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Fix for Slow Boot on Thunderbolt 2.0 Motherboards

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tonymacx86

Administrator
Staff member
Joined
Nov 17, 2009
Messages
7,368
Motherboard
Z370N WIFI
CPU
i7 8700K
Graphics
HD 630
Mac
  1. MacBook Air
Classic Mac
  1. Apple
  2. PowerBook
Mobile Phone
  1. iOS
Problem:
If you have a Thunderbolt 2.0 motherboard, such as the Gigabyte Z87X-UD7-TH, there is a boot time delay of 45 seconds or so when Thunderbolt peripherals are attached.

Solution:
For Chimera/Chameleon, delete /System/Library/Extensions/AppleThunderboltNHI.kext, rebuild cache and reboot.

1. Open Terminal
2. Type the following and enter password:

Code:
sudo -s

Code:
cp -R /System/Library/Extensions/AppleThunderboltNHI.kext ~/Desktop

Code:
rm -R /System/Library/Extensions/AppleThunderboltNHI.kext

Code:
touch /System/Library/Extensions

3. Reboot system, and the delay is gone!

Thanks to Genzai in the Thunderbolt 2.0 Testing thread here. :thumbup:
 
Problem:
If you have a Thunderbolt 2.0 motherboard, such as the Gigabyte Z87X-UD7-TH, there is a boot time delay of 45 seconds or so when Thunderbolt peripherals are attached.

Solution:
For Chimera/Chameleon, delete /System/Library/Extensions/AppleThunderboltNHI.kext, rebuild cache and reboot.

1. Open Terminal
2. Type the following and enter password:

Code:
sudo -s

Code:
cp -R /System/Library/Extensions/AppleThunderboltNHI.kext ~/Desktop

Code:
rm -R /System/Library/Extensions/AppleThunderboltNHI.kext

Code:
touch /System/Library/Extensions

3. Reboot system, and the delay is gone!

Thanks to Genzai in the Thunderbolt 2.0 Testing thread here. :thumbup:

Is their a way to do this without removing thunderbolt support from OSX?
 
Is their a way to do this without removing thunderbolt support from OSX?

Would this really be a fix if it removed thunderbolt functionality? Thunderbolt support isn't being removed and I suggest you read the linked thread to understand it better.
 
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