We help IT Professionals succeed at work.

BSOD 7b with no apparent cause for stop code in XP

1,268 Views
Last Modified: 2013-12-01
On an XP Pro PC I am getting a blue screen with stop code 7B.  I have run the HDD manufacturer's (WDC) extended diagnostic with no fault found.  I have put a diagnostic card in the mobo that reports no significant faults (just a problem with APM getting power status).  It has exercised the disk at length but not reported any fault.  I have replaced the SATA cable and moved the drive to a different SATA port.

I booted off the installation CD and ran an in-place repair.  It gets all the way to Installing Windows - Installing Devices where, when two thirds through, it boots itself and restarts the Installing Windows phase.

Is there hope ?
Comment
Watch Question

CERTIFIED EXPERT
Most Valuable Expert 2015
Commented:
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION

Author

Commented:
Memtest completed 3 full passes with no errors flagged.

Author

Commented:
I tried booting with BIOS settings set to each of
RAID Autodetect/AHCI, (apparently rhe system default but not what this PC was working on)
RAID Autodetect/ATA (the way this PC was set up before the problem)
& SATA/PATA Combination mode
but each time get a BSOD 7B.

I have formatted the disk and reinstalled XP with BIOS set to SATA/PATA Combination mode.  This works just fine so hardware is certainly not the problem.  The system date/time are held good so I don't suspect BIOS battery problem, but the issue must be a corruption in either the CMOS or Windows such that an XP repair install doesn't fix it.

I would still like to get the previous system working to avoid reinstalling all programs, so I have restored from image backup.  The BIOS is Rev A01 dated 7/17/04 I wonder if flashing to a later version (14/08/2006) would help or hinder.  I can't think of anything else to do; chipdet driver update would be worth doing but impossible without Windows running (in which case it would not be necessary).
CERTIFIED EXPERT
Most Valuable Expert 2015
Commented:
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION

Author

Commented:
What dumps ?  Do you have a file or directory name for me to look in ?

Any speculation about how this could have happened ?  Assuming it is a device controller driver problem, how can this be corrupted ?  CHKDSK showed no errors.
CERTIFIED EXPERT
Most Valuable Expert 2015
Commented:
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
CERTIFIED EXPERT
Most Valuable Expert 2015
Commented:
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION

Author

Commented:
offs.sys is part of an application called openFabric, a document management program form http://www.suntail.net/   
How can that cause a BSOD 7B ?  Could it modify the AHCI drivers or something ?  
Would getting a good copy of that file cause the system to work again ?
How can a Windows minidump file be read ?
Thanks.
CERTIFIED EXPERT
Most Valuable Expert 2015
Commented:
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION

Author

Commented:
I have formatted the disk and reinstalled from scratch.  All programs have to be reinstalled :-(  
I don't even know how this sort of problem could have been made easier with benefit of hindsight.
Thanks for the comments.
Unlock the solution to this question.
Join our community and discover your potential

Experts Exchange is the only place where you can interact directly with leading experts in the technology field. Become a member today and access the collective knowledge of thousands of technology experts.

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.