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124 BSOD when PC is idle - Page 3

post #21 of 33
Try to leave GTLs stock, they are very hard to get right.
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post #22 of 33
try this i had same issue when idle

CPU C1E set that to enable
CPU C3 Report Disable
CPU C6 Report Disable
post #23 of 33
Thread Starter 
Quote:
Originally Posted by kieran13 View Post
try this i had same issue when idle

CPU C1E set that to enable
CPU C3 Report Disable
CPU C6 Report Disable
I do not believe 775 motherboards, or at least mine, has options for C3 and C6. I do have C1E, i will test that tonight.

Quote:
Originally Posted by jasjeet View Post
Try to leave GTLs stock, they are very hard to get right.
I'll set them back to auto and see how it goes.

However from what i've read and experienced, manually configuring the GTLs does seem required particularly at higher overclocks. Perhaps however the motherboard is smart enough to adjust these automatically.
Edited by matthew87 - 11/7/11 at 2:32pm
post #24 of 33
Quote:
Originally Posted by matthew87 View Post
However from what i've read and experienced, manually configuring the GTLs does seem required particularly at higher overclocks. Perhaps however the motherboard is smart enough to adjust these automatically.
You should always configure your GTL's from a stable OC, so if you can get 100% stable at a lower OC then start adjusting the GTL's one at a time and test (usually 20 - 25 passes IBT will do) you will find that there will only be 1 or 2 settings per GTL will be stable.
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post #25 of 33
From my experience, an idle random BSOD generally comes back to your ram.
I managed to fix my 124 Bsod.
Try this for me.
Set your bios up to a state where you were happy and stable in prime95 etc.
Now once you have done this and re stressed again, go back to your DRAM voltage and drop it by .05v. So if your @ 1.65, lower it to 1.6 or if your @ 1.5, lower to 1.45.
Re stress. If it doesnt crash, your 124 random bsod wont happen anymore, if it does crash while stressing, raise it by .01v increments till its good.


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Edited by Denim-187 - 11/8/11 at 11:12am
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post #26 of 33
Thread Starter 
Quote:
Originally Posted by 10acjed View Post
You should always configure your GTL's from a stable OC, so if you can get 100% stable at a lower OC then start adjusting the GTL's one at a time and test (usually 20 - 25 passes IBT will do) you will find that there will only be 1 or 2 settings per GTL will be stable.
Good advice, thank you.

Here's a few question about GTLs i hope you can answer.

From my understanding the GTLs are not dependant on the CPU's clock or multi, but rather FSB term voltage.

So if i have a overclock 100% stable at say 3.6ghz, and all i do is raise my motherboard's FSB and cpu vcore to compensate, should the GTLs need to be adjused if vtt stays the same?

To put it another way. If my VTT remains the same, should the GTLs also remain the same?

Also is it possible for me to have my GTLs wrong, even though i can pass hours worth of stress testing?

is it possible i can pass these tests, even for prolonged periods of time, but the GTLs still be off?


Stress tested the machine last night.

8.5x multi
448mhz FSB
3.83ghz overclock
1.36250v vcore in bios
0.645 GTL (0/2)
0.655 GTL (1/3)
1.28 VTT
PLL 1.56
NB 1.32
NB GTL set to Auto
C1E disabled
Speed step disabled

These settings have provided me with 8 hours prime blend stable. 4 hours OCCT stable. 50 passes of Intel Burn Test on high stable. 2 hours P59 small FFT stable, and 2 hours large 2000k - 4000k fft stable with 2gbs of ram.

I guess based on this it's fair to assume my CPU can actually do 3.8ghz? I just haven't nailed some of the settings thus causing the 124?

I haven't yet tested this overclock to see if i can cause the 124, but i'm going to say it will.

I found if i lowered the gtls any more, the machine would blue screen. Setting the GTLs to auto also makes the PC unstable. I certainly need these to be manually configurable.

