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  1. #31
    Can a USB HD destroy an iMac.
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
    Posts
    7,861
    Your Mac's Specs
    MBP 15" Mid 2015, iPhone 11 Pro, an iMac, plus ATVs, AWatch, MacMini
    Rep Power
    29
    Quote Originally Posted by chscag View Post
    CCC can indeed do that provided you keep the SafetyNet on and of course have enough space on the cloned volume. I have used that feature of CCC several times.
    That is true, Charlie, but it's not as intuitive as TM's interface. You have to go back through the Safety Net to find where the file you wanted is stored, as it won't be there unless it changed before that backup.

    But, again, it's personal preferences. I use both because of my sad history of failed drives, so I have backups and backups of backups and then the important stuff is also stored away from the rest. Yep, paranoid and proud of it!
    Jake

  2. #32
    Can a USB HD destroy an iMac.

    Member Since
    Oct 21, 2016
    Location
    South Cumbria, England, UK
    Posts
    43
    Your Mac's Specs
    I have 4 Macs, most recent 2020, 13.3 MacBook Air running on osMac 10.15.3
    Rep Power
    4
    Quote Originally Posted by YYY View Post
    Strangely it seems there's no power portection on this imac. If indeed somehow my USB drive created a short, it probably killed the imac's PSU or other parts.

    I have all my Macs plugged into an anti-surge protector, as in England,UK, the various power providers do not provide this. Can you tell me how old your iMac is as under both US Law & UK Law, you may be protected. I have in my collection a late 2014 iMac 16 MB RAM & 1TB HD,, a 2013 MacBook Pro Retina (my wife's) both baked up to USB 2 SATA drives. My latest is a new 13.3" MacBook Air. Both the 27" iMac and MacBook Pro are backed up using Carbon Copy Cloner. I am surprised that you don't have a "back up" of your iMac using Carbon Copy Cloner. Read this Absence of Filters in Apple Computers Allows Dust, Debris to Accumulate Behind Screens, Class Action Claims and then cal Apple Tech Support in the US to see if it covers your iMac

    Good luck

  3. #33
    the imac is late 2015 I believe iMac (Retina 5K, 27-inch, Late 2015) - Technical Specifications
    Are you saying this machine might have an internal fuse or other surge protection built in?
    Yes indeed backing up is esssential. However most of my files reside on the non mounting USB drive (which may or may not be the culprit), which surprizingly, after spending the day in the fridge, mounted for a brief moment on my mbp with read capability but did not last long enough to copy anything off of it.
    My main concern now is getting this imac to run again

  4. #34
    Can a USB HD destroy an iMac.

    Member Since
    Oct 21, 2016
    Location
    South Cumbria, England, UK
    Posts
    43
    Your Mac's Specs
    I have 4 Macs, most recent 2020, 13.3 MacBook Air running on osMac 10.15.3
    Rep Power
    4
    iMac dead
    I have all my Macs plugged into an anti-surge protector, as in England,UK, the various power providers admit, their output can often be over 260 volts Can you tell me how old your iMac is as under both US Law & UK Law, you may be protected. I have in my collection a late 2014 iMac 16 MB RAM & 1TB HD,, a 2013 MacBook Pro Retina (my wife's) both baked up to USB 2 SATA drives. My latest is a new 13.3" MacBook Air. Both the 27" iMac and MacBook Pro are backed up using Carbon Copy Cloner. I am surprised that you don't have a "back up" of your iMac using Carbon Copy Cloner.

    Just ring Apple UK Tech Support and before speaking to an Apple Technician, read this it may be your advantage : Read this extract :

    Under consumer laws in the UK, consumers are entitled to a free of charge repair or replacement, discount or refund by the seller, of defective goods or goods which do not conform with the contract of sale. For goods purchased in England or Wales, these rights expire six years from delivery of the goods and for goods purchased in Scotland, these rights expire five years from delivery of the goods.
    Full article:Apple Computers and the EU Directive - David Clapp Photography Limited

    Good luck
    Last edited by jga40; 03-12-2020 at 01:04 PM. Reason: Added extra

  5. #35
    Can a USB HD destroy an iMac.

    Member Since
    Oct 21, 2016
    Location
    South Cumbria, England, UK
    Posts
    43
    Your Mac's Specs
    I have 4 Macs, most recent 2020, 13.3 MacBook Air running on osMac 10.15.3
    Rep Power
    4
    Thank you moderator for posting my original link. As well as being a Mac user since 1992, I'm a Welfare Rights Lawyer with specialism in Consumer Protection Law.
    Last edited by jga40; 03-12-2020 at 01:01 PM.

  6. #36
    The drive probably draws more power then before. It is a older drive, so current draw may have gotten worse over time.
    So you lost the 5v line. It will be dead with no 5v power available.
    Maybe the drive had such a large current draw at that time. It knocked out the 5v.
    SMC chip effected or smt fuse.
    You will need a schematic to locate this.
    This is like a 3A fuse near the power connector input.
    Check around the main supply.
    I think you have the PA-1311-2A1 supply.
    You an search online.

