USB Devices suddenly disconnect, Yosemite 10.10

[hallosuper]

Hi Guys,
I just installed my OSX Yosemite 10.10 via UniBeast on my PC, afterwards I made the steps with
MultiBeast. Everything works, except for one thing.
My TimeMachine drive doesnt work! Its a 500 gb USB Drive and it worked fine with my old iMac, but everytime I try to make a Backup it suddenly disconnects after a few seconds, no matter if connected to USB 2.0 or 3.0.

My Specs are:
Core I3 4330,
Mainboard Z87M-D3H
4 GB DDR 3
750 GB Sata
Nvidia GT 210

I would be so thankful for help!

 

[Adrian B]

I don't know if it might be related to this issue that some GT 210 users have experienced:
http://www.tonymacx86.com/audio/109902-usb-start-up-problem-aka-audio-problem.html

If you use the HD4600 graphics do you have the same USB issue?

 

[hallosuper]

Thanks for the tip, i tried it out but in the end, theres no difference, my device still disconnects!
I never got my HD 4600 working, thats why I switched to a GT 210.
If anyone knows somethimg about making the HD 4600 work, I would of course be really thankful!

 

[Adrian B]

Thanks for the tip, i tried it out but in the end, theres no difference, my device still disconnects!
I never got my HD 4600 working, thats why I switched to a GT 210.
If anyone knows somethimg about making the HD 4600 work, I would of course be really thankful!

Try the Graphics part of the forum:
http://www.tonymacx86.com/graphics/

 

[hallosuper]

Okay, so I got my HD 4600 Kind of working, not perfectly, but this won't fix the error either, my USB Drive still disconnects constantly. I would be so thankful if anybody would have another idea!

 

[Adrian B]

Okay, so I got my HD 4600 Kind of working, not perfectly, but this won't fix the error either, my USB Drive still disconnects constantly. I would be so thankful if anybody would have another idea!

There is this thread here:
http://www.tonymacx86.com/general-help/149712-messed-up-my-system-please-help-2.html

It might be worth trying something like this as a test installation. Failing that I would seriously consider using a DSDT and patching to fix the USB & probably some other things as well.
http://www.tonymacx86.com/dsdt/83565-native-dsdt-aml-ide-compiler-maciasl-open-beta.html
http://www.tonymacx86.com/dsdt/89727-maciasl-patch-repository-thread.html
http://www.pjalm.com/forums/