Solved

Unstable - Invalid Page Faults

Posted on 1997-02-19
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Last Modified: 2013-12-16
Help!  I recently bought a clone machine for my mom & stepdad.  It will
not run Win95 without frequent crashes and is driving me nuts!!  I think
it's likely a hardware glitch of somekind, but can't figure what!

Symptoms:

Crashes frequently - often during the startup process.  Explorer is
often the program that hangs, but many others will show up too,
especially if it makes it through the startup and I try to run any
program.  No matter what program causes the crash, the error message
ALWAYS refers to an invalid page fault in module <unknown> at one of
three addresses

0000:bfff12ef
0000:bfff17ef  or
0000:bfff146c

The system is a P166 Triton III motherboard with Trident 1M video card,
32M RAM and a WD32500 drive.

What I've done so far:

I tried to remove or disable everything
extraneous to get to lowest common denominator.  I've removed all the
extra cards, disabled the CD-ROM & floppy (and the 2nd IDE channel the
CD-ROM is attached to), changed back to standard VGA video driver and it
still exhibits the same problem.  I've pulled out the 4 8M SIMMS and swapped them - problem remains the same.  Is not even stable in safe mode.  BTW,
I did install the driver upgrade for the Intel 82371 IDE controller -
made no difference.
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Question by:GRima
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Expert Comment

by:cory012297
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The Western Digital drives have a known error as reported on their home page, your hard drive seems to be one of them.
I would try to take the hard drive back, and mabey get a Seagate or Another model type of the WD, but their is software to correct the error, made and tested by Western digital
                   the model numbers are
                   AC11000 (1.0 GB)
                   AC22100 (2.1 GB)
                -->AC32500 (2.5 GB)<--
                   AC33100 (3.1 GB)
if this is the case, go to there home page and download the software to correct the error.
                   www.wdc.com
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Author Comment

by:GRima
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Cory-

I actually noticed this on another question at this site after posting mine and have retreived the software patch.  I'm frankly skeptical whether this is my problem - seems like a disk related error would result in more randomness to the glitches, rather than the very repeatable errors I'm getting.  However, if it does slove the problem, then you'll get the credit.  I'm not going to have a chance to apply the patch until Saturday.  I'll let you know then.....
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Author Comment

by:GRima
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Cory-

I actually noticed this on another question at this site after posting mine and have retrieved the software patch.  I'm frankly skeptical whether this is my problem - seems like a disk related error would result in more randomness to the glitches, rather than the very repeatable errors I'm getting.  However, if it does slove the problem, then you'll get the credit.  I'm not going to have a chance to apply the patch until Saturday.  I'll let you know then.....
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Author Comment

by:GRima
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Sorry, Cory, this turned out to be a tough one!  I tried the WD patch which promptly said it was not needed on this drive.  I then tried a different video card which also didn't help.  I finally gave up and swapped the motherboard.  This finally solved the problem, meaning the bug was ultimately a defective motherboard!  I put everything from the other system onto the new board - CPU, memory, cache and all cards.  Its humming along.
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Accepted Solution

by:
djay earned 200 total points
Comment Utility
I think that the problem my lie in the memory sockets for the simm modules on the motherboard. I've had a problem pretty much the same it seemed the one of the simm sockets was shot and lost it when it got heated up. The problem didnät always happen at the same time but it did happen eventually. Mostly resulting in a Blue screen in Win95 (OSR1 and OSR2) and WinNT 4. Try borrowing a motherboard from someone or from your local store and try with the new one. If you can't borrow one buy one and if you don't want it return and say that it was the wrong type of MB of some other dumb answer...

Good Luck

/Dave
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