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Yosemite won't boot after changing CPU frequency

Joined
Mar 1, 2014
Messages
122
Motherboard
Rampage IV Extreme X79
CPU
i7-4930K
Graphics
Vega 56
Mac
iMac, MacBook Pro, Mac mini, Mac Pro
Mobile Phone
Android, iOS
When I try to lower the the frequency of my 4930k, my system won't boot. I've had it running at 4.2ghz for about 3 years but after about a week uptime I can get a random shutdown so I wanted to try and get it more stable by lowering the frequency but then it wont boot. When I change it back to 4.2ghz it boots as normal.

This is what I get when trying to boot on a lower frequency.

IMG_20171102_142018-01.png


If anyone has any info on why this could be happening I'd be happy to hear :)
 
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