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How to power up Lacie automatically with minimac?

Posted on 2007-11-24
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Last Modified: 2008-02-01
We want the Lacie HDD to power up automatically when we switch on the Minimac.  Is this possible?  If so how? Tks
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Question by:stevetam05
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by:pheidius
ID: 20347562
So you have an external Lacie HDD connected by firewire or usb to your macmini i.e it has a switch to turn it on or off. If that is the case, then just leave the Lacie running all the time so that whenever you turn on the macmini( which i assume you are doing remotely) the lacie drive will be on and connected as soon as the mini completes its boot.
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by:stevetam05
ID: 20348081
Hi there, thanks for your help.  The external Lacie HDD is connected by firewire and yes it has its own powersupply, so yes there is a switch to turn it on and off.  I was wondering if there is a way to have it power on/off when the minimac boots/shutsdown.  I can see leaving the lacie running is one solution but would prefer to switch it off.  Perhaps it is not possible to link it to the minimac power up/shutdown?  We are not doing it remotely, just thought if its possible someone here can tell me how.  Cheers
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pheidius earned 50 total points
ID: 20355191
Well, yes, it would be possible just not pretty. and on/ off switch is pretty simple: open/ closed. You would have to crack open the case of the Lacie. I haven't looked at your exact model but that may have to be done with a dremmel as it is likely meant to be sealed permanently unlike an enclosure. So you may need to do this in an ultra sterile environment as I don't know if the drive within is hermetically sealed in an inner case. You might be wise to run a super powerful but static free vacum while cutting just in case the dremel tries to throws bits of metal inside. So once its head is off , you just run a black and a red wire inside and solder then to the correct switch contacts. You could drill two holes back out of the case top you cut off and snake the wires back out. Then just weld the cut  all around to restore the fit and seal the wire holes with some kind of liquid sealer. Next, you will have to take off the case of the mini using the plastic spreaders like you were replacing an ipod battery except on a larger scale. Then drill one or two holes in the mini's wall closest to its on /off switch and solder splice your black and red wires to the correct contacts. Leave enough slack to replace the case. and gently pull in the slack. Finally, don't forget to seal around your new wire holes. Whew! I really had to work for this 50 pts.
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