Blue Screen error: DRIVER_IRQL_NOT_LESS_OR_EQUAL

Hi,

You can use Safe Mode as needed to troubleshoot - repeatedly tap F8 as you boot.

Check with ASUStek for updated Chipset drivers (get any BIOS updates while there). Then check

Intel Downloads for the chipset drivers.

iastor.sys = Intel Matrix Storage Manager driver - See your System maker (motherboard maker for

custom built systems) and the chipset maker. This driver could have been driven to fault by other

programs such as Symantec/Norton.

ASUStek Support

http://support.asus.com/

ASUStek Forums

http://vip.asus.com/forum/default.aspx?SLanguage=en-us

ASUStek Drivers

http://support.asus.com/download/download.aspx?SLanguage=en-us

---

Intel Downloads

http://downloadcenter.intel.com/

Intel Matrix Storage Manager - be sure to check for DATE and set for version of Windows and chipset

http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&keyword=%22matrix+storage+manager%22

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Hopefully the above solves the issue however if not here are more troubleshooting methods.

For BlueScreen troubleshooting methods using BlueScreenView and MyEventViewer see my replies

if this thread - top 3 answers (+1 other).

http://social.answers.microsoft.com/Forums/en-US/w7repair/thread/c675b7b8-795f-474d-a1c4-6b77b3fcd990

We can analyze the minidumps if you make them available from the SkyDrive or other file

sharing sites (such as MediaFire). If you have problems uploading the minidumps copy

them to the Desktop or the Documents folder and upload them from there.

Zip or upload the contents of C:\Windows\minidump

Use SkyDrive to upload collected files and post screen shot/picture.

http://social.technet.microsoft.com/Forums/en-US/w7itproui/thread/4fc10639-02db-4665-993a-08d865088d65

==============================================================

BCCode: D1     0x000000D1Check these KB's

Stop error when you resume a computer that is running Windows 7 or Windows Server 2008 R2

from sleep or from hibernation: "STOP: 0x000000D1"

http://support.microsoft.com/kb/978982

Stop error on a Windows Server 2008 R2-based or Windows 7-based computer when the operating

system uses a virtual storport miniport driver to save a dump file or a hibernation file: "0x000000D1"

http://support.microsoft.com/kb/2320550

Those and 7 other KB Articles are available

http://support.microsoft.com/search/default.aspx?mode=a&query=0x000000D1&spid=14019&catalog=LCID%3D1033&1033comm=1&res=10

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Think Video drivers mainly though it can be others. See the driver section in my generic bluescreen

troubleshooting methods below. BIOS, low level chipset drivers and antivirus/antispyway/security

programs can also cause this. Check the troubleshooter and when you get to the driver and memory testing sections refer to the generic methods in next message and then return to the troubleshooter

if needed.

Cause

A driver tried to access an address that is pageable (or that is completely invalid) while the IRQL was too high.

This bug check is usually caused by drivers that have used improper addresses.

If the first parameter has the same value as the fourth parameter, and the third parameter indicates an execute operation, this bug check was likely caused by a driver that was trying to execute code when the code itself was paged out. Possible causes for the page fault include the following:

• The function was marked as pageable and was running at an elevated IRQL (which includes obtaining a lock).
• The function call was made to a function in another driver, and that driver was unloaded.
• The function was called by using a function pointer that was an invalid pointer.

BCCode: d1   0x000000d1  <-- read this linkhttp://www.faultwire.com/solutions-fatal\_error/DRIVER-IRQL-NOT-LESS-OR-EQUAL-0x000000D1-\*1210.html?order=votes

=========================================

Look in the Event Viewer to see if anything is reported about those.

http://www.computerperformance.co.uk/vista/vista\_event\_viewer.htm

MyEventViewer - Free - a simple alternative to the standard event viewer of Windows.TIP - Options - Advanced Filter allows you to see a time frame instead of the whole file.

http://www.nirsoft.net/utils/my\_event\_viewer.html

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Here are some methods to possibly fix the blue screen issue. If you could give the Blue Screen

info that would help. Such as the BCC and the other 4 entries on the lower left. And any other

error information such as STOP codes and info such as IRQL_NOT_LESS_OR_EQUAL or PAGE_FAULT_IN_NONPAGED_AREA and similar messages.

As examples :

BCCode: 116

BCP1: 87BC9510

BCP2: 8C013D80

BCP3: 00000000

BCP4: 00000002

or in this format :

Stop: 0x00000000 (oxoooooooo oxoooooooo oxooooooooo oxoooooooo)

tcpip.sys - Address 0x00000000 base at 0x000000000 DateStamp 0x000000000

This is an excellent tool for posting Blue Screen Error InformationBlueScreenView scans all your minidump files created during 'blue screen of death'crashes, and displays the information about all crashes in one table - Free

http://www.nirsoft.net/utils/blue\_screen\_view.html

Many BlueScreens are caused by old or corrupted drivers, especially video drivers however

there are other causes.

