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124 BSOD when PC is idle

post #1 of 33
Thread Starter 
Hi guys,

Just wondering if anyone could assist in troubleshooting the cause of a 124 BSOD my computer is experiencing. Quite strange and frankly i'm miffed as to how to resolve it.

System Specs:
Asus P5Q Deluxe
4 x 2GB DDR 1066 Gskill PI running at 1076 with stock timings
Q9550 E0 @ 3.8ghz
Corsair HX 620w
Asus 580GTX

Overclock
8.5x multi
448mhz fsb
Memory @ 1076mhz 5,5,5,15
vcore @ 1.3935v in bios
fsb term 1.28v
North Bridge 1.40v
NB GTL 0.685
cpu gtls of 0/1 720, 1/2 725
C1E is disabled, as too is speedstep etc
LLC on
CPU margin enhancement - disabeld

PC is 100% stable when under load, confirmed with prime95, occt, ibt, and various other apps. With over 48 hours of benchmarking, it's proven to be stable under load.

Problem is, this PC will randomly BSOD when idle. The BSOD is always 124 error, and from what i've read this is basically limited to the CPU/vtt.

I have tried raising CPU vcore, all the way from 1.31v - 1.393650.

FSB term from 1.26 - 1.40

Messed with CPU GTL refs

Tried disabling LLC, which did not help. I found even at 1.4v in Bios, and 1.336ish under load, the machine was still not stable.

The PC seems rock solid under heavy load. Yet if i boot the computer, login, then walk away. I can be garunteed that when i come back after an extended period of time, ie a few hours - day, the machine would have
post #2 of 33
follow this thread . . .

http://www.overclock.net/intel-cpus/...l#post12310318
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Second Intel Rig
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post #3 of 33
Well firstly I would ask, does this happen if your PC is at STOCK. If not then obviously there is a setting with you OC that is not stable. You can run all the tests in the world and have them tell you that you are stable..but if you can not BSOD at STOCK but you do at an Overclock, then obviously a changed setting is causing the issue.
post #4 of 33
Thread Starter 
Quote:
Originally Posted by rdr09 View Post
Yes i have

Done as much reading as possible here and on various forms like ocau anandtech to diagnose this.

No luck.

Quote:
Originally Posted by ENTERPRISE View Post
Well firstly I would ask, does this happen if your PC is at STOCK. If not then obviously there is a setting with you OC that is not stable. You can run all the tests in the world and have them tell you that you are stable..but if you can not BSOD at STOCK but you do at an Overclock, then obviously a changed setting is causing the issue.
Problem does not occur @ stock voltage

Only yesterday i dropped my CPU's multi from 8.5 - 6.5, had no issues running at 2.7ghz.

have tried VTT from 1.26 - 1.40, vcore of 1.31 - 1.45v, and PPL of 1.50 - 1.58.

Also worth noting i have enabled C1E and CPU + PCIE Spread Spectrum. No improvement
Edited by matthew87 - 11/2/11 at 4:01am
post #5 of 33
I had this problem before. Back year ago with my 775 P5N-E SLI.

While using it, i got random BSODs telling me that IRQL is not less or equal. I chaged ram, still the same thing.

In the end i changed the mobo and hey presto! Everything worked fine.
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post #6 of 33
never owned that mobo, so all i can do is help search . . .

http://www.overclock.net/intel-cpus/...5q-deluxe.html
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Second Intel Rig
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post #7 of 33
Try using BSOD Veiwer, it will show the last file accessed that caused the BSOD, it could be a driver conflict.

http://www.nirsoft.net/utils/blue_screen_view.html
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post #8 of 33
Quote:
Originally Posted by matthew87 View Post
Yes i have

Done as much reading as possible here and on various forms like ocau anandtech to diagnose this.

No luck.



Problem does not occur @ stock voltage

Only yesterday i dropped my CPU's multi from 8.5 - 6.5, had no issues running at 2.7ghz.

have tried VTT from 1.26 - 1.40, vcore of 1.31 - 1.45v, and PPL of 1.50 - 1.58.

Also worth noting i have enabled C1E and CPU + PCIE Spread Spectrum. No improvement
C1E could be the issue here. Disable that and see what happens. C1E can cause issues with Overclocking as it is part of Speedstep with regards to downclocking/reducing voltage. Its a power saving feature which can cause issues.
post #9 of 33
Thread Starter 
Quote:
Originally Posted by ENTERPRISE View Post
C1E could be the issue here. Disable that and see what happens. C1E can cause issues with Overclocking as it is part of Speedstep with regards to downclocking/reducing voltage. Its a power saving feature which can cause issues.
I have traditionally had Spread spectrum, C1E, and speed step disbaled.

Some people have recommended i enable them to test

Either way i cannot get the OC stable at idle with them either disabled or enabled.
Edited by matthew87 - 11/2/11 at 4:16pm
post #10 of 33
Thread Starter 
Quote:
Originally Posted by 10acjed View Post
Try using BSOD Veiwer, it will show the last file accessed that caused the BSOD, it could be a driver conflict.

http://www.nirsoft.net/utils/blue_screen_view.html
Oddly enough i've already had a look at that. I've been getting alternating errors with nt kernel and HAL.dll from memory.

Does that help
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