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New Yosemite installation was working perfectly until...........

Joined
Feb 28, 2015
Messages
133
Motherboard
MSI Z97M Gaming
CPU
Intel Core i7 4790K s1150
Graphics
Asus Strix GTX960 2Gb
Mac
  1. MacBook Pro
  2. Mac Pro
Classic Mac
Mobile Phone
  1. iOS
My latest build had been working fine until I realised the USB3 ports were not working so using MultiBeast I installed the universal USB3 kext's. Now everything is stable until I turn on my USB printer or insert anything in the USB ports, when I do the machine instantly freezes. If I turn the printer on before I start the machine it boots OK but freezes shortly after reaching the desktop.

This build is using an MSI Z97M Gaming motherboard.
 
Joined
Feb 28, 2015
Messages
133
Motherboard
MSI Z97M Gaming
CPU
Intel Core i7 4790K s1150
Graphics
Asus Strix GTX960 2Gb
Mac
  1. MacBook Pro
  2. Mac Pro
Classic Mac
Mobile Phone
  1. iOS
My latest build had been working fine until I realised the USB3 ports were not working so using MultiBeast I installed the universal USB3 kext's. Now everything is stable until I turn on my USB printer or insert anything in the USB ports, when I do the machine instantly freezes. If I turn the printer on before I start the machine it boots OK but freezes shortly after reaching the desktop.

This build is using an MSI Z97M Gaming motherboard.

I have now removed the Universal USB3 Kexts but the problem still exists. When I insert any USB device into a USB 2.0 or USB 3.0 port the machine freezes and I have to reboot using the power button. Other than this the machine is perfectly stable.

Does anyone have any idea's why this is happening?
 
Joined
Apr 5, 2012
Messages
117
Motherboard
MSI Z270 Gaming Pro Carbon
CPU
i5-7600
Graphics
RX 570
Mobile Phone
  1. Android
No idea why this is happening, but I have found this to work in Yosemite where the MultiBeast supplied USB3 kext did not:

Patched AppleUSBXHCI v710.4.11 (10.10.5)

You could also try resetting optimized defaults in the BIOS and then resetting the necessary items for your motherboard before booting.
 
Joined
Feb 28, 2015
Messages
133
Motherboard
MSI Z97M Gaming
CPU
Intel Core i7 4790K s1150
Graphics
Asus Strix GTX960 2Gb
Mac
  1. MacBook Pro
  2. Mac Pro
Classic Mac
Mobile Phone
  1. iOS
[SOLVED] New Yosemite installation was working perfectly until...........[SOLVED]

After advice I downloaded and ran 'Kext Utility', this seems to have cured the lockups and the machine is once again stable.
 
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