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usb 3.0 pci express runs as slow as usb 2.0...

hi,
i've just bought this pci express card:
http://www.nilox.com/it/scheda/nilox/10NX0512U3001.htm

the card has been installed on asus p6t se mobo, using the PCIEX16_3 connector.

it is supposed to give usb 3.0 functionality with kernel >= 3.6 (i'm running ubuntu 14.04 64bit with kernel 3.13), but i can only get a read speed of about 35mb/s (just like usb 2.0), when the same external disk on another computer with built-in usb 3 plugs is read at ~ 100mb/s...

here is the lspci record:

Code:

01:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)

any hint on how to debug this?

Are you plugging in usb2 devices to the usb3 port ?

Quote:

Originally Posted by John VV (Post 5185276)

Are you plugging in usb2 devices to the usb3 port ?

no, i used 2 different usb3 devices (1 external hp drive and 1 trascend usb stick).

Code:

$ lsusb

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 008 Device 002: ID 058f:9254 Alcor Micro Corp. Hub

Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 007 Device 002: ID 045e:074f Microsoft Corp. 

Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 006 Device 002: ID ffff:0000  

Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 001 Device 003: ID 1307:0330 Transcend Information, Inc. 63-in-1 Multi-Card Reader/Writer

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 004 Device 002: ID 045e:0750 Microsoft Corp. Wired Keyboard 600

Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 009 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 010 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

https://bbs.archlinux.org/viewtopic.php?pid=1203515

Seems to be a stinker of a card.

Quote:

Originally Posted by jefro (Post 5185905)

https://bbs.archlinux.org/viewtopic.php?pid=1203515

Seems to be a stinker of a card.

thank you, i've already tried flashing the card with a new firmware... but with no success: flashing process stays at 0% until i reboot the pc... i found at least 3 different flashing how-to guides, but none of them lead to any result...

Keep trying to get the update on it.