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Windows 7: BSOD "driver_irql_not_less_or_equal" and "irql_not_less_or_equal"

15 Feb 2012   #11
voxivoid

Windows 7 32bit
 
 

Quote   Quote: Originally Posted by usasma View Post
Quote:
FATAL ERROR: Rounding was 0.49609375, expected less than 0.4
Hardware failure detected, consult stress.txt file.
This is an error.
Now, run the following 3 Prime95 tests:
- Blend
- Large FFT's
- Small FFT's

Time how long it takes for an error to appear (for each test).
Crashes count as an error
Let us know the results and we'll figure out if it's - CPU cache, memory controller (on CPU), or RAM
that error appeared when I was doing Blend test. The average CPU temperature was 55șC. Now I'm going to test those two, it is necessary to let it finish or just stop when an error appears?


My System SpecsSystem Spec
.
15 Feb 2012   #12
usasma
Microsoft MVP

 
 

Stop when the error appears.
Some people state that the error timing changes if you let the system rest - so try to run them all at once.

You still need the time for it to error in Blend,
then the time for it to error in Large FFT's and the time for it to error in Small FFT's

If Blend is quickest, then it's most likely your RAM that's the problem.
If either of the others are the quickest, then it's likely that your CPU is to blame.

If it's your CPU, then try the CPU stress tests from my hardware diags page. That's to confirm the problem so that you're not purchasing a new CPU without being sure of the errors.
My System SpecsSystem Spec
15 Feb 2012   #13
voxivoid

Windows 7 32bit
 
 

Those two errors were on CPU #1 (don't know if this information is needed)

Blend - 61 tests in 2 hours, 7 minutes - 1 errors, 0 warnings
Large FFT's - 20 tests in 33 minutes - 1 errors, 0 warnings

[Wed Feb 15 17:14:52 2012]
Self-test 512K passed!
Self-test 512K passed!
Self-test 512K passed!
Self-test 512K passed!
[Wed Feb 15 17:31:24 2012]
Self-test 8K passed!
Self-test 8K passed!
Self-test 8K passed!
Self-test 8K passed!
[Wed Feb 15 17:46:31 2012]
Self-test 576K passed!
Self-test 576K passed!
Self-test 576K passed!
Self-test 576K passed!
[Wed Feb 15 18:02:37 2012]
Self-test 12K passed!
Self-test 12K passed!
Self-test 12K passed!
Self-test 12K passed!
[Wed Feb 15 18:17:49 2012]
Self-test 672K passed!
Self-test 672K passed!
Self-test 672K passed!
Self-test 672K passed!
[Wed Feb 15 18:33:05 2012]
Self-test 20K passed!
Self-test 20K passed!
Self-test 20K passed!
Self-test 20K passed!
[Wed Feb 15 18:49:09 2012]
Self-test 800K passed!
Self-test 800K passed!
Self-test 800K passed!
Self-test 800K passed!
[Wed Feb 15 19:05:32 2012]
Self-test 28K passed!
Self-test 28K passed!
FATAL ERROR: Rounding was 0.49609375, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Self-test 28K passed!
[Wed Feb 15 19:20:59 2012]
Self-test 960K passed!
Self-test 960K passed!
Self-test 960K passed!
[Wed Feb 15 19:37:11 2012]
Self-test 40K passed!
Self-test 40K passed!
Self-test 40K passed!
[Wed Feb 15 19:53:34 2012]
Self-test 1120K passed!
Self-test 1120K passed!
Self-test 1120K passed!
[Wed Feb 15 20:54:21 2012]
Self-test 448K passed!
Self-test 448K passed!
Self-test 448K passed!
Self-test 448K passed!
[Wed Feb 15 21:10:23 2012]
Self-test 128K passed!
Self-test 128K passed!
Self-test 128K passed!
Self-test 128K passed!
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.

PC is powered on since the first test. Now I'm going to do last one ( Small FFT's), then I update this thread, thanks
My System SpecsSystem Spec
.

15 Feb 2012   #14
usasma
Microsoft MVP

 
 

Small FFT's generally points to CPU cache and very little RAM
Large FFT's points to RAM (limited due to the in-place restriction) and to memory controller
Blend points to RAM and memory controller

If it's RAM, then Large FFT's should be slower to error than Blend
If it's CPU, then Large FFT's should be faster to error than Blend (which is what you have right now)
If it's CPU cache, then Small FFT's should be faster to error than Large FFT's or Blend

Memory controller in i3 CPU's is onboard the CPU - not on the motherboard

So, you've either got a memory controller issue on the CPU (Large FFT's make this most likely)
or, if Small FFT's are faster, it's more likely to be CPU cache.

Run several of the CPU stress tests from here to ensure we've properly identified a problem with the CPU: http://www.carrona.org/hwdiag.html#cpustress

It doesn't matter to us if it's the cache or the controller - there's no fixing a CPU. As long as it fails several of the stress tests you can be reasonably sure that it's the CPU that's at fault.
My System SpecsSystem Spec
15 Feb 2012   #15
voxivoid

Windows 7 32bit
 
 

Update:
Small FFT's -> no errors!

So it means that it is a CPU problem right? I've got to take it to the store for change.


Thanks usasma!
My System SpecsSystem Spec
15 Feb 2012   #16
usasma
Microsoft MVP

 
 

NO NO NO!!! You MUST run several of the CPU stress tests to prove that it's the CPU.
Then it'll be time to get a new CPU.
My System SpecsSystem Spec
16 Feb 2012   #17
voxivoid

Windows 7 32bit
 
 

Intel Processor Diagnostic Tool results
My System SpecsSystem Spec
16 Feb 2012   #18
usasma
Microsoft MVP

 
 

So, the Intel test says that everything is OK.
Either try more CPU stress tests, or we can try Prime95 on the different sticks and slots
My System SpecsSystem Spec
16 Feb 2012   #19
voxivoid

Windows 7 32bit
 
 

I'm going to take computer to the store, they offered me the diagnosis and hardware substitution if it is broken. Thanks for everything usasma!
My System SpecsSystem Spec
30 Mar 2012   #20
voxivoid

Windows 7 32bit
 
 

Hey, it's me again. Some weeks ago i've take it to the store and they have tested everything and there were no errors. I brought it to home again and the bluescreens persist until now. I'm kind of stressing out with this lool, if you can find the problem i'll be pleasured.
My System SpecsSystem Spec
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 BSOD "driver_irql_not_less_or_equal" and "irql_not_less_or_equal"




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