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Stuck!! Kernal Panic when trying to update or install fresh..

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seinfeld101

seinfeld101

Joined
Dec 26, 2010
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11
Motherboard
X8DTL-I
CPU
Two 6 Core Xeon 5660
Graphics
Nvidia GTX 760 4GB
Mac
  1. Mac Pro
Classic Mac
  1. 0
Mobile Phone
  1. iOS
I have a 2 cpu 12 core system with Supermicro mobo X8DTL.....I have followed all the suggested ways to install El Capitan, both to no avail. Clover works fine, I have used it for 6 months with Yosemite with no errors. I keep having a kernel panic with the usb I think. I even took out my usb 3.0 card and an airport card, but still got kp.I have attached a picture of the kp. Any help is appreciated.
 

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I have tried everything in the help list....I keep getting errors with the usb....have tried different ports for the usb stick,unplugged usb 3.0 card as well as airport/bluetooth card and still can't get past kernal panic. Any other ideas would be greatly appreciated.
Thanks
 
now it gives error message

"AppleUSBXHCI::createPorts: unsupported speed mantissa <someValue> exponent <someValue>"

it does this across screen for about a minute then reboots...
 
Some people have had success using various config.plist options -- but I'm not familiar with your board some I'm not sure which might work. You can search for other threads with the same board or chipset, perhaps, and see what you come up with?

You could also try attaching everything to an external USB hub, if you have one.
 
Jeepers
GA-H87N-WIFI |  i7 4790S |  GeForce GT 740
I finally got to the installer and installed El Capitan, but now throws another error....it looks like combination of all use kexts...appleusbxhci appleusbuhci appleusbuhci

Any help is appreciated
 

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I finally got to installer again and rebooted to newly formatted El Capitan Drive.....I blocked the kext IOUSBFamily to boot and then install clover. After full install i didn't block the kext and it booted fine....everything working (iCloud, iMessage, FaceTime)...my usb 3.0 card no longer works...it causes kernel panics. Maybe this will help someone else.
Thanks.
 
+seinfeld101 When you blocked the kext did you type IOUSBFamily or IOUSBFamily.kext?
Thank you.
 
I blocked IOUSBFamily
 
Thank you. I'll give it a try.....
 
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