Periodic IRQL_NOT_LESS_OR_EQUAL BSODs

Kasai · Jul 10, 2014

Alright so here's my problem. For the past handful of months I've gotten occasional IRQL_NOT_LESS_OR_EQUAL BSODs. From what I can remember, they all usually occur while playing some game, and as far back as my memory serves, they've never happened while my computer has been idle or while it's been left on overnight.

Regarding my specs:
I do have a i5 2500k overclocked to 4.5ghz. That being said, while applying the overclock a while ago, I did a decent amount of testing with Intel Burn Test and it seemed to pass without any trouble. Of course, I'm aware that this BSOD can be caused by CPU instability. Unfortunately, due to it's very infrequent nature, it's hard to simply remove the OC and test for stability.

I have run memtest for about 2 passes, I plan on running it overnight so it can finish a handful more. But while running those 2 passes I received no errors.

Here's what I was able to obtain from event viewer. I'm not sure exactly how useful it will be though, so if anyone would like me to post something different, just let me know:

The computer has rebooted from a bugcheck. The bugcheck was: 0x0000000a (0x000000000000041e, 0x0000000000000002, 0x0000000000000000, 0xfffff80002eccff4). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 070914-8720-01.

Thanks in advance for any help/attempted help.

Pinhedd · Jul 10, 2014

This is a very, very common symptom of an unstable CPU overclock.

Excessive overclocking and overvolting accelerates CPU degradation and narrows the stable voltage margin. Increasing the CPU voltage and/or reducing that overclock a little bit should solve the problem.

Kasai · Jul 10, 2014

Pinhedd :

What would you consider overvolting for an 2500k? While testing with IBT the voltage never really had to stray much past 1.3 in order to pass the test without crashing.

In any case, I tried dropping the OC to 3.8 and see if I notice anything. Like I said earlier, unfortunately, there have been months between BSODs given my current clock so troubleshooting isn't necessarily the easiest thing to do.

Edit: Alright so after a very small amount of testing that I did after lowering the OC, I possibly found something out.

It seems that I am actually getting better performance upon lowering the clock of my CPU. It's somewhat hard to test considering the only method I've used so far is an MMO where performance can spike at periods for different non-consistent reasons, but is this something that could potentially happen if I had been using a non-stable overclock? To me this seems like something that is very strange but at best I have only a minor working knowledge of the subject. Either that or I'm crazy and it's just all in my head.

Pinhedd · Jul 10, 2014

Kasai :

Pinhedd :

What would you consider overvolting for an 2500k? While testing with IBT the voltage never really had to stray much past 1.3 in order to pass the test without crashing.

In any case, I tried dropping the OC to 3.8 and see if I notice anything. Like I said earlier, unfortunately, there have been months between BSODs given my current clock so troubleshooting isn't necessarily the easiest thing to do.

Edit: Alright so after a very small amount of testing that I did after lowering the OC, I possibly found something out.

It seems that I am actually getting better performance upon lowering the clock of my CPU. It's somewhat hard to test considering the only method I've used so far is an MMO where performance can spike at periods for different non-consistent reasons, but is this something that could potentially happen if I had been using a non-stable overclock? To me this seems like something that is very strange but at best I have only a minor working knowledge of the subject. Either that or I'm crazy and it's just all in my head.

You can take the voltage up to 1.4 volts without much worry. I would not exceed that though. I run my 3960x at 4.5Ghz on 1.325 volts

Kasai · Jul 10, 2014

Pinhedd :

Kasai :

You can take the voltage up to 1.4 volts without much worry. I would not exceed that though. I run my 3960x at 4.5Ghz on 1.325 volts

And now when you say 1.325 do you have it run at a constant or do you use a lower voltage with an offset?

gamerk316 · Jul 10, 2014

Run a memory tester, preferably memtest86+, and see if you get any errors. This BSOD is typical of bad RAM, so I'd do that before doing anything else.

Pinhedd · Jul 10, 2014

Kasai :

Pinhedd :

Kasai :

You can take the voltage up to 1.4 volts without much worry. I would not exceed that though. I run my 3960x at 4.5Ghz on 1.325 volts

And now when you say 1.325 do you have it run at a constant or do you use a lower voltage with an offset?

My Asus motherboard adjusts it automatically, up to the 1.325 at the top turbo bin (which is 45x)

Kasai · Jul 10, 2014

gamerk316 :

I ram memtest86+ overnight and didn't receive any errors. For now, for troubleshooting's sake, I've simply removed the overclock (on the account that I probably don't really need the performance boost for any of the games/programs I'm using) and I'm gonna attempt to see if I get any BSODs in the next few weeks/months.

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