Asus U3S6 USB3.0 weird quirks

installed the card into my second pic-e x16 slot, installed drivers for it, and it works!

Now the problem is...


every 2 boot-up of my computer, it is recoginzed and works in windows.

after the 3rd boot-up, it's not recoginized, and have to reinstall Marvel driver to get it recoginized again... How do i make it "stick"?
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More about asus u3s6 usb3 weird quirks
  1. What USB 3.0 devices are you using?
  2. i don't have any, i used usb 2.0 external WD drive to test it... i left it plugged into the card when i booted up the comp, maybe that has something to do with it....

    Damn, when will there be native Window support for usb 3?
  3. anyone know?
  4. could be compatibility issues, U3S6 are compatible with only selected of motherboards, here is their compatibility list on the asus website:

    Compatible motherboards:
    Maximus III Formula
    P7P55D Deluxe
    P7P55D EVO
    P7P55D PRO
    P7P55D
    P7P55D LE
    P7P55 LX
    P7P55 WS Supercomputer
    P6T Deluxe
    P6T Deluxe V2
    P6TD deluxe
    P6T SE
    Rampage II Extreme
    Rampage II Gene
    M4A79T Deluxe
    M4A785TD-V EVO
    M4A77TD PRO
    M4A79T Deluxe/U3S6
    M4A77TD PRO/U3S6
    M4A785TD-V EVO/U3S6

    you could try to flash your motherboard bios to the newest version, and then try to update the firmware on U3S6 to the newest version as well. download the latest firmware here: http://www.asus.com/product.aspx?P_ID=lGYmelQ8mJvPtYTv
    I also have a U3S6 and I had to deal with compatibility issues at first as well, however, after updating everything to their newest version, everything worked fine.
  5. where's the newest firmware? i know where to get the latest bios...

    is beta bios OK? and, i am looking for the latest Marvel 91xx AHCI drivers...
  6. click on "download" tab, pick your OS version, and browse open "USB" there is a "NEC USB3.0 Controller firmware updater V3.0.2.1 for Windows XP / Vista / Win7 32&64bit" under there.
  7. nvm, asus card works every time it boots up... i dunno what the hell happened, it just works now? :heink:
  8. Can anyone boot off of a SATA DVD drive connected to the U3S6? Although my SONY DRU-V200S is detected by the U3S6 it will not boot from any bootable CD/DVD, it just hangs. Worse yet although the drive is recognized under all OS (XP, XP64, linux) any loaded CD/DVD is inaccessible (no medium found or timeout error). My U3S6 has the latest firmware (V3.0.2.1) and I've tried the Windows drivers listed by Asus. The only thing that works for the DRU-V200S is 'eject', but that's hardly useful if the CD/DVD can't be mounted. I specifically bought the U3S6 because it's an Asus product which Asus claims is compatible with my P6T Deluxe motherboard. I'm out of ideas.

    If anyone is successfully booting/using a CD/DVD drive via the U3S6 please post your U3S6 firmware version. If this is on an Asus motherboard please include your BIOS version. Thanks.
  9. why not connect the cd/dvd to the motherboard and boot it that way?

    I'm not even going to bother to test if my dvd drive boots off my U3S6 because I see absolutely no point in doing this.
  10. the card is meant for Sata 6gb Hard drives as well as USB3 stuff... DVD drives are just fine with regular SATA 3 and lower.
  11. arterius2 said:
    why not connect the cd/dvd to the motherboard and boot it that way?

    I'm not even going to bother to test if my dvd drive boots off my U3S6 because I see absolutely no point in doing this.


    If you never need to boot off a CD/DVD more power to ya. All my mobo SATA ports are used, but I'd still like to make use of the SATA DVD which is faster and more convenient than an external USB 2.0 CD/DVD drive. Seems if you can boot off of a U3S6 connected hard drive then it ought to be possible for a CD/DVD drive as well especially since the motherboard BIOS sees it as a boot device.
  12. Chronobodi said:
    the card is meant for Sata 6gb Hard drives as well as USB3 stuff... DVD drives are just fine with regular SATA 3 and lower.


    Hmm, no. It's backwards compatible with SATA 1.5 which is what almost all SATA CD/DVD drives are. Besides, Asus Tech Support would have pointed that out to me in my recent support request. They know there is a problem, they just don't know what yet.
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