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Discussion Starter · #1 ·
Hello,

I am having a nightmare with BSOD's while the CPU is on idle, but it only happens after a few hours of being asleep, I wake up to find the computer has BSOD' after a couple of hours of idling on the CPU ([email protected] on the GPU's).

Here's my OC settings for 4.7GHz:











What do you guys think? These BSOD's are driving me nuts, I can run Prime 95 on 1344 or 1792 FFT's for over an hour just fine but it just gives a BSOD at night... Funny is the CPU is on idle, only the GPU's are being stressed with [email protected] at night, and Battlefield 3 is minimized as I idle on my own server to keep it filled 24/7.

Also, here are the last 2 mini dump files created in the last 2 BSOD's I got:

http://www.mediafire.com/?ak3j36zgdlc5392

Sometimes it's 9C BSOD, sometimes 124, and sometimes 101...

Any help would be appreciated. Last change I did this morning was boosting VTT and VCCSA from ~1.180v to ~1.190v and also the CPU Vcore Offset Voltage from +0.040 to +0.045 to see if that gets rid of the idle BSOD's... Although I don't see how more vcore would help for idle since I can easily run Prime 95, [email protected] or gaming without any BSOD's.

Edit:

The issue is definitely fixed, looks like disabling C3/C6/C7 on BIOS helped get rid of these idle BSOD's!
wheee.gif


Big thanks to $ilent and CloudX for suggesting it!
smile.gif
 

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Idle 124 bsod on sandy and ivy is a real PITA, I had a nightmare with this when I was trying to get my 2700k stable.

Solution is its down to c1e, c3 and c6 states.

edit:

Just found the 2700k thread I was referring to, heres the settings I used to get rid of those pesky idle 124 BSOD.



This is in conjunction with using manual voltage, as apposed to offset. Sometimes offset is more trouble than its worth, I just prefer to run manual as I fold alot and leave the c stats and c1e to auto.
 

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Discussion Starter · #3 ·
I want to keep Offset voltage though to make it underclock and undervolt on idle..

I remember having this issue on my old 2600k and fixing it by dropping LLC (For example from Very High to High, or High to Medium), but that doesn't seem to have helped here...

We'll see if the +0.005 Offset voltage bump I did this morning helped or not, I hope I can get rid of these issues, I'm tired of waking up every morning to find my computer had a BSOD.
 

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If you want to keep offset volt, keep these settings a try Kcue:



If your using c1e and speedstep, try lowering the LLC setting but increase cpu vcore so that it doesnt drop the vcore as low.
 

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Discussion Starter · #5 ·
May I ask what C3 and C6 Report do? If I disable those, will the CPU still downclock and undervolt on idle?
 

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I think it should do, give it a shot in windows. I dont know thier exact function; I just know they are part of power saving features on SB and IB, along with c1e, speedstep.
 

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Discussion Starter · #8 ·
Quote:
Originally Posted by UNOE View Post

You might as well bump it up +0.010 more volts don't even stress test it just run it like that. You don't have to test it now since you already tested you just want to get rid of the random Bsod. I still think you should consider deleting the storage drivers as well.
That's what I did this morning, we'll see if that helped.
 

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Quote:
Originally Posted by kcuestag View Post

I want to keep Offset voltage though to make it underclock and undervolt on idle..
I remember having this issue on my old 2600k and fixing it by dropping LLC (For example from Very High to High, or High to Medium), but that doesn't seem to have helped here...
We'll see if the +0.005 Offset voltage bump I did this morning helped or not, I hope I can get rid of these issues, I'm tired of waking up every morning to find my computer had a BSOD.
Dude i feel for ya mate BSOD'S on idle would do my head in
sozo.gif
What setting do you run on vscca LLC
headscratch.gif
 

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Discussion Starter · #10 ·
Quote:
Originally Posted by HOMECINEMA-PC View Post

Dude i feel for ya mate BSOD'S on idle would do my head in
sozo.gif
What setting do you run on vscca LLC
headscratch.gif
VCCSA LLC is set to High and 140%.

Honestly don't know what I should choose there.
redface.gif


Edit:

Maybe I should drop it to Medium and 130%? What you think?
 

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Quote:
Originally Posted by kcuestag View Post

VCCSA LLC is set to High and 140%.

Honestly don't know what I should choose there.
redface.gif


Edit:

Maybe I should drop it to Medium and 130%? What you think?
You could try it but when I am O/C 'ing I up voltages not lower em
frown.gif


Quote:
Originally Posted by $ilent View Post

Im confident your problems are down to the powerbsaving features i mentioned earlier.
The only "Power saving features" I use are sidestep and all c-states enabled with manual vcore settings
 

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Quote:
Originally Posted by $ilent View Post

Yes its the combination of power saving features that usually causes idke/random bsod.
Also too ive noticed it mainly occurs when offset voltages are in place
 

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Discussion Starter · #15 ·
Well it looks like Prime 95 v27.9 isn't a good version to test OC stability. I downloaded v27.7 and with same test method (1792 FFT's and +90% of RAM usage) I got a 101 BSOD within a few minutes using the OC profile I had yesterday, while before I could easily run it for an hour on v27.9.

So it looks like it wasn't really stable, I'm now running v27.7 let's see how it goes with an extra +0.010 Offset Voltage.
thumb.gif
 

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Disable c3/c6. It will still down clock and lower the volts on idle. This has been known for a while for SB and $ilent is dead on. Don't add anymore volts from where you knew it was stable.
 

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Discussion Starter · #17 ·
Quote:
Originally Posted by CloudX View Post

Disable c3/c6. It will still down clock and lower the volts on idle. This has been known for a while for SB and $ilent is dead on. Don't add anymore volts from where you knew it was stable.
Interesting, will give this a try.
 

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Discussion Starter · #18 ·
Should I also disable C7 or just C3/C6?

Edit:

I disabled C3/C6/C7 Report on BIOS and while it does undervolt to like 0.9v on idle, it doesn't seem to be downclocking.

Nevermind it does now.
biggrin.gif
 

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Yea it should down click still. I guess we will see how it does after idling for a while. The sandy stable thread is a gold mine of info about the c states and more.
 

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Quote:
Originally Posted by CloudX View Post

Disable c3/c6. It will still down clock and lower the volts on idle. This has been known for a while for SB and $ilent is dead on. Don't add anymore volts from where you knew it was stable.
It wasn't stable though it bsod with 27.7 and at idle that's not stable. But Yes I only run with C1E enabled myself. C6 is funky with SSD's
 
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