Driver_irql_not_less_or_equal - USBPORT.SYS - address F67678F0 base at F6761000, datestamp 41107d62

Recently I have begun receiving this bsod on shut down for no apparent reason.  I have not updated or changed any drivers on my system or added any new equipment recently.  However, I have noticed that one of the 6 USB ports on my system appears to have gone bad or is not working.  My system hardware, (older machine):
ASUS A8V Deluxe
AMD64 3500+
1GB Crucial Ballistix
GeForce 6800 Ultra
Windows XP SP2 and all latest updates
DnemonixAsked:
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scrathcyboyCommented:
USB ports do go bad, you can try switching devices on the ports, but in the end, you will probably have to give up on using that particular port.
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warrenbucklesCommented:
BSOD crashes like this are often associated with hardware problems - RAM, motherboard or expansion cards.

Is there any pattern to the problem - on time or specific applications?

I suggest you run a memory test using Memtest (http://www.memtest.org/) - run it off a floppy with logging enabled so that any other system software is out of the picture.

You could try running off the UBCD for Windows here (http://www.ubcd4win.com/) - this will also remove any software dependencies.

You could also download a test utility such as Everest (trial version at  http://www.lavalys.com/products/download.php?ps=UE&lang=en) or Burn-in (trial version at http://www.passmark.com/products/bit.htm).  There are many other utilities like this - these are just a couple that I am familiar with.

As a footnote, you said 'I have not updated or changed any drivers on my system or added any new equipment recently.'

True, but you do have Windows Update turned on - it's possible that one of the Windows updates is causing this problem.

However, this seems unlikely - the drivers on the ASUS site are dated 2005 and before (except for a beta BIOS dated 2007).

wb
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memitimCommented:
I second that memory test suggestion, although you may need to go so far as to pull DIMMs as I have had a couple of memory issues that testing didn't find. I've gotten the Driver_irql_not_less_or_equal error a few times in the past few years and every time but one it was bad RAM; the exception was a bad motherboard.
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DnemonixAuthor Commented:
Thank you all for your comments as they are appreciated.  Not sure what the solution is since i have pulled the ram/ran memtest without issue.  Curiously, I have looked deeper into the issue and have found the problems began when purchasing then installing Norton SystemWorks 2008.  Upon further investigation whenever I try to run a virus scan, the machine bsod's and I get a similar error as indicated above though no explanation is given, (nothing related to USB).  I guess the solution would be to remove Norton and see if the errors continue.  Thank you all again for your efforts.
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DnemonixAuthor Commented:
Thank you for your suggestions as they are appreciated.
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