You can do these in Safe Mode if needed or from Command Prompt from Vista DVD or

Recovery Options if your system has that installed by the maker.

How to Boot to the System Recovery Options in Windows 7

http://www.sevenforums.com/tutorials/668-system-recovery-options.html

You can try a System Restore back to a point before the problem started if there is one.

How to Do a System Restore in Windows 7

http://www.sevenforums.com/tutorials/700-system-restore.html

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Start - type this in Search Box ->  COMMAND   find at top and RIGHT CLICK  -  RUN AS ADMIN

Enter this at the prompt - sfc /scannow

How to Repair Windows 7 System Files with System File Checker

http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program

generates in Windows Vista cbs.log (and Windows 7)

http://support.microsoft.com/kb/928228

The log might give you the answer if there was a corrupted driver. (Does not tell all the possible

driver issues).

Also run CheckDisk so we can rule out corruption as much as possible.

How to Run Check Disk at Startup in Windows 7

http://www.sevenforums.com/tutorials/433-disk-check.html

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Often updating drivers will help, usually Video, Sound, Network Card  (NIC), WiFi, 3rd party

keyboard and mouse, as well as other major device drivers.

Manually look at manufacturer's sites for drivers - and Device Maker's sites.

http://pcsupport.about.com/od/driverssupport/ht/driverdlmfgr.htm

Installing and updating drivers in 7 (updating drivers manually using the methods above is preferred

to ensure the latest drivers from System maker and Device makers are found)

http://www.sevenforums.com/tutorials/43216-installing-updating-drivers-7-a.html

How To Disable Automatic Driver Installation In Windows Vista - Drivers

http://www.addictivetips.com/windows-tips/how-to-disable-automatic-driver-installation-in-windows-vista/

http://technet.microsoft.com/en-us/library/cc730606(WS.10).aspx

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How to fix BlueScreen (STOP) errors that cause Windows Vista to shut down or restart

unexpectedly

http://support.microsoft.com/kb/958233

Troubleshooting Vista Blue Screen, STOP Errors (and Windows 7)

http://www.chicagotech.net/vista/vistabluescreen.htm

Understanding and Decoding BSOD (blue screen of death) Messages

http://www.taranfx.com/blog/?p=692

Windows - Troubleshooting Blue Screen Errors

http://kb.wisc.edu/page.php?id=7033

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In some cases this might be required.

StartUp Repair from Recovery Options or Windows 7 disk

How to Run a Startup Repair in Windows 7

http://www.sevenforums.com/tutorials/681-startup-repair.html

How to Boot to the System Recovery Options in Windows 7

http://www.sevenforums.com/tutorials/668-system-recovery-options.html

Download Windows 7 System Recovery Discs

http://neosmart.net/blog/2009/windows-7-system-repair-discs/

How to Create a Windows 7 System Repair Disc

http://www.sevenforums.com/tutorials/2083-system-repair-disc-create.html

Hope this helps.

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Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle - Mark Twain said it right.

Hi,

References to Vista also apply to Windows 7.

This is my generic how to for proper driver updates :

This utility makes it easy to see which versions are loaded :

DriverView - Free - utility displays the list of all device drivers currently loaded on your system.

For each driver in the list, additional useful information is displayed: load address of the driver,

description, version, product name, company that created the driver, and more.

http://www.nirsoft.net/utils/driverview.html

For Drivers check System Maker as fallbacks and Device Maker's which are the most current.

Control Panel - Device Manager - Display Adapter - write down the make and complete model

of your video adapter - double click - Driver's tab - write down the version info. Now click UPdate

Driver (this may not do anything as MS is far behind certifying drivers) - then Right Click -

Uninstall - REBOOT this will refresh the driver stack.

Repeat that for Network - Network Card (NIC), Wifi, Sound, Mouse and Keyboard if 3rd party

with their own software and drivers and any other major device drivers you have.

Now go to System Maker's site (Dell, HP, Toshiba as examples) (as rollback) and then Device

Maker's site (Realtek, Intel, Nvidia, ATI as examples) and get their latest versions. (Look for

BIOS, Chipset and software updates at System Maker's site while there.)

Download - SAVE - go to where you put them - Right Click - RUN AD ADMIN - REBOOT after

each installation.

Always check in Device Manager - Drivers tab to be sure the version you are installing actually

shows up. This is because some drivers rollback before the latest is installed (sound drivers

particularly do this) so install a driver - reboot - check to be sure it is installed and repeat as

needed.

Repeat at Device Makers - BTW at Device Makers DO NOT RUN THEIR SCANNER - check

manually by model.

