0

in the same week, I’ve had 3 computers fail to turn on when being connected to my two external HDDs. The drives are a LaCie 500Gb and an IBM 250 Gb in an OWC case. Both connect through Firewire 800 or eSata. The HDDs and the desktop computers have always been connected through a good non back-up surge protector.

The ex.HDDs have been continuously connected but lightly used since 2011. They are daisy chained to each other by firewire 800. Internet access has been turned off for the last 5 years.

First failure— My 2011 iMac failed to turn on one morning. Second failure— I connected my 2012 mac laptop to the HDDs as the laptop was booting. Third failure—After setting up a “new” OWC 2015 iMac connected to the same ex. HDDs, it failed to restart after several restarts.

What would you do? Test the drives or just extract the data for new drives?

I was thinking transient voltage spikes caused by one of the hard disk drives.

What type of test and what type of test professional should I look for to test the HDDs? Voltage spikes? Apple certified repair can’t test the HDDs, only extract the data.

2
  • 1
    It's not unheard of for a 13 years old computer to just fail. It happens.
    – harrymc
    Commented Mar 25 at 20:11
  • I'd imagine the simplest thing to check is for a working ground on the drives. I don't know specifics of the Firewire cable, but I'd guess the outside metal sheathe is the ground, but you can check the spec documents to confirm this. A good ground should mitigate issues with other parts of the system. Check the power cord(s) for the drives as well, and the data cables to. If you have a powered/active Firewire port replicator or "hub", see if connecting the drives to this kills it, and if it doesn't, if then connecting the hub to a computer kills the computer. Commented Mar 25 at 20:18

0

You must log in to answer this question.

Browse other questions tagged .