iMac video probs?

Hi all,

Just an off-topic and probably hardware Mac question…

My admittedly old (2006) 24" iMac is starting to show ‘ghosts in the machine’…or ghosts in the display, particularly. It’s like colour noise, but in lines or blocks. Sometimes resizing the working window makes it go away, but then it will return. This morning half the icons in the dock were broken like this, but when mouse-overed came into focus.

Any thoughts on whether this is hard drive, the display or video memory problem? (TechTool says video memory is ok, as is main memory)

Thx
Hugh


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I hope you’ve been saving up for a replacement machine the last 10 years?


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I might have… :wink: Although, (up until now, possibly), why try and replace something that isn’t broken?


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why try and replace something that isn’t broken?

Because nothing lasts for ever and you had to know that this day would come eventually.

D :wink:


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It’s not certain that it’s broken in a way that can’t be fixed… !

But I forgot…we live in the disposable age :wink:


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But I forgot…we live in the disposable age smiley

Dont look at it like that. I recently updated my 2009 iMac27 to a spiffing new 5K version - its an investment in the future!

Besides I still have the old one for her indoors to do Schooly stuff on - she still uses Appleworks.

D


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Dave, tell her that she’s got a friend… :slight_smile:


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However, that aside…no ideas on the display/video front? OK.


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no ideas on the display/video front? OK.

Apart from the usual trashing of preferences, PRAM reset, reinstalling OS etc - probably not worth prising it open to do anything hardware wise.

D


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Well I took the plunge…and have a ‘new’ Mac (secondhand, of course!)

It’s a 24" iMac running Yosemite at the moment, with a 1TB hard drive.

Now I selected a model that would still be capable of running Snow Leopard - as this is vital due to software use and need for Rosetta.

I’ve partitioned the disk on the new iMac and want to ‘clone’ my current hard drive to it. Connected up the Macs with an ethernet cable, they can see each other. Opened Carbon Copy Cloner on the old Mac and tried to select a target - my new ‘snowleopard’ partition shows, but has a small red ‘no entry’ symbol and I’m told that I don’t have permissions to access that folder.

Anyone know how I can make it permissioned so I can use it as the target destination for CCC?

I’m trying achieve a second bootable system on the new iMac, so Yosemite is in one partition and Snowleopard in the other - hopefully selectable at startup.

Any advice welcome, thanks

Hugh


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Try connecting the two machines with a FireWire cable. The one that you want to install on – start it up with the Command + T keys held down to initiate Target Disk Mode. That turns the Mac into a very expensive external drive. Now start the other Mac normally, and the first Mac’s hard drive will mount to the desktop as a disk. You can now clone away, without regard for permissions. Bonus – it’s much faster than Ethernet.

Walter

On Sep 26, 2016, at 7:51 AM, hugh email@hidden wrote:

Well I took the plunge…and have a ‘new’ Mac (secondhand, of course!)

It’s a 24" iMac running Yosemite at the moment, with a 1TB hard drive.

Now I selected a model that would still be capable of running Snow Leopard - as this is vital due to software use and need for Rosetta.

I’ve partitioned the disk on the new iMac and want to ‘clone’ my current hard drive to it. Connected up the Macs with an ethernet cable, they can see each other. Opened Carbon Copy Cloner on the old Mac and tried to select a target - my new ‘snowleopard’ partition shows, but has a small red ‘no entry’ symbol and I’m told that I don’t have permissions to access that folder.

Anyone know how I can make it permissioned so I can use it as the target destination for CCC?

I’m trying achieve a second bootable system on the new iMac, so Yosemite is in one partition and Snowleopard in the other - hopefully selectable at startup.

Any advice welcome, thanks

Hugh


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Thanks Walter, nice idea. I had thought of that, but unfortunately the Firewire cable I have is the old style connector, whereas the new Mac has the new style (Firewire 800…?) so my cable won’t work (i.e. it fits the old Mac but not the new one!)

In the meantime I have made a ‘bootable’ clone of my hard drive onto an USB external drive. I’ve hitched that up to the new mac and booted from the external drive ok, so the boot copy works.

So now…how to get the boot copy from the external drive onto the iMac itself…?


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I’ve always used Apple’s own Migration Assistant app (in your utilities folder) Have you tried that?

It can be slow over ethernet or Wifi so allow plenty of time. Last one took me 12+ hours overnight.

David Owen
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On 26 Sep 2016, at 14:29, hugh email@hidden wrote:

So now…how to get the boot copy from the external drive onto the iMac itself…?


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thanks, David - yes, I did try that, but it said the Macs or operating systems were incompatible, or something like that. I read on an Apple Support site thread that migration assistant doesn’t always copy over EVERYTHING and you may not end up with a bootable disk.


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