Hard drive problem with Sierra

Hi, everyone.

I've searched the forums but could not find any threads that could help me.

I'm running a Hackinstosh with a Gigabyte Z87M-D3H motherboard, Nvidia GeForce GTX-760 graphics card, Intel Core i5 4670 3.4Ghz (more info attached and Multibeast settings as well) and since I upgraded to Sierra I've been having these issues with my hard drives, most of them with a Seagate Expansion Deck mounted via USB 3.0.

The Seagate external HDD often ejects itself. Sometimes, when it is mounted, it is very slow and I can't read most of the files in it.

Sometimes my secondary internal HDD (main drive is a SSD; Sierra is running in this one) gets very slow too.

Most of the times when I try to run Disk Utility to see if I can mount the external drive, either it doesn't show any external hdd connected or ir doesn't load the drive list at all.

Does anyone have a clue of what might be wrong with my install?

Thanks a lot!


Config screenshots:

Im having the same exact issue with all of my external HDD's. When I plug in USB one never shows up, the other shows up immediatly in the system report, and then a couple minutes after plugging in will show up on the computer, then less then a minute later eject itself "improperly"

I cant seem to find any help with the issue.

Do you fakePCIID and fakePCIID_XHCI kexts installed?

bhollehday said:

Im having the same exact issue with all of my external HDD's. When I plug in USB one never shows up, the other shows up immediatly in the system report, and then a couple minutes after plugging in will show up on the computer, then less then a minute later eject itself "improperly"

I cant seem to find any help with the issue.

Do you fakePCIID and fakePCIID_XHCI kexts installed?

Click to expand...

No, I haven't installed any extra Kexts...

lmatoso said:

No, I haven't installed any extra Kexts...

Click to expand...

Is this a fresh copy of Sierra? How did you install it? Was it a direct update from sierra? Do you use clover or multibeast?

Sounds like a tricky problem.

On looking at your MultiBeast settings I think that maybe the SATA and USB settings are unnecessary. The motherboard uses Intel USB and SATA controllers, not the 3rd Party ones selected. Just a thought.

USB 3.0 needs careful checking for Sierra. Rehabman's kexts might be beneficial?

Could be pointers to the problems?

This fixed my problem:

https://www.tonymacx86.com/threads/usb-new-raise-port-limit-patch-for-macos-10-12-sierra.202329/


Also read

https://www.tonymacx86.com/threads/osx-el-capitan-tips-for-fixing-intel-usb.174002/

And

https://www.tonymacx86.com/threads/guide-10-11-usb-changes-and-solutions.173616/