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i7 3820 - 4820 Overclock Club - Page 113

post #1121 of 6491
Quote:
Originally Posted by kizwan View Post

<< I'm still learning. smile.gif Yeah, your current overlock using Strap 125 is much better. You can increased the multiplier to x37 for 4.625GHz OC. You also can use Intel Burn Test (IBT) with "Very High" & 10 passes settings for stress testing. With IBT I can know much faster whether the VCORE is too low or not.

I won't bother pushing it any further, x36 is fine for me.

When I ran the prime95 tests before I was only running the Small FFTs, seems 1.3v vCore was enough to run that for over 30mins before I stopped it without a problem, however.... after playing some BF3 I decided to run the Small FFTs again, another 30mins and no problem. I then tried the In-place large FFTs test, within 20 seconds BSOD.

Restarted and tried again, Small went fine for 5mins before I stopped, Large BSOD after 20 seconds.

I then upped the vCore to 1.320v and tried again.

Small went fine for 5mins before I stopped, Large went fine for 32mins before I stopped.

The hottest core during the tests reached 79c I can live with that, it sits around 33c idle.

I am about to download IBT and see how that goes, assuming it goes well I will let prime95 run overnight. and report *hopefully* my success tomorrow smile.gif

Amazing how overclocking can get ya excited lol.
post #1122 of 6491
I so want this chip just to overclock it to the moon and back, enjoy them clocks people!
post #1123 of 6491
Quote:
Originally Posted by Scrapy View Post

Amazing how overclocking can get ya excited lol.

Considering how slow paced (my) overclocking is, yeah, it is amazing how exciting it is tongue.gif

Right, a small update. I think I've settled on 24/7 OC, provided it survives a night of stress testing and I don't change my mind regarding RAM.

2456715.png <-- Clicky

344ur1k.jpg

Voltages are a bit higher than I'd hoped for, but I haven't been able to decrease it. This has resulted in temps being a bit higher than what I wanted too.

Reason temps and voltages have gone up is because I wanted to get RAM running at 2000MHz, and it wouldn't run lower. Question is, do I actually gain anything by upping it from 1666MHz? In addition to this, I had to loosen timings a bit, from 9-10-9-27 to what's in the validation picture.

So, reckon I should keep it like this, or go for 1666MHz instead?
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post #1124 of 6491
Hi Guys,

After my first couple of attempts ant an overclock I thought id share my results with you all....
Any tips and hints on how to fine tune this would be great, after reading this thread I think my temps might be a bit high.
I ran some prime95 test and got the FATAL ERROR: Rounding was 0.5, expected less than 0.4.
Strange thing is I don't get it every time and ran Intel extreme tuning on the cpu and memory and got nothing (temps were sitting around 65 with the H80 on full whack).


Al

post #1125 of 6491
*UPDATE*

Well I ran IBT very-highx10 and it was fine, then prime95 blend and went to sleep, when I woke up I saw a BSOD and swore loudly.. lol

After checking event logs I saw the system got the BSOD about 2 hours in.

So I went back into the bios and upped the vCore yet again, this time to 1.340v, and then let prime95 run the blend test again.

And I think finally its stable!! biggrin.gif



12 hours and 15 mins.

The high temps are due to me turning on a heater in the room to warm it up to simulate a hot day, because its fairly cold here atm.

Hopefully this is all good to go now..... There is one thing I'm not sure about, The torture test workers seemed to have gotten out of sync with each other over time.... is that something to be concerned about or is that normal?

*EDIT*

The pc has been stable all day, although I wish there was some way to run it with a lower vCore... I have been reading some different threads and see people saying they have 4.5ghz, 125x36 under 1.3v, one guy mentions being able to go as low as 1.230v.

