Waldron Digital

Slow USB and Shutdown Problems on Hackintosh After System Update

with 9 comments

Every time I update my Hackintosh (P5WDH mobo) with the latest version of Mac OS I lose USB 2.0 speeds (all ports go to 1.1 speeds) and my system refuses to completely shutdown. The fix:

Delete AppleHPET.kext from /System/Library/Extensions

USB is flying and my systems sleeps and shuts down!

Quick and dirty:
Using Finder, copy the Kext to the desktop or somewhere as a backup (or you can use OSX86Tools too). Better be safe than sorry!
sudo rm -r /System/Library/Extensions/AppleHPET.kext

Written by Mike Waldron

July 11th, 2009 at 11:05 am

Posted in Projects,Technology

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9 Responses to 'Slow USB and Shutdown Problems on Hackintosh After System Update'

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  1. AWESOME! You rock! I was trying to figure this out. THANK YOU!!!

    CITmAn

    4 Aug 09 at 3:36 pm

  2. Hey! that’s great! I had such problem, and i couldn’t find a right solution! but this way worked great for me! It was so importaint, cause i have alot of external HDDs. My mobo is asus P5w64pro, system 10.5.8

    Thanx!!!

    DJ Krypton

    24 Aug 09 at 5:46 am

  3. Thank you so much.
    not only has usb speed increased, but also editing stuff in itunes has become faster.

    Davisco

    24 Feb 10 at 8:13 am

  4. Whoohoo thanks!

    Before this fix, Disk Utility was taking 2 hours to write a 3.8 G image to USB stick, now it’s down to about 10 minutes.

    Charl Botha

    5 May 10 at 4:56 am

  5. On 10.6 reporting works thanks dude you are amzing

    this is for google

    slow USB and unresponsive USB ports and no USB2 connection on 10.6 snow leopard and shutdown errors

    AMG

    8 May 10 at 3:08 pm

  6. This hack still works with 10.6!?! Wowza. My little hack still running 10.5.8 like a champ.

    Mike Waldron

    19 May 10 at 8:06 pm

  7. man thanks works like a charm, before my laptop didnt shut down and i didnt know it was still running and i just put it in the bag and it would heat up, then i noticed this and googled it with no help found ur post and works like a charm keep up the good work.

    balli

    2 Jul 10 at 5:39 am

  8. Dude, saved me a ton of time – this was bugging me forever, and my iPad syncs were slow!

    Thanks for the fix!

    Warren

    20 Aug 10 at 7:32 pm

  9. [...] figured it was time to figure out the root of the problem. A quick google search brought me to this site, and what proved to be a quick and easy fix to my problem. If you are too lazy to click through, [...]

    From the Ground Up » Snow Leopard and USB 2.0 Problems

    7 Sep 10 at 6:26 am

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