If i have the gtls at say 0.640 and 0.655 - BSOD, same as 0.645, 0.660, etc, etc. So i feel i've hit the sweet spot again.

That said previously, as you can see on the my first post. I had my GTLs at 0.720 and 0.725 with the same VTT (1.28) and that was 100% stress test stable too..... ***

Quote:
Originally Posted by Denim-187 View Post
From my experience, an idle random BSOD generally comes back to your ram.
I managed to fix my 124 Bsod.
Try this for me.
Set your bios up to a state where you were happy and stable in prime95 etc.
Now once you have done this and re stressed again, go back to your DRAM voltage and drop it by .05v. So if your @ 1.65, lower it to 1.6 or if your @ 1.5, lower to 1.45.
Re stress. If it doesnt crash, your 124 random bsod wont happen anymore, if it does crash while stressing, raise it by .01v increments till its good.
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Thanks, i will try. All my research and reading suggested this was a VTT/Vcore issue, glad to see someone has had instances where it is not.... might explain why i can't identify the cause of this.

In regards to memory voltages.

At stock speeds, 1066mhz, 5,5,5,15 CAS, this memory is rated between 2.0 and 2.1v by Gskill.

I have tried voltages rainging from 2.0 - 2.10 and that yielded no improvement. I have heard that these Asus motherboards tend to overvolt the memory by up to .05v, as such i've currently been running the memory at 2.04. So currently i'm running the memory right in the middle of its rated overated voltages.

I'll try undervolting and overvolting it a bit. I assume 1.9v - 2.2v this would be a wide enough range?

I have also run 8 hours of memtest86 on this PC to test the FSB and memory were stable before i started raising the CPU's multi. The ram did pass memtest86 without a problem @ 1077mhz with stock cas timings.

That said, i have heard that memtest86 is not that great at identifying ram faults related to overclocking. It's really only good for identifying hardware faults within the ram modules. It doesn't replicate 'real world' testing, as it doesn't stress the NB, CPU, and bandwidth like a PC would be in normal and intence operation such as Prime95 or benchmarking. As such faulty memory configurations that only show when the CPU and north bridge are hammering the ram dont show in memtest.

Also just for note i have also tried dropping the ram back as low as 895mhz, still same 124 bsod.
Edited by matthew87 - 11/8/11 at 2:31pm
post #27 of 33
124 is no doubt memory related, could be mixed with other things but it is always a member.
My memory is rated to run @ 1.65v 8-11-8-28 2300mhz.
@ 1.65v i was stable in all my stress testing, come idle? 124 bsod.
At first i thought is was vtt, but my vtt was already @ 1.55v which is above the limit on SB but i did try from 1.0 to 1.22v. Still kept getting idle bsod.
Dropped my DRAM from 1.65 to 1.6v, problem solved.
Start at 1.8v DRAM and c what happens.




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post #28 of 33
Thread Starter 
Thanks mate, what you're describing is identical to what i'm experiencing.

Fingers crossed.

Will report back tonight.
post #29 of 33
C1E and Spread spectrum could be your culprit..disable those..IMHO speedstep is already enough if you still want some power saving features on..

on X58 platform error 124 refers to either too much or lacking some VTT or IMC voltage..does not know if its the same for the LGA775 platform..
Edited by kairi_zeroblade - 11/8/11 at 7:00pm
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post #30 of 33
Thread Starter 
Quote:
Originally Posted by kairi_zeroblade View Post
C13 and Spread spectrum could be your culprit..disable those..IMHO speedstep is already enough if you still want some power saving features on..
Just to clarify

C1E = disabled, although have tested on

Speed Step = disabled

Spreadspectrum for both CPU and PCIE = disabled, although have tested with on

So i'm confident its not any of these, unless i need to figure out some magic combination. Ie speed steep off, C1E on, PCIE on, CPU off. I've tried both all on, all off, spreadspectrums on with C1E and speedstep off, and visa versa
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