The temps I am unsure about, 79c seems a bit much considering how the weather is cold. the hottest core reached 57c after a couple rounds in battlefield3

heck even my gtx-680 maxed out at 67c after playing some battlefield3 and benchmarking now that I turned its fan up to 60%, and currently idling at 23-24c.
Edited by Scrapy - 7/31/12 at 2:24pm
post #1126 of 6491
Quote:
Originally Posted by Scrapy View Post

*UPDATE*
Well I ran IBT very-highx10 and it was fine, then prime95 blend and went to sleep, when I woke up I saw a BSOD and swore loudly.. lol
After checking event logs I saw the system got the BSOD about 2 hours in.
So I went back into the bios and upped the vCore yet again, this time to 1.340v, and then let prime95 run the blend test again.
And I think finally its stable!! biggrin.gif

12 hours and 15 mins.
The high temps are due to me turning on a heater in the room to warm it up to simulate a hot day, because its fairly cold here atm.
Hopefully this is all good to go now..... There is one thing I'm not sure about, The torture test workers seemed to have gotten out of sync with each other over time.... is that something to be concerned about or is that normal?
*EDIT*
The pc has been stable all day, although I wish there was some way to run it with a lower vCore... I have been reading some different threads and see people saying they have 4.5ghz, 125x36 under 1.3v, one guy mentions being able to go as low as 1.230v.
The temps I am unsure about, 79c seems a bit much considering how the weather is cold. the hottest core reached 57c after a couple rounds in battlefield3
heck even my gtx-680 maxed out at 67c after playing some battlefield3 and benchmarking now that I turned its fan up to 60%, and currently idling at 23-24c.

All chips are different. Are you going to be folding? my chip was 12 hours prime stable but would BSOD when folding; I ended up having to use AIDA64 to torture test for stability.

Either way just drop your vcore run prime/aida for 30 minutes and if it passes keep going down until it fails. Once it fails put it back to the previous setting and extend your torture testing.
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post #1127 of 6491
Quote:
Originally Posted by Reptile View Post

All chips are different. Are you going to be folding? my chip was 12 hours prime stable but would BSOD when folding; I ended up having to use AIDA64 to torture test for stability.
Either way just drop your vcore run prime/aida for 30 minutes and if it passes keep going down until it fails. Once it fails put it back to the previous setting and extend your torture testing.

Did not plan on doing any folding, however I might aswell let it run once in awhile.

Decided to lower my vCore down to 1.325 first and work my way up instead of down, since I know it lasted at least 2 hours at 1.320 at which point it got the BSOD that made me raise it to 1.340.

I also have been thinking more about the temps, something just wasn't right.... I ended up re-mounting the heatsink on the cpu, there was a noticeable drop in temp over a short test varying between the cores.

I let the pc sit idle until lowest temps attained and then ran prime95 for 3 mins on Large FFTs

Before remount = 71c - 66c - 68c - 70c
After remount = 66c - 60c - 66c - 68c

Maybe I will need to give it another shot and see if I can bring the cores closer together, however I'm unsure if there is enough ArcticSilver5 compound left to get the job done, will see how it goes.
Edited by Scrapy - 7/31/12 at 9:39pm
post #1128 of 6491
Guys, what am I doing wrong here? confused.gif


1343814582-clip-350kb.jpg
post #1129 of 6491
Quote:
Originally Posted by Kuat View Post

Guys, what am I doing wrong here?

Well maybe someone else could provide more info, however from what I can see, your vCore is a bit high for that overclock, you might want to lower it.. OR, keep it as is, and just change your strap/bclk to 125 and multi to 36, this will give you 4.5ghz, and should give a FSB of 5ghz.

that should give some results.... however I'm not too advanced with overclocking, so keep that in mind when deciding on what to do... maybe wait for another response

*EDIT*
just incase you have the vCore on auto, you should change to manual as auto will set it higher than needed.

1.240 - 1.280 should be right for the overclock you have currently
1.320 - 1.340 should be right for 125x36 @ 4.5ghz with fsb 5ghz

your chip wont be the exact same as mine so could use more or less voltage.
Edited by Scrapy - 8/1/12 at 3:07am
post #1130 of 6491
Quote:
Originally Posted by Kuat View Post

Guys, what am I doing wrong here? confused.gif
1343814582-clip-350kb.jpg

Install Service pack 1 for Windows.
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