Hi David, > On 8 Sep 2016, at 3:50 PM, David Noel <[email protected]> wrote: > > -- Thanks very much for that, Ronni. It looks as if the problem is > just in the Power switch itself -- it has no spring feel. > > -- I find that my trusty iMac is now classed as 'obsolete' by Apple, > so authorized Apple repairers won't take it on. I'm asking Daniel by > CC about somebody who might fix it, the machine was working well up to > the moment I powered it down, so it should be recoverable. > > -- I've ordered a new iMac, the old one was apparently eight years or > so old, so I think I got my value from it. > > -- I have a 1.5 TB external drive attached to the old iMac, it is > bootable with a 10.6.8 system. On the new iMac, would I be able to > boot it from this external drive?
You can’t start up your Mac from an external drive with a version and build of OS X older than the version OS X that came with your Mac. Your new iMac will come with either El Capitan OS X 10.11.6 preinstalled or even perhaps macOS 10.12 Sierra. Cheers, Ronni 13-inch MacBook Air (April 2014) 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz 8GB 1600MHz LPDDR3 SDRAM 512GB PCIe-based Flash Storage El Capitan OS X 10.11.6 > > Cheers, David > > > On 8 September 2016 at 12:09, Ronni Brown <[email protected]> wrote: >> Hello David, >> >> On 8 Sep 2016, at 11:34 AM, David Noel <[email protected]> wrote: >> >> HELP! I shut down my iMac and now the power switch on the back doesn't >> bring it back up -- what can I do????? >> >> >> David Noel >> >> (writing this on my wife's MacBook pro). >> >> >> How to fix a Mac that won't start up: Step 1 - Check your Mac turns on >> First, let's check that the problem is that your Mac won't start up, and not >> that it won't turn on - those might sound like the same thing, but there's >> actually a big difference. >> Press the Power button on your Mac. If you don't hear a start-up chime, you >> don't hear any fan or drive noise, and there are no images, video or visuals >> of any sort on your display, then your Mac isn't turning on at all. You're >> not even getting to the point where it refuses to start up. >> >> A Mac that doesn't turn on calls for a different approach to one that >> doesn't start up. If your computer doesn't turn on then take a look at this >> My Computer Won't Turn On support document from Apple. Apple suggests that >> you: >> >> Check the connection to the power. >> Try a different power cord or adaptor (if you have one). >> Disconnect all accessories (such as printers and USB hubs). >> If you recently installed new memory or a new hard drive, make sure they are >> correctly installed and compatible (if possible re-install the old memory or >> hard drive). >> >> >> If none of these steps resolve the problem, then you should attempt to reset >> the SMC (System Management Controller) >> If inline link doesn’t work here is complete link to SMC reset: >> <https://support.apple.com/en-us/HT201295> >> >> Cheers, >> Ronni >> >> 13-inch MacBook Air (April 2014) >> 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz >> 8GB 1600MHz LPDDR3 SDRAM >> 512GB PCIe-based Flash Storage >> >> El Capitan OS X 10.11.6 >> >
-- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
