Re: Hardware mystery . . . USB 2.0 on a USB 1.1 chip???
- From: "fj" <jelenko@xxxxxxx>
- Date: Fri, 21 Oct 2005 01:16:15 GMT
"David Maynard" <nospam@xxxxxxxxxxx> wrote in message
news:11lftia1el57ie5@xxxxxxxxxxxxxxxxxxxxx
> Mike T. wrote:
>
>> Long story short, I'm rebuilding a system for a friend who is on an
>> extremely tight budget. He had a power supply failure recently that
>> killed his mainboard. He could afford a new (high quality) power supply
>> and a cheap new mainboard and nothing else. I saved as much data as I
>> could (using another system), then wiped the hard drive and reinstalled
>> his copy of Windows ME (yeah, I know, but it's not my system) from
>> scratch, due to the chipset change. System is up and running and
>> rock-solid stable, with only one problem . . .
>>
>> If the onboard sound is enabled, system will not boot. Or sometimes it
>> boots, but then is extremely unstable. No conflicts are SHOWING in
>> device manager, but the sound card insists on sharing a IRQ (whatever
>> IRQ) with a USB Host Controller, "VIA 3038". I can change the IRQ in the
>> BIOS for the USB controllers. But if I do, the onboard sound IRQ changes
>> to match, so this accomplishes nothing. (IRQ conflict just moves to a
>> DIFFERENT IRQ)
>
> Your description suggests they're using the same physical IRQ on the
> motherboard.
>
>> According to device manager, FIVE of these VIA 3038 are on the mainboard,
>> but one is not working correctly. (the other four are) It is the one
>> that is not working correctly that is conflicting with the onboard sound,
>> causing the system to not boot (or be extremely unstable). If I disable
>> the non-working VIA 3038 UHC and re-enable the onboard sound, this helps
>> somewhat. (system runs more stable that way, but not enough that I'd be
>> willing to depend on it). This system has the latest BIOS, runs the
>> latest 4-in-1 drivers, and has the USB patch installed from viaarena.
>> All updates from Microsoft have been downloaded and installed. System
>> scores well over 5000 on 3DMark03 (not bad, for a non-gaming system),
>> runs Memtest and CPU Stability (either one) for many hours with no
>> errors. But this is only with the onboard sound disabled in the BIOS! I
>> threw in an older Turtle Beach PCI sound card for testing, so I know that
>> the system can run rock-solid stable (and with SOUND, also), but not if
>> the onboard sound is enabled.
>>
>> Now obviously, I could just give him the turtle beach card (or another
>> sound card), leave the onboard sound disabled and be DONE with the
>> matter. IF it aint broke, don't fix it. BUT, in trying to research this
>> issue, I discovered something really odd:
>>
>> According to the web site, this mainboard is supposed to support 8X
>> USB2.0 ports. See:
>> http://www.biostar-usa.com/mbdetails.asp?model=p4m80-m4
>>
>> But the working VIA 3038 USB Host Controllers (4 of them) and the
>> NON-WORKING one that is causing the conflict with onboard sound, are
>> apparently USB 1.1. See:
>> http://www.viaarena.com/default.aspx?PageID=420&OSID=5&CatID=1330&SubCatID=121
>>
>> I've already e-mailed Biostar (maker of the mainboard) to ask about this,
>> and got no response.
>>
>> Is it possible that Windows (ME) has mis-identified the USB Host
>> Controller? IF so, shouldn't the latest 4-in-1 drivers (already
>> installed) solve that issue? There is no separate USB driver, so
>> updating that is not an option.
>>
>> How is it that I've apparently got TEN USB 1.1 ports (including two that
>> would be running off a non-functional Host Controller) on a board that is
>> supposed to have EIGHT USB 2.0 ports????
>
> Just off hand I'd say you don't have 10 when there are 8 and that would
> seem to be confirmed by the 'non-functional' two, because they aren't
> there.
>
> Yes. Windows can misidentify hardware and, worse, it often 'saves' that
> misinformation even when the driver is removed (the registry entry
> remains).
Is this true for Win 2K and Win XP as well? I've had lots of experience
with this type of problem in Win 95 and Win 98, but don't seem to have run
into it in Win XP or Win 2K.
Thanks
>
> Just off hand I'd guess it mistakenly identified a piece of the on-board
> sound card as a USB Host controller.
>
> Not sure this will work but I'd try deleting each of the working USB ports
> one at a time and then telling it to not install anything when they're
> redetected, to get them out of the way (the point is to avoid being
> confused as to which USB host controller it's trying to install on the
> reboots: the 'good ones' or the 'bad one'). Then remove both the sound
> card drivers and the 'non-functional' USB port and let it redetect on the
> next reboot. If you're lucky, since all of that should be 'sound card'
> bits maybe it'll figure it out. If not I'd then try manually reinstalling
> the 'non-functional' USB Host controller pointing to the sound card
> drivers and hope it figures out which section it is. Then reinstall the
> working USB host controllers.
>
>
>
>> Can anybody shed some light on this? -Dave
>>
>>
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>
.
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