acidos77 Posted November 16, 2011 Share Posted November 16, 2011 I've installed Lion on my PC(configuration in signature), it's almost vanilla (only network kext added and patched HDA). However, USB external hard with enclosure drive transfer rate is very slow, although System Info shows USB 2.0(however states 12Mbit/s throughput, which I believe is 1.1). The same Hard drive, connected same way, gives around 60MB/sec speed on Windows 7, same PC. Do I need any USB fix for that? I made my own dsdt.aml Link to comment https://www.insanelymac.com/forum/topic/272243-installed-lion-but-usb-is-very-slow/ Share on other sites More sharing options...
nebuluz Posted November 18, 2011 Share Posted November 18, 2011 You can try to add: USBLegacyOff=Yes Manualy at startup or add it to Boot.plist Link to comment https://www.insanelymac.com/forum/topic/272243-installed-lion-but-usb-is-very-slow/#findComment-1771605 Share on other sites More sharing options...
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