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Suddenly shutting down immediately during boot


farski
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I started a new build in November, and had things basically working really well. I just needed to dial in a few DSDT changes to be done. Then my motherboard started to die, and getting it replaced took way longer than it should have. Anyway, I got a replacement board (exact same model/revision). I installed W7 over my OS X install to run a lot of tests just so I didn't run into another bad board situation. Then I put OS X back on, and set up the boot drive exactly as it was before.

 

Now instead of booting up and working perfectly, almost as soon as I hit enter on the boot selector screen the computer shuts down and all the case fans start going at full speed. It prints out maybe 20-25 lines on the screen in verbose mode, but they're gone before I can actually read anything or notice any errors.

 

The system drive works fine with [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url], and I've never run into this problem with a Chameleon installation before. Obviously I've had my share of KPs, but nothing this abrupt or that soon during the boot process. I've tried the most bare-minimum combinations of kext in /E/E and it's the same result.

 

Any ideas?

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Make sure it's running the same BIOS version as the old board was.

 

If it is, then try removing your old DSDT. If you're still using that.

 

/EDIT

 

Hmm, it works fine with [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url], missed that part.

 

Reinstall Chameleon manually. If your drive is GUID partitioned, you can use my guide and files from here:

http://forum.voodooprojects.org/index.php/topic,649.0.html

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Thanks for the tips. BIOS versions are the same, though with slightly different settings. I had actually gotten around to doing anything meaningful with the DSDT before the old board broke, so I never even had one loaded. I've been trying different forks and install methods of Cham and I think I finally found one that going to work. Not working entirely yet, but at least it's giving me a more meaningful error that I should be able to fix. Thanks again.

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