  7. #37
    Can a USB HD destroy an iMac.
    Jonzjob's Avatar
    Member Since
    Mar 30, 2010
    Location
    Ex Nr Carcassonne S France. Now NW Wiltshire England
    Posts
    935
    Your Mac's Specs
    Mid 2010 MBP 13, 8 gig mem, 2 int disks 500gig SSD, 1Tb SSHD . 2010 iMac, 8 gig, 2 Tb SSHD
    Rep Power
    11
    Martinique used to be French and if the plugs are the same or similar to the French system then they are not fused. Looking at a picture of a plug top adapter for there that's the case.
    John.
    Never forget that you are unique, just like everyone else.
    http://johnamandiers.wix.com/johns-w-o-w-1
    MBP and iMac on High Sierra.

  8. #38
    Can a USB HD destroy an iMac.

    Member Since
    Oct 21, 2016
    Location
    South Cumbria, England, UK
    Posts
    43
    Your Mac's Specs
    I have 4 Macs, most recent 2020, 13.3 MacBook Air running on osMac 10.15.3
    Rep Power
    4
    As you appear to be in the UK, have you not contacted Apple UK, Tech Support yet. ?

  9. #39
    Can a USB HD destroy an iMac.

    Member Since
    Jun 13, 2012
    Location
    Las Vegas... as of 23 Feb 2018
    Posts
    372
    Your Mac's Specs
    27" iMac mid-2011, ipad.Air 2', iPhone 8+.
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    8
    Do you have 230V at the end of the power cord?

    - - - Updated - - -

    Are there thermal protections or fuses inside the iMac
    ?

  10. #40
    Well the lab says it needs a new logic board at around 800 $
    I wonder if its worth

  11. #41
    Can a USB HD destroy an iMac.
    Rod's Avatar
    Member Since
    Jun 12, 2011
    Location
    Melbourne, Australia and Ubud, Bali, Indonesia
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    5,870
    Your Mac's Specs
    2015 MacBook Pro Retina 13" macOSX 10.15.1
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    I'd say that is a question only you can answer but I think it's worth the money. It is only 5 years old but if you are thinking you don't really need it, well that's a different thing. Obviously replacement would be considerably more. You might consider what you could sell it for, with or without new logic board.
    Don't be an April Fool: WORLD BACKUP DAY MARCH 31st

  12. #42
    I do use and need that machine, urgently now. my option for 800 eu total repair cost, is to revert to a windows or linux laptop , or get a 2015-2017 13" macbook. If I could be certian this imac, repaired, will last longer than 5 years, I'd go for it. But with the logic board dying for no apparent reason on a not so heavily used 5 year old imac, I'm starting to doubt the integrity of apple products these days

    question also if I can sell this broken machine, whole as is or for parts, and what can recuperate doing that

  13. #43
    Quote Originally Posted by Bill Gates Jr. View Post
    Do you have 230V at the end of the power cord?

    - - - Updated - - -

    Are there thermal protections or fuses inside the iMac
    ?
    Yes.
    There are a couple fuses inside all iMacs.
    There are pcb fuses.
    Say if your motherboard is the 820-2828.
    F4300, and F4301 are fuses.
    Though on this model it is 12v lines.
    The same lines are used in step down for 5v creation.fuse.png
    Last edited by Notebooksquad; 04-21-2020 at 02:56 PM.

  14. #44
    Can a USB HD destroy an iMac.
    Rod's Avatar
    Member Since
    Jun 12, 2011
    Location
    Melbourne, Australia and Ubud, Bali, Indonesia
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    5,870
    Your Mac's Specs
    2015 MacBook Pro Retina 13" macOSX 10.15.1
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    Well, nothing is certain, this pandemic has taught us that. Because I spent (before COVID-19) more than half of my time o/seas I have always relied on a Mac Book Pro. In 2016-17 I purchased a 2015 MBPr 13" to retain the original input/output ports. Today I'm not too sure what I would buy as a replacement as there are CPU changes on the horizon that I would like to see before making a choice.
    Don't be an April Fool: WORLD BACKUP DAY MARCH 31st

  15. #45
    Lab guy says the power supply is fine, HD is fine, what killed the Logic Board was electric surge but they do not know how exactly. Is it possible connecting the USB drive caused it? this is the only action I can associate with the failure as it was on that second. However it could be a coincidence. Big question still should it be repaired or sold for parts. Although I had multiple macs over decades and none failed, after this incident on a very expensive machine I do not trust apple products especially repaired ones, as I used to. It also seems this model may be defective by birth, as there are many reports of its logic board dying and rumors it is a defective model. If I do repair it, how long will that last? Sadly I do not expect much

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