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Problem description: My trusty late 2009 iMac locked up hard a couple of days ago while running Kodi (had to power cycle it) and will now only boot to safe mode. When booting normally it hangs when the progress bar is app. halfway through and then just sits there. Booting to safe mode works fine, there are no obvious errors in the logs or when booting in verbose mode (which also ends up hanging). Attempted fixes: Tried resetting PRAM and SMC. Tried restoring several different time machine backups, and re-installing mac os. I've now erased the hard drive and have installed a clean Mac OS 10.12.4, but it still hangs under normal boot. I've also tried cycling through each of the 4 RAM modules I have installed but that changed nothing. Recent changes: None Operating system: Mac OS Sierra 10.12.4 System specs: Apple iMac 27" late 2009. i5 2.66GHz, 1TB HD, 4850GPU, 12GB RAM. Completely stock except for an additional 8GB RAM installed a couple of years ago. Normally there are a couple of various USB devices attached (hard drive, midi device, Line6 device). but all of the restores/re-installs etc. has been done with nothing except power, keyboard and ethernet attached. Location: Denmark I have Googled and read the FAQ: Yes cdc fucked around with this message at 21:07 on Apr 23, 2017 |
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Apr 23, 2017 20:57
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| # ? Apr 20, 2024 02:00 |
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Have you checked the health of the HDD? If memory serves Disk Utility should at least give SMART info for it, but I'd really suggest checking it with Crystal Disk Info (get the portable version if you want the program to be anime-free).
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Apr 25, 2017 04:40
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CaptainSarcastic posted:Have you checked the health of the HDD? If memory serves Disk Utility should at least give SMART info for it, but I'd really suggest checking it with Crystal Disk Info (get the portable version if you want the program to be anime-free). Thanks for the reply. I can't find SMART info in Disk Utility, but the "First Aid" thing runs without errors, and in system report under storage the SMART status is verified. Crystal Disk Info seems to be Windows only, but I found something called Drivedx which does find something:   I might have a spare SATA drive somewhere I could try to put in.
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Apr 25, 2017 18:02
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It sounds like GPU failure. When you boot in verbose mode, whats the last thing on the screen before the machine locks up?
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Apr 25, 2017 18:59
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The Pell posted:It sounds like GPU failure. This is just before it switches to the white boot screen and hangs. 
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Apr 26, 2017 00:27
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Thats video card failure.
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Apr 26, 2017 23:02
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The Pell posted:Thats video card failure. I think you might be right, which also means that the old girl will be put down. I dont think I want to spend any real money fixing it, but it had a good almost 8 year run. Just out of curiosity, is there anything specific in the boot output that talks about the video card?
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Apr 27, 2017 17:19
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