Manually look at manufacturer's sites for drivers - and Device Maker's sites.

http://pcsupport.about.com/od/driverssupport/ht/driverdlmfgr.htm

Installing and updating drivers in 7 (updating drivers manually using the methods above is preferred

to ensure the latest drivers from System maker and Device makers are found)

http://www.sevenforums.com/tutorials/43216-installing-updating-drivers-7-a.html

If you update drivers manually then it is a good idea to disable Driver Installations in Windows

Updates, this leaves Windows Updates ON however it will not install drivers which will usually

be older and cause issues. If Updates suggests a new driver then HIDE it (Right Click on it)

and then go look for new ones manually if you wish.

Stop Windows 7 from Automatically Installing Device Drivers

http://helpdeskgeek.com/windows-7/stop-windows-7-from-automatically-installing-device-drivers/

How To Disable Automatic Driver Installation In Windows 7 / Vista

http://www.addictivetips.com/windows-tips/how-to-disable-automatic-driver-installation-in-windows-vista/

Disable Windows Update Device Driver Search Prompt In Windows 7 / Vista (for Professional,

Ultimate, and Enterprise)

http://www.addictivetips.com/windows-tips/disable-windows-update-device-driver-search-prompt/

==========================================

Memory tests do not catch all errors such as mismatched memory (possible even for sticks

that appear to be identical) and when faster memory is placed in system behind slower memory.

So it is best to also swap sticks in and out to check for those even if all memory tests fail to show

a problem.

To test RAM check here - let it run 4+ hours or so.  <-- best methodwww.memtest.org

For the Windows Memory Diagnostic Tool.

Start - type in Search box ->  Memory - find Memory Diagnostics tool at top of list - Right Click -

RUN AS ADMIN follow the instructions

Windows Vista: How to Scan / Test your RAM or Memory with Windows Vista Memory Diagnostic

Tool

http://www.shivaranjan.com/2007/11/01/windows-vista-how-to-scan-test-your-ram-or-memory-with-windows-vista-memory-diagnostic-tool/

How to Run the Memory Diagnostics Tool in Windows 7

http://www.sevenforums.com/tutorials/715-memory-diagnostics-tool.html

Test Your Computer’s Memory Using Windows Vista Memory Diagnostic Tool

http://www.howtogeek.com/howto/windows-vista/test-your-computers-memory-using-windows-vista-memory-diagnostic-tool/

Hope this helps.

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Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle - Mark Twain said it right.

hey Rob

wow... lots-0-info!  I feel overwhelmed! ok... a new day and Im ready to dive in again and try to resolve this! Im starting over for clarity... prolly more for me than you! :-) Also. please bare with me as I have some dificulty in processing information these days and, tend to miss the obvious sometimes.

The problem Im having is with the wifes laptop (which is running Windows 7) and I am communicating to you via my desktop (which is running Vista). I presently have no means of interconnecting the two computers so I am challenged with extracting more indepth information to repair the laptop.

Heres what I have: ASUS U50A laptop 4G/500.  2 ea. CDs from ASUS: Windows 7 Recovery Media and Driver & Utility Ver 1.0 U50A. There have been no changes/new installs as of late and the only thing I can think could be a cause is that windows is set to auto update but, I really dont know.

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turn on the laptop... it processes and shows the windows startup screen... then shows the windows welcome screen... then it gets the blue screen with the following error:

DRIVER_IRQL_NOT_LESS_OR_EQUAL

*** STOP:  0x000000D1 (0xFFFFF9800274FC60, 0x0000000000000002, 0x0000000000000001, 0xFFFFF880012C04FF)

*** iaStor.sys  -  Address FFFFF880012C04FF base at FFFFF8800126E000, DateStamp 4a287aa4

=======================

turn off and turn on again... pressing F8, get the Advanced Boot Options menu... select "Repair Your Computer"... get System Recovery Options window prompt thru to Choose a recovery tool... select Startup Repair...it starts searching for problems... then posts Startup Repair could not detect a problem. go back to System Recovery Options window and select Sytem Restore... shows most recent resore point as 2/17/2011 (thats interesting because system would not work 2 days ago... it hasnt worked for a few weeks now)... click on show more restore points. it shows a 2/2/2011 windows update and, prior to that is a 1/17/2011 Installed Network64. Prior to that are almost daily postings of windows updates. 

Im now wondering if this Network64 is what caused all this?

Hi,

Please go back to the top of the first troubleshooter and try updating iastor.sys.

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Rob Brown - Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle - Mark Twain said it right.

roger... heres the rub... i cant get the laptop to boot in safe mode now! getting blue screen after selecting any safe mode from the F8 menu

utilizing my desktop... I have located the update in question and downloaded it. expanded the zip and copied it onto a cd. I think I know the answer but Ill ask to be sure...

what procedure do I use to boot the laptop since it wont boot up in any safe mode utilizing the F8?