Greetings,
Thought I'd share my experiences trying to get USB 3.0 working on my 2008 Mac Pro without having to shell out ~$70.00 for a Sonnet Allegro or similar Mac-only USB 3.0 PCI-E card. Shame they charge such a "premium" for Mac drivers, but I digress....
I ordered the "Pluggable Superspeed USB PCI-E" card from Amazon for $25.95
I downloaded the Lacie drivers from their site
I downloaded and installed Kext Helper here
I downloaded a patched kext to replace Lacie's (Lacie does a drive check & if it doesn't detect a Lacie drive, it won't work).
How I got it to work:
1. Unzip the patched kext (named PXHCD.kext) to your Desktop
2. Run the Lacie installer for your version of OSX Do NOT restart.
3. Run Kext Helper. Drag the PXHCD.kext from your Desktop into the Kext Helper window. Input your user password. Let it do its thing.
4. Kext Helper will tell you to "Reboot and pray". QUIT Kext Helper
4a. Kext Helper may not quit. Don't worry. Just FORCE QUIT.
5. Reboot. Enjoy USB 3.0 on your Mac for less than half the price!
I tested using a Western Digital WD4000KD in a Thermaltake BlacX 5G USB 3.0 adapter. My disk speed tests in AJA showed about 62 MB/s read / write using a 1.0 GB test file and Video Frame Size of NTSC DV25. I also tested my internal Western Digital Caviar Green which only got about 42 MB/s speeds.
ENJOY !!!!!![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
** Update. When looking in System Profiler, the "Link Speed" is only showing 2.5 GT/s, vice 5.0GT/s as someone else's screenshot showed. And when I look under USB in System Profiler, the hard disk is identified under Superspeed USB as being capable of up to 480 Mb/s, which happens to be USB 2.0 speed. Weird. Still though, the disk tested faster than an internal SATA Caviar green.
***** Edit: This is on 10.6.8 Snow Leopard. I don't want ML on my Mac Pro. *****
Thought I'd share my experiences trying to get USB 3.0 working on my 2008 Mac Pro without having to shell out ~$70.00 for a Sonnet Allegro or similar Mac-only USB 3.0 PCI-E card. Shame they charge such a "premium" for Mac drivers, but I digress....
I ordered the "Pluggable Superspeed USB PCI-E" card from Amazon for $25.95
I downloaded the Lacie drivers from their site
I downloaded and installed Kext Helper here
I downloaded a patched kext to replace Lacie's (Lacie does a drive check & if it doesn't detect a Lacie drive, it won't work).
How I got it to work:
1. Unzip the patched kext (named PXHCD.kext) to your Desktop
2. Run the Lacie installer for your version of OSX Do NOT restart.
3. Run Kext Helper. Drag the PXHCD.kext from your Desktop into the Kext Helper window. Input your user password. Let it do its thing.
4. Kext Helper will tell you to "Reboot and pray". QUIT Kext Helper
4a. Kext Helper may not quit. Don't worry. Just FORCE QUIT.
5. Reboot. Enjoy USB 3.0 on your Mac for less than half the price!
I tested using a Western Digital WD4000KD in a Thermaltake BlacX 5G USB 3.0 adapter. My disk speed tests in AJA showed about 62 MB/s read / write using a 1.0 GB test file and Video Frame Size of NTSC DV25. I also tested my internal Western Digital Caviar Green which only got about 42 MB/s speeds.
ENJOY !!!!!
** Update. When looking in System Profiler, the "Link Speed" is only showing 2.5 GT/s, vice 5.0GT/s as someone else's screenshot showed. And when I look under USB in System Profiler, the hard disk is identified under Superspeed USB as being capable of up to 480 Mb/s, which happens to be USB 2.0 speed. Weird. Still though, the disk tested faster than an internal SATA Caviar green.
***** Edit: This is on 10.6.8 Snow Leopard. I don't want ML on my Mac Pro. *****
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