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Strange Screws

Discussion in 'Electronic Repair' started by [email protected], Jan 16, 2006.

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  1. James Sweet

    James Sweet Guest

    There's nothing you can do by opening it. If it's clicking that means
    it's unable to read the disc due to a hardware failure. I've had some
    luck placing the whole drive in the freezer for a couple hours and then
    copying the important stuff off immediately but if that doesn't work
    either pay the $ for professional recovery or throw away the drive
    because I can guarantee you won't fix it by opening it.
  2. Rob B

    Rob B Guest

    has anyone ever pinched the fingers ? i bought some of these neodynium
    "warning extra strong" magnets from hardware store and skeptical i tried to
    pinch my fingers and have had no luck, well if that is the label to give
    such actions :)
  3. mm

    mm Guest

    Well, they want 1000 dollars or more.

    What about putting it in the freezer while I use it?

    Would't the heat of the drive and the coldness of the freezer, or
    fridge, which I could adjust if someone gave me some guidance, keep it
    at a steady rather cold temp?

    The flat wire is long enough, and the power wire can be any length I
    want it to be.

    Remove NOPSAM to email me. Please let
    me know if you have posted also.
  4. mm

    mm Guest

    I've practically tried to glue my fingers together with super-glue,
    and had no luck there either. :)

    Remove NOPSAM to email me. Please let
    me know if you have posted also.
  5. They're not used to make it difficult for you to get inside, but because
    it reduces manufacturing cost. Those screws don't slip off the bit, and
    you don't have to apply any pressure to the driver to prevent "cogging".
    They're just perfect for torque-limited power drivers in high-volume
    manufacturing situations.

    And as others have mentioned, they come out very nicely using a
    properly-sized flat blade. Sometimes a hex wrench will fit, too.

  6. NO! Do NOT do that.

    Some of those magnets can crash together fast enough to shatter. If they
    shatter, the small pieces (also sharp), do not have enough mass to be
    strongly attracted to whatever is left of the magnet. They can fly away
    at very high velocity, and cause serious injuries (to eyes, for example).

  7. Or a little work with a strong, small flat blade, to bend it back and
    forth until it breaks off.

  9. Chris Lewis

    Chris Lewis Guest

    Not by opening the drive... About the only thing that someone that
    doesn't have major equipment can accomplish by opening it up is to
    replace the drive electronics. Some of our support people are quite
    good at resurrecting drives by swapping the electronics (they keep
    electronics sets from head-crashed drives). But the OPs problem is
    not the electronics.

    Perhaps most of these types of failures (drive clicking - retries)
    can be "fixed" by causing the drive to write on the bad blocks, and
    then doing a fixdisk or equivalent. I'm familiar with somewhat
    older gear under UNIX, where you take the sector number from the error
    messages and use "dd" or write a small program to write a single
    block over the bad sector. Then run the file system repair utilities
    (ie: fsck) to clear/reclaim it.

    These days with smarter controllers, they sometimes automatically
    self-repair (spare out the bad sector), or a simple low-level reformat
    of the drive will fix or spare it out. You might find a suitable
    procedure on the manufacturer's web site.
  10. Chris Lewis

    Chris Lewis Guest

    You did know that the US Congress was mandating digital-only TV
    (I think) April 2009 didn't you?
    Screwdriver smugglers.
  11. Rob B

    Rob B Guest

    i suppose i am luckier than you for i have super'd my fingers together

    but i was not trying
  12. Rod Speed

    Rod Speed Guest

    Doesnt explain why they used the tamperproof
    and hard to get 5 lobe format.
  13. Dr. Hardcrab

    Dr. Hardcrab Guest

  14. Doug Miller

    Doug Miller Guest

    Try again.
    No, it's not. This is a five-pointed star. Torx screws have six points.
  15. J. Clarke

    J. Clarke Guest

  16. Ron(UK)

    Ron(UK) Guest

    What about all us old time service guys who never took courses on using
    these new fangled screwdriver whatnots! We`ll have to go on welfare as well.

  17. chrisv

    chrisv Guest

    You haven't tried big/strong ones, then. I have some that are 1"
    diameter and 1/4" thick, and I guarantee you that they'll give you a
    pinch you will not soon forget! They are also extremely difficult to
    seperate, once locked-together.
  18. chrisv

    chrisv Guest

    Ignore the SCSI troll.
  19. Rob B

    Rob B Guest

    well the ones i tried were small button type maybe 1/3" diameter and 1/8"
    thick they certainly were strong they hold more to the fridge than those
    crap magnets and prettier too

    but i could not pinch anything with those :)
  20. Nonsense.
    If it's clicking it means it does a rezero every time it retries a read operation.
    It does that on ECC errors and also on CRC errors on the interface.
    Neither is necessarily caused by a hardware failure.
    Bad power supply, overheated drive or bad data cable can cause this too.
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