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Hard drive corrupted by accelerator?

Posted on 2000-04-05
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Last Modified: 2010-04-14
I acquired a used 7100 with an accelerator that boosted the speed to 90 mhz.  I ran Norton Disk Doctor 4.0 to check the condition of the drive.  NDD discovered major problems with the media and could not complete the operation.  Thereafter the drive was no longer recognizeable.  I tried to reformat it but the drive utility said it had too many bad blocks.  I installed a new Quantum 2 gig drive and OS 8.0.  I then tried to update 8.0 to 8.1 but the installer said it could not be installed on this machine.  In reading the notes, I discovered that 8.1 did not work on 7100s with accelerators.  So I ran the machine with 8.0.  Within a week I began having more problems.  ClarisWorks 5.0 would no longer open  any documents.  (It froze any time I tried to open a document.)  I ran NDD again and once found major problems with the drive.  I let NDD run all night.  Major problems were found and repaired but the Check Media function only made it half way through its routine after running for 12 hours.  Norton tech support told me to abort the process and disconnect my external SCSI devices and try again.  When I did, I could no longer access the drive.  I was able to initialize it with Hard Disk Tool Kit 3.0, but HDT reported that it had numerous bad blocks and should be replaced.  

My question:  could the accelerator cause this damage?  What else might cause it?  The 2nd drive is under warranty so I can replace it but I don't want to go through this a 3rd time!  I have no idea who manufactured the accelerator.  It has a little dial on it with the letters A thru F and the numbers 0 thru 9.
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Question by:Quackerback
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What were the conditions of this aquisition? Could the person selling it have been selling it because it did have some ugly issues? In any case yes an accelerator COULD cause those problems as all the data thats written to the HD has to go through the processor first. If the processor is having issues then so will the data on your HD. My suggestion is to find out who made the card, in all likelyhood they have a new updated driver for it which fixes such bugs. Most likely the driver could be found at www.versiontracker.com

The only other things that could cause such issues are bad ram or ram thats not seated properly. Perhaps also magnets, or bad scsi ribbon cables.
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by:Quackerback
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The machine was acquired through GoodWill so not much hope of finding out anything from the original owner!  (I didn't buy it, it was given to our office by a hacker who went through it and cleaned it up.  He thinks there might be a voltage problem.)  
Thanks for the info.
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