Windows Vista Forums

Dual core, only sees one
  1. #1


    Bill Leary Guest

    Dual core, only sees one

    I'm running Vista Ultimate 32 bit.

    I've had a single-core AMD Athlon in here since I build the machine and
    installed Vista.

    I just updated to a Dual core AMD Athlon.

    When I first powered up, the BIOS reported an unknown model AMD with two
    cores. Vista, in System Information, reported an unknown AMD with a single
    core. So, I updated the BIOS. The BIOS now reports the correct AMD with
    two cores. Vista, in System Information, now reports the correct AMD, but
    with one core, one logical processor. Performance meter and other things
    which would normally show two dials or scales for a dual core still show
    only a single display.

    Someone suggested I check Processors under Device Manager. That shows "AMD
    Processor unknown model" twice. They suggested that Vista is "stuck" from
    the start up with the BIOS that didn't ID the CPU and I should delete the
    two entries under Processor and reboot to let it rediscover them. I've seen
    this work for other things, but I'm feeling a bit cautious about doing it to
    the CPU.

    Is this the right way to go? Any other ideas?

    - Bill




      My System SpecsSystem Spec

  2. #2


    philo Guest

    Re: Dual core, only sees one


    "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    > I'm running Vista Ultimate 32 bit.
    >
    > I've had a single-core AMD Athlon in here since I build the machine and
    > installed Vista.
    >
    > I just updated to a Dual core AMD Athlon.
    >
    > When I first powered up, the BIOS reported an unknown model AMD with two
    > cores. Vista, in System Information, reported an unknown AMD with a
    single

    > core. So, I updated the BIOS. The BIOS now reports the correct AMD with
    > two cores. Vista, in System Information, now reports the correct AMD, but
    > with one core, one logical processor. Performance meter and other things
    > which would normally show two dials or scales for a dual core still show
    > only a single display.
    >
    > Someone suggested I check Processors under Device Manager. That shows
    "AMD

    > Processor unknown model" twice. They suggested that Vista is "stuck" from
    > the start up with the BIOS that didn't ID the CPU and I should delete the
    > two entries under Processor and reboot to let it rediscover them. I've
    seen

    > this work for other things, but I'm feeling a bit cautious about doing it
    to

    > the CPU.
    >
    > Is this the right way to go? Any other ideas?
    >
    > - Bill
    >

    Though that may work,
    you can treat the cpu as any other hardware device and opt to "update
    drivers"

    then choose the appropriate one



      My System SpecsSystem Spec

  3. #3


    Earle Horton Guest

    Re: Dual core, only sees one

    "philo" <philo@xxxxxx> wrote in message
    newsuudnTu999sDaNfUnZ2dnUVZ_t7inZ2d@xxxxxx

    >
    > "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    > news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    >> I'm running Vista Ultimate 32 bit.
    >>
    >> I've had a single-core AMD Athlon in here since I build the machine and
    >> installed Vista.
    >>
    >> I just updated to a Dual core AMD Athlon.
    >>
    >> When I first powered up, the BIOS reported an unknown model AMD with two
    >> cores. Vista, in System Information, reported an unknown AMD with a
    > single

    >> core. So, I updated the BIOS. The BIOS now reports the correct AMD with
    >> two cores. Vista, in System Information, now reports the correct AMD,
    >> but
    >> with one core, one logical processor. Performance meter and other things
    >> which would normally show two dials or scales for a dual core still show
    >> only a single display.
    >>
    >> Someone suggested I check Processors under Device Manager. That shows
    > "AMD

    >> Processor unknown model" twice. They suggested that Vista is "stuck"
    >> from
    >> the start up with the BIOS that didn't ID the CPU and I should delete the
    >> two entries under Processor and reboot to let it rediscover them. I've
    > seen

    >> this work for other things, but I'm feeling a bit cautious about doing it
    > to

    >> the CPU.
    >>
    >> Is this the right way to go? Any other ideas?
    >>
    >> - Bill
    >>
    >
    >
    > Though that may work,
    > you can treat the cpu as any other hardware device and opt to "update
    > drivers"
    >
    > then choose the appropriate one
    >
    >
    Yeah, he needs the right driver. Since it's a home-built machine maybe
    there's a driver on the CD that came with the motherboard?

