.

So, couple questions:

1. Why did you increase your offset during your PLL runs?

2. Is my "goal" to get either a worker failure or a 101 BSOD? Up until now its been constant 124s.

3. I'm using the default blend. Should I instead be using 1344? Will that speed up my testing?

4. Is my strategy of underclocking my RAM to get a better OC a good one, or should I just be running it at stock right now?

5. Is there a way to monitor PLL and VCCIO voltages from within Windows itself?

Again, thanks so much. You are a life saver!
1. Just to see if it makes a big difference and as you can see it didn't really, the PLL at 1.58750v did though (I could try and lower the offset down but I kinda know that I i'll the extra voltage later).

2. Nope the goal is to make it stable lol On that journey you will find obstacles like the 124 error or worker's failing and that's when you know that you're not far off from being stable. 101 indicates low vcore however 124 can be a littel tricky so when you do get it the aim is to try and change that 124 to something else or even eliminate it completely without increasing the vcore first. No matter what if you need vcore, then you need it however I like to see if something else can help the stability and act as a substitue for vcore. As you can see changing the PLL voltage in the smallest steps available kinda helped me, 1.58750v looks like a reat spot for mine, however I still have plenty to test lol

3. Try 1344 or 1792, either one is a quick stability test but just a note it can be unreliable so see how it works for you.

4. RAM overclocking doesn't really have anything to do with the cpu unless you're going for crazy clocks and suicide runs etc. That is why I recommend that you leave RAM on stock.

5. There's no need if you're going to be going in small increments. Just find the right setting in the BIOS through tsting with prime and that's all you need.

You're most welcome, happy to help
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post #32 of 45
ok..i'm betting you're still getting workers failing :: ok..cpul pll =set to 1.835-1.9

vccio(vtt)=1.12-1.15 and..i'm thinking it's your ram ..running @ 1333 with 1866 timings..check into that.set manually if you have to..use cpu-z to get the correct timings..
 
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post #33 of 45
Thread Starter 
Quote:
Originally Posted by munaim1 View Post
3. Try 1344 or 1792, either one is a quick stability test but just a note it can be unreliable so see how it works for you.
If they are unreliable, then how are they useful for stress testing? Or is it more like a false negative thing: i.e. if it fails, that means it either is unstable or might be stable, but if it passes, it's definitely good.

Do you run the test twice or more with each setting to compensate for this?


On a semi-unrelated note: do you test PLL voltage all the way from 1.5 to 1.9, and VCCIO all the way from 1.0 to 1.2? OR do you use a subset of that range?

Quote:
Originally Posted by Schmuckley View Post
ok..i'm betting you're still getting workers failing :: ok..cpul pll =set to 1.835-1.9
I'm pretty sure that I'm not getting workers failing. Even looking at the P95 logs shows no failures. The computer just BSODs. Also, if you look at my runs, you'll see that P95 doesn't last very long in that PLL range. Though I guess I'm going to re-run everything with the 1344 blend (which should be faster!)

Quote:
vccio(vtt)=1.12-1.15 and..i'm thinking it's your ram ..running @ 1333 with 1866 timings..check into that.set manually if you have to..use cpu-z to get the correct timings..
I set the timings manually to be the 1866 timings (which are 9-10-9-27-2T). I'll set the speed back up to 1866 and continue testing. That sounds like two votes for me to stop underclocking.
Edited by Nick2253 - 11/4/11 at 3:00pm
post #34 of 45
Thread Starter 
Whoops, double post again. More OCN bugs...
post #35 of 45
don't forget to raise your dram volts! ::: umm..with my mobo..it likes 1.845..and 1.13
 
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post #36 of 45
Thread Starter 
Quote:
Originally Posted by Schmuckley View Post
don't forget to raise your dram volts! ::: umm..with my mobo..it likes 1.845..and 1.13
I have my RAM right now set with complete stock settings, including voltage. The only I lowered was the frequency, from 1866 to 1333. Which I will raise back up once I get home and get back to OCing

And what volts are you referring to? PLL and VCCIO?
post #37 of 45
You can check all your voltages in windows using hwinfo32.
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post #38 of 45
So what ever happened with this? Success? Too busy playing games @ 5ghz?
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post #39 of 45
Thread Starter 
Quote:
Originally Posted by evensen007 View Post

So what ever happened with this? Success? Too busy playing games @ 5ghz?

I wish tongue.gif

I'm still working at it. Based on munaim's suggestion, I'm running through every PLL step available from 1.5 to 1.8. It takes a while, and I don't have that much time to do it biggrin.gif

I recently found a really stable PLL voltage, but I can't get it to be long-term stable when I do a standard blend test (currently at offset 0.1V = 1.47 to 1.475V). At 1.75625V PLL, I can pass 30mins+ of both 1344 and 1792 blend without BSODing, but I can't got more than about 3 hours of normal blend before it 124s. I think my problem has something to do with me VCCIO voltage, and that's next on my list. When I set my VCCIO to 1.1 or lower, then my computer has problems starting up. The mobo hangs with the VGA LED lit, and I have to hit the "reset" button in order to get it to restart. Sometimes I have to do this two or three times (or more), but it eventually always POSTs successfully. When I test with, for example, 1.15 VCCIO, then I usually get another hour out of the blend test, and I rarely have to hit "reset" to get the mobo to POST. I'm thinking that if I may need to tweak the offset, the VCCIO, or the DRAM voltage to get it stable. My RAM is stock speced at 1866MHz @ 1.5V, but with such a high OC, it may need a little more juice, or I might drop it down to 1600MHz.

As always, if anyone has any comments, suggestions, or questions, please post!
post #40 of 45
I love your persistence Nick! Most people would have given up a LONG time ago. Keep us posted!
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