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Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

Another iMac power on issue.


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scottmcp432

 
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Member Since: Nov 15, 2010
Location: Midland Texas
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Mac Specs: mid '09 13" MBP 2.53 C2D, 8Gb RAM, 250 Gb HD, SL and Win7

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My fathers iMac (2.66 C2D, 4Gb RAM, OSX 10.7.4) has been giving him fits lately. It randomly goes to a black screen in use. In some instances the screen will return after moving the mouse or typing and sometimes the only way I have been able to get the screen back is to unplug the power, hold the power button for 30 seconds and reconnect power. PSU or GPU?
Ah, before I forget, I did run memtest yesterday and all RAM was ok. When I went to check the results of the test the iMac had once again black screened. When I got it on again the test results were still on screen and the results were fine.
Just happened again, think my best option is to convince him to get a new model since this one is 5 years old.
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chscag

 
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Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, OS X Mavericks

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Have you tried running the Apple Hardware Test on his iMac to see if it comes up with anything? See this LINK.
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scottmcp432

 
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Member Since: Nov 15, 2010
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Mac Specs: mid '09 13" MBP 2.53 C2D, 8Gb RAM, 250 Gb HD, SL and Win7

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I've tried holding Option+D before the splash screen to no effect. The iMac was upgraded to Lion about 2 weeks ago and I cannot launch the AHT no matter what I try.I also have the original Leopard install DVD's as well as a Snow Leopard DVD but do not know if those versions of AHT can be used with Lion. I have Googled the Black Screen of Death issue reported with Lion and also found links which mention a potential logic board failure. I hate to tell my Dad to reinstall Snow Leopard since he will lose a ton of pictures and home videos if he does this and obviously a logic board replacement would almost cost more than what the iMac is worth. I'm in the process of trying to convince him it is time to upgrade.
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chscag

 
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The Leopard and Snow Leopard AHT will work OK with your father's iMac even with Lion installed. If possible, make a backup of all his data before doing anything else. Use Target Disk Mode to access his iMac if you have another Mac that you can use. Both machines will need a firewire port to do this. See the following Apple KB article: LINK
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scottmcp432

 
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Do you mean a Time Machine backup or clone the drive?
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