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Windows 7: BSOD roughly once a day (0x0000001e)

19 Mar 2015   #1

Windows 7 Ultimate x64 (SP1)
BSOD roughly once a day (0x0000001e)

Most days, and usually just overnight, my computer will BSOD with a DRIVER_IRQL_NOT_LESS_OR_EQUAL. I'm not running any particular programs overnight, and it doesn't happen *every* day, but probably about 3 out of 4 days.

I grabbed the most recent drivers for my computer (to the best of my knowledge) and got all the Windows updates, but it doesn't seem to have helped.

The basic details are below, and I've attached the DM logs and a screenshot.

(I've noticed that while the BSOD is showing, my fans run at full speed. Any idea why? It doesn't seem necessary.)

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.
Locale ID: 1033

Additional information about the problem:
BCCode: 1e
BCP1: 0000000000000000
BCP2: 0000000000000000
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:

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My System SpecsSystem Spec
19 Mar 2015   #2

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

BugCheck 1E, {0, 0, 0, 0}

*** WARNING: Unable to verify timestamp for iaStorA.sys
*** ERROR: Module load completed but symbols could not be loaded for iaStorA.sys

Probably caused by : iaStorA.sys ( iaStorA+63aa8 )

Followup: MachineOwner
    Image name: iaStorA.sys
    Timestamp:        Tue Aug 07 21:13:10 2012 (5021378E)
The BSOD is caused by Intel Rapid Storage. And it is used as the RAID setup here.
Name    Intel(R) C600 Series Chipset SATA RAID Controller
Driver    c:\windows\system32\drivers\iastora.sys (, 561.96 KB (575,448 bytes), 4/8/2013 7:32 AM)
I personally believe that RAID is always problematic, but sometimes it is necessary depending on the usage of the computer. So it is always better to get rid of it. And that is the only feasible long term solution. But the entire process is destructive,you will need to disable RAID in the BIOS and then do a clean reinstall of windows with AHCI controllers.

Not suggesting to follow it at this very initial stage. As the driver is old, let us see how a driver update goes. Go to Drivers & Downloads | Dell US and search for any possible upload to the Intel Rapid Storage Technology RAID driver. Apply the update. See how it goes.

Let us know the result. Further actions will be needed if nothing is changed.

Two more things ....
You dont need so many startup items. Free up the startup. Windows does not need any other program to auto start with it, but the auto start programs often conflicts and causes various problems including BSODs.
  1. Click on the Start button
  2. Type “msconfig (without quotes), click the resulting link. It will open the System Configuration window.
  3. Select the “Startup” tab.
  4. Deselect all items other than the antivirus.
  5. Apply > OK
  6. Accept then restart.
Daemon Tools, Alcohol 120% and Power Archiver Pro uses SCSI Pass Through Direct (SPTD), which is a well known BSOD causer. Uninstall Daemon Tools at first. Then download SPTD standalone installer from, and execute the downloaded file as guided below :

  • Double click to open it.
  • Click this button only:
  • If it is grayed out, as in the picture, there is no more SPTD in your system, and you just close the window.
My System SpecsSystem Spec
19 Mar 2015   #3

Windows 7 Ultimate x64 (SP1)

Thanks, I've installed the newer driver and removed most of the startup items. I'll see how that goes for the next couple days.
My System SpecsSystem Spec

01 Apr 2015   #4

Windows 7 Ultimate x64 (SP1)

The Dell page didn't seem to have the right version of the driver. Went to Intel's page instead and found it. Everything seems OK now, thanks!
My System SpecsSystem Spec
01 Apr 2015   #5

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

Good news.

Now let the thread be open for somehow six months. If the issue does not bounce back within that time, then you may mark it as solved. :)
My System SpecsSystem Spec

 BSOD roughly once a day (0x0000001e)

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