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Thread: ASUS A7V333 and USB2 issue




  1. #1
    Join Date
    Sep 2002
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    4

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    I have an ASUS A7V333 mobo without RAID but with USB2 onboard. I have a PCI-card from siliconimages (ATA133) and 2 Maxtor 40 Gb in RAID 0. I have a Canon scanner, D1250U2, for use of USB2.
    When VIA USB2 Enhanged Host Controller is active, the RAID-performance is falling 40%!!
    If I deactivate the USB2 EHC, then the RAID-performance is back to normal.

    I have found WHQLcertified drivers for the RAID-controller and for VIA USB2, but that did not help. Any ideas? :confused:
    Kind regards
    Tarzan

  2. #2
    Join Date
    Nov 2001
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    2,464

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    have you installed the USB2 Drivers off the Asus site?

  3. #3
    Join Date
    Sep 2002
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    4

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    Yes, I started with the original drivers from the ASUS CD. Then I went to ASUS update to download the new USB2 ver 2.02, but that did not help. Then I got WHQL certified drivers for my RAID-controller. Still the same issue. And the last thing I tried was the new WHQL-driver for VIA's USB2 (not mobo specific). Meaning, that both the RAID controller and the USB2 is WHQL certified for WIndowsXP.

    Oh, by the way. The 40% down is readable with Sisoft Sandra and HDTach 2.61.
    Kind regards
    Tarzan

  4. #4
    Join Date
    Aug 2002
    Location
    Ohio, USA
    Posts
    1,296

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    Are the raid card and the USB controllers sharing resources? What os are you running? If it is xp, has it been updated with MS usb support?

  5. #5
    Join Date
    Sep 2002
    Posts
    4

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    Windows XP has been updated with all on WindowsUpdate section.
    RAID controller and USB2 EHC has different IRQ and I/O.

    I can't see any logical connection between these two.
    Kind regards
    Tarzan

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