Hi Guys Ive been getting intermittent BSOD on A Windows 7 PC No additional hardware has been added. Original error listed is. driver_irql_not_less_or_equal (i have a screen shot if i can post it)

This seems to be existing even in Vista; here's the hotfix info regarding the fix for this (for Vista): http://support.microsoft.com/kb/930261 What you can try is to reduce your RAM (I'm assuming, as per the KB above, you have 4 GB of RAM and an NVIDIA chipset) to, say, 3 GB and reboot the machine. Regards, Salvador Manaois III MCSE MCSA MCTS MCITP:EA/SA C|EH CIWA ---------------------------------------------------------------------------- Bytes & Badz: http://badzmanaois.blogspot.com My Passion: http://flickr.com/photos/badzmanaois My Scripting Blog: http://sgwindowsgroup.org/blogs/badz

Hi there Thanks for your reply. Yes i Have 6 GB System Ram and an ATI Radeon HD 5450 Graphics Card, im not sure what chipset it uses. But its a Dell XPS 8100 / 650 My OS is 64 Bit and so can handle the full 6GB So why take out the 3 GB..? I had found this Vista Patch but was a little dubious about installing it. Have you tried installing it and is it fully compatable with Windows 7. Paul

Hi, The updates for Windows Vista are not applicable to Windows 7. I would like to suggest you update the BIOS, the chipset drivers from Dell website and run Windows Update to install all the important updates first. Note: The third-party products discussed here are manufactured by companies that are independent of Microsoft. We make no warranty, implied or otherwise, regarding these products' performance or reliability. If it does not work, you may run System File Checker to scan the system files. If the issue persists, would you please upload minidump files to SkyDrive for further research? Collect Minidump Files ================= 1. Click "Start", input "SYSDM.CPL" (without quotation marks) in the “Search” bar and press “Enter”. 2. Switch to the "Advanced" tab and click the "Settings" button under "Startup and Recovery". 3. Under "Write debugging information" section, make sure the "Small memory dump (128KB)" option is selected. 4. Make sure "%SystemRoot%\Minidump" is in the "Small dump directory" open box and click “OK”. If the Blue Screen appears again, please refer to the following steps to collect memory dump files: 1. Click “Start”, type “%SystemRoot%\Minidump" (without quotation marks) in “Search” bar and press “Enter”. 2. Go to your Desktop, right-click on it and create a new folder named "Dump". 3. Copy all the memory dump files (looks like [Mini092008-01.dmp]) in Minidump to this folder. 4. Right-click on the Dump folder, click "Send To", and click "Compressed (zipped) Folder". 5. Please send the ZIP file to us. You may also analyze them with Debugging Tools by yourself. You can install it and it’s Symbol Packages from the following link: http://www.microsoft.com/whdc/Devtools/Debugging/default.mspx WinDbg will tell you the possible cause. For more information, please read Microsoft KB Article: How to read the small memory dump files that Windows creates for debugging. If no clue can be found, you may contact Microsoft Customer Service and Support (CSS) via telephone so that a dedicated Support Professional can assist with your request. To troubleshoot this kind of kernel crash issue, we need to debug the crashed system dump. Unfortunately, debugging is beyond what we can do in the forum. Please be advised that contacting phone support will be a charged call. To obtain the phone numbers for specific technology request please take a look at the web site listed below: http://support.microsoft.com/default.aspx?scid=fh;EN-US;OfferProPhone#faq607 Regards, Arthur Li - MSFT

Hi paul122, I suggest you check the following links for solution: BSOD IRQL_NOT_LESS_OR_EQUAL - Storport.sys http://social.technet.microsoft.com/Forums/en-US/w7itproinstall/thread/625769ce-50d1-4b25-965b-9139f7ce0249 Storport.sys BSOD on windows 7 install http://social.technet.microsoft.com/Forums/en/w7itproinstall/thread/1ce7d2e2-510d-479c-a903-380dd7005f51 The storport.sys driver leaks nonpaged pool memory when volumes are scanned, mounted, or dismounted in Windows Server 2008 and Windows Vista http://support.microsoft.com/kb/968675/en-us Sean Zhu - MSFT