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At 08:39 AM 3/8/2004, Elizabeth Mabrey wrote:
> As Mike pointed out, it is a hyper-threading problem. The reason for
> winXP not working, but W2K works, may very well be that W2K does not
> support hyperthreading feature, but WinXP does. I wonder if Mike or
> anyone does indeed disable the hyper-threading feature to test without the
> patch first. If the driver works without the patch works just by disabling
> the hyper-threading feature, we can truly conclude the only issue is the
> hyper-threading.
>
> I have already removed winxp a while ago, so I cannot test that. I have
> been deterred from upgrading to windows 2003 because of the usb driver
> issue. Win2003 indeed supports hyper-threading. However, before I dive
> into installing win2003, I wonder if anyone has proved that the winxp will
> work with the hyper-threading feature disabled (usually from the bios)
> without the patch.
Someone who's name I forget (you know who you are!) said definitely that
hyperthreading cannot be simply disabled in BIOS - that Windows has to be
reinstalled with a non-hyperthreading kernel.
And to answer your musings in the first paragraph...yes, we did testing on
non-HT machines (all of the major Windows flavors, I believe) with the USB
Tower and it worked fine before the patch was built. It's only when
hyperthreading became an issue that the towers started malfunctioning.
~Mike
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