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USB3 PCIe adapter ven 0015 dev 1912 on 10.6.8 - what's the best driver for it?


Best Answer Riley Freeman, 14 October 2013 - 11:12 AM

I only have an external usb3 drive dock. And a crappy one too (can't use it at all in Windows, constant disconnects). Here's speed tests with an old WD Caviar drive. It's not a fast disk but the speeds are nearly doubled compared to when connected to the USB 2 port.

 

jn4c.pngpegf.png

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#1
Funky frank

Funky frank

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Hi,

 

i added a PCIe USB3 adapter with venid 0015 devid 1912 to my OSX 10.6.8 system. It's seems to be an NEC upd720202 chipset.

 

I finally found a driver here that's working without system performance problems: http://www.tonymacx8...html#post602026

 

The only problem is now that my USB3 external harddrive shows up as an USB2 device in the system profiler:

 

Attached File  Bildschirmfoto 2013-10-12 um 15.02.12.png   37.54KB   1 downloads

 

Any ideas how to enable full USB3 support on my OSX 10.6.8 system?

 

Thanks!

 



#2
Riley Freeman

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Try benchmarking the drive to see what speeds you get. I'm using the same kext and am pretty sure it's running at the right speeds, just reporting the wrong speed to System Profiler. 



#3
Funky frank

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Riley Freeman, Iam not sure about this. The benchmark (xbench) shows the following results:

 

Attached File  Bildschirmfoto 2013-10-14 um 11.45.05.png   34.03KB   0 downloads

 

 

dmesg / boot log shows the following message:

 

 

USBF: 11.931 Endpoint 0x81 of the USB device "My Drive 2.5''" at location 0x200000:  converting Bulk MPS from 1024 to 512 (USB 2.0 Spec section 5.8.3)

USBF: 11.939 Endpoint 0x2 of the USB device "My Drive 2.5''" at location 0x200000:  converting Bulk MPS from 1024 to 512 (USB 2.0 Spec section 5.8.3)
 

 

What benchmarks do you have using a usb3 external hdd?



#4
Riley Freeman

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Best Answer

I only have an external usb3 drive dock. And a crappy one too (can't use it at all in Windows, constant disconnects). Here's speed tests with an old WD Caviar drive. It's not a fast disk but the speeds are nearly doubled compared to when connected to the USB 2 port.

 

jn4c.pngpegf.png



#5
Funky frank

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Riley Freeman, thanks. I also used an USB2 extension cable which caused a USB2 fallback.

 

Speeds directly connected USB3 using AJA:  Write 34 MB/s, Read 87 MB/s



#6
Riley Freeman

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Nice. Yeah the extension cable would have been the culprit there speed-wise.







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