    Cheers,

    Earle



      My System SpecsSystem Spec

  4. #4


    Michael Walraven Guest

    Re: Dual core, only sees one

    It is possible that Vista has not properly detected your hardware changes.
    I suggest
    msconfig
    boot tab
    advanced options button

    check the box for detect HAL (Hardware Abstraction Layer) and reboot, Vista
    MAY find the two cores.

    If that didn't find the two cores, and the 'bad' ones are in device manager
    then I would try the suggestion to delete them.

    Good Luck,
    Michael



    "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    > I'm running Vista Ultimate 32 bit.
    >
    > I've had a single-core AMD Athlon in here since I build the machine and
    > installed Vista.
    >
    > I just updated to a Dual core AMD Athlon.
    >
    > When I first powered up, the BIOS reported an unknown model AMD with two
    > cores. Vista, in System Information, reported an unknown AMD with a
    > single core. So, I updated the BIOS. The BIOS now reports the correct
    > AMD with two cores. Vista, in System Information, now reports the correct
    > AMD, but with one core, one logical processor. Performance meter and
    > other things which would normally show two dials or scales for a dual core
    > still show only a single display.
    >
    > Someone suggested I check Processors under Device Manager. That shows
    > "AMD Processor unknown model" twice. They suggested that Vista is "stuck"
    > from the start up with the BIOS that didn't ID the CPU and I should delete
    > the two entries under Processor and reboot to let it rediscover them.
    > I've seen this work for other things, but I'm feeling a bit cautious about
    > doing it to the CPU.
    >
    > Is this the right way to go? Any other ideas?
    >
    > - Bill
    >

      My System SpecsSystem Spec

  5. #5


    i love vista Guest

    Re: Dual core, only sees one

    you must reinstall since the proper HIVE is not loaded



    "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    > I'm running Vista Ultimate 32 bit.
    >
    > I've had a single-core AMD Athlon in here since I build the machine and
    > installed Vista.
    >
    > I just updated to a Dual core AMD Athlon.
    >
    > When I first powered up, the BIOS reported an unknown model AMD with two
    > cores. Vista, in System Information, reported an unknown AMD with a
    > single core. So, I updated the BIOS. The BIOS now reports the correct
    > AMD with two cores. Vista, in System Information, now reports the correct
    > AMD, but with one core, one logical processor. Performance meter and
    > other things which would normally show two dials or scales for a dual core
    > still show only a single display.
    >
    > Someone suggested I check Processors under Device Manager. That shows
    > "AMD Processor unknown model" twice. They suggested that Vista is "stuck"
    > from the start up with the BIOS that didn't ID the CPU and I should delete
    > the two entries under Processor and reboot to let it rediscover them.
    > I've seen this work for other things, but I'm feeling a bit cautious about
    > doing it to the CPU.
    >
    > Is this the right way to go? Any other ideas?
    >
    > - Bill
    >

      My System SpecsSystem Spec

  6. #6


    Bill Leary Guest

    Re: Dual core, only sees one

    "Michael Walraven" <mexxwalraven@xxxxxx> wrote in message
    news:u5cumpXYJHA.2084@xxxxxx

    > It is possible that Vista has not properly detected your hardware changes.
    > I suggest
    > msconfig
    > boot tab
    > advanced options button
    >
    > check the box for detect HAL (Hardware Abstraction Layer) and reboot,
    > Vista MAY find the two cores.
    I don't know if that would have worked.

    I tried "update" as someone else suggested, and that didn't work.

    > If that didn't find the two cores, and the 'bad' ones are in device
    > manager then I would try the suggestion to delete them.
    Then I deleted them and rebooted. Upon reboot, it's again got two listings
    under Processors, but this time they're correctly listed.

    System Information, however, still says "1 Cores(s), 1 Logical Processor(s)"

    - Bill


      My System SpecsSystem Spec

  7. #7


    Richard G. Harper [MVP] Guest

    Re: Dual core, only sees one

    The only dependable way to fix this is to reinstall Windows. As it was
    installed with a uniprocessor core, it sees one processor. Reinstalling
    Windows will allow it to see two processors and install the multiprocessor
    core.

    --
    Richard G. Harper [MVP Desktop] rgharper@xxxxxx
    * NEW! Catch my blog ... http://msmvps.com/blogs/rgharper/
    * PLEASE post all messages and replies in the newsgroups
    * The Website - http://rgharper.mvps.org/


    "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    > I'm running Vista Ultimate 32 bit.
    >
    > I've had a single-core AMD Athlon in here since I build the machine and
    > installed Vista.
    >
    > I just updated to a Dual core AMD Athlon.
    >
    > When I first powered up, the BIOS reported an unknown model AMD with two
    > cores. Vista, in System Information, reported an unknown AMD with a
    > single core. So, I updated the BIOS. The BIOS now reports the correct
    > AMD with two cores. Vista, in System Information, now reports the correct
    > AMD, but with one core, one logical processor. Performance meter and
    > other things which would normally show two dials or scales for a dual core
    > still show only a single display.
    >
    > Someone suggested I check Processors under Device Manager. That shows
    > "AMD Processor unknown model" twice. They suggested that Vista is "stuck"
    > from the start up with the BIOS that didn't ID the CPU and I should delete
    > the two entries under Processor and reboot to let it rediscover them.
    > I've seen this work for other things, but I'm feeling a bit cautious about
    > doing it to the CPU.
    >
    > Is this the right way to go? Any other ideas?
    >
    > - Bill
    >

      My System SpecsSystem Spec

  8. #8


    Bill Leary Guest

    Re: Dual core, only sees one

    "Richard G. Harper [MVP]" <rgharper@xxxxxx> wrote in message
    news:O21hikcYJHA.5476@xxxxxx

    > The only dependable way to fix this is to reinstall Windows. As it was
    > installed with a uniprocessor core, it sees one processor. Reinstalling
    > Windows will allow it to see two processors and install the multiprocessor
    > core.
    I was afraid it would come to that.

    Before I go that far, since a re-install would be such a pain, I've got it
    to seeing two processors, correctly identified, in Device Manager. Is there
    another approach that might work?

    Or, perhaps, something like install on another drive (I've got a pair of
    these) and copy all of C:\Windows\system32? Or the key files or
    directories? Or something similar?

    Either way, thanks.

    - Bill

    >
    > --
    > Richard G. Harper [MVP Desktop] rgharper@xxxxxx
    > * NEW! Catch my blog ... http://msmvps.com/blogs/rgharper/
    > * PLEASE post all messages and replies in the newsgroups
    > * The Website - http://rgharper.mvps.org/
    >
    >
    > "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    > news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    >> I'm running Vista Ultimate 32 bit.
    >>
    >> I've had a single-core AMD Athlon in here since I build the machine and
    >> installed Vista.
    >>
    >> I just updated to a Dual core AMD Athlon.
    >>
    >> When I first powered up, the BIOS reported an unknown model AMD with two
    >> cores. Vista, in System Information, reported an unknown AMD with a
    >> single core. So, I updated the BIOS. The BIOS now reports the correct
    >> AMD with two cores. Vista, in System Information, now reports the
    >> correct AMD, but with one core, one logical processor. Performance meter
    >> and other things which would normally show two dials or scales for a dual
    >> core still show only a single display.
    >>
    >> Someone suggested I check Processors under Device Manager. That shows
    >> "AMD Processor unknown model" twice. They suggested that Vista is
    >> "stuck" from the start up with the BIOS that didn't ID the CPU and I
    >> should delete the two entries under Processor and reboot to let it
    >> rediscover them. I've seen this work for other things, but I'm feeling a
    >> bit cautious about doing it to the CPU.
    >>
    >> Is this the right way to go? Any other ideas?
    >>
    >> - Bill
    >>
    >

      My System SpecsSystem Spec

  9. #9


    mikeyhsd Guest

    Re: Dual core, only sees one

    might think about a REPAIR install instead of a full one.

    it might help.


    mikeyhsd@xxxxxx



    "Bill Leary" <Bill_Leary@xxxxxx> wrote in message news:667E2F56-01C7-4BF9-8C9E-420DC727927A@xxxxxx
    "Richard G. Harper [MVP]" <rgharper@xxxxxx> wrote in message
    news:O21hikcYJHA.5476@xxxxxx

    > The only dependable way to fix this is to reinstall Windows. As it was
    > installed with a uniprocessor core, it sees one processor. Reinstalling
    > Windows will allow it to see two processors and install the multiprocessor
    > core.
    I was afraid it would come to that