Question about Compaq DLT Tape Drive (TF85) DLT Tape Drive

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Parity error issue with TF85 DSSI based on VAX4000 - 700

I'm facing a parity error with my drive disk TF85
When I try to initialise them it shows parity error
I tried to swap controlor board with the same ref
and I tried cleaning tape III, well it occurs a same
error message
Somebody has had such issue please someone can answer me
Best Regards
K Berkani

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If cleaning the heads using the cleaning tape did not help, then there are 3 possibilities that I know of:

1) The heads are sufficiently dirty to require direct cleaning with a more powerful solution.
2) The heads are defective.
3) The heads are out of alignment.

Parity errors are not usually controller problems. If the head alignment has drifted enough, you may be missing a track when recording. An initialization includes writing format information at the beginning of the tape. This is "re-read" during the process to confirm correct writing. This is the part that is failing.

Keep me posted.

Dan

Posted on Apr 09, 2009

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There's serial communications parity too...mostly deprecated by USB, but it can come up in connecting POS (point of sale) printers, etc.

If the error instead arises in another context; well, you'd need to search for some enlightenment relating to that and 'parity' to get some enlightenment on the subject.

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We have an IBM ThinkCentre S51 Desktop PC and the computer froze up with a parity error. We restarted it and we would like to know if that will solve the problem for the future.



Parity error pops up when the memory encounters a read error. It may be a one time glitch or a sign of memory failure to come.

'Parity' is a form of error detection that uses a single bit to represent the odd or even quantities of '1's and '0's in the data. Parity usually consists of one parity bit for each eight bits of data.
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I would run a memory diagnostic to see if your memory (RAM) is stable.

Download Windows Memory Diagnostics tool,copy it to a CD and run it. There is a User guide to instruct you how to do this.
http://oca.microsoft.com/en/windiag.asp

Click on this link or copy and paste the complete link into your browser.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

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Bij doorstarten moet ik steeds f1 indrukken en bij het afsluiten krijg ik een blauw scherm met de tekst Hardware malfuction call your hardware vendor for support NMI:parity check/memery parity...


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You can try flashing the BIOS to A04 (You'll need to copy the flash executable to a bootable CD or bootable USB drive to run the flash.
Try individual or different RAM modules
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99% of the problems surround the SCSI bus itself in the form of a damaged SCSI cable, loose terminator, or a bent pin on a SCSI connector (latter being most common). This error is more apparent after moving the SCSI devices, resulting in unplugging and then replugging the cables back onto the Targets (HDD, CD/DVD ROM, printer, etc.) or back onto the Host Bus Adapter (HBA - the 29320 in your case). Check ALL pins. You can try to straighten the pins, otherwise it's time to replace the cable. REMEMBER that terminators are a must and can also cause Parity Errors if there is no termination present on one end of the bus or the other.
This coming from an ex-Adaptec employee and support person! :)

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Hi, Sorry to hear you are having problems with your laptop, please check out this ---> LINK <--- it gives some good info an parity errors and what can be done, it should help you sort out the problem.

Hope this helps (: dont forget the thumbs up if it did :)

Midge.

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NMI:parity check /memory parity error


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You're probably looking at buying some new memory. If so, use the opportunity to increase your memory within the limits of your operating system.

Win XP, 32 bit, will see up to about 3.2MB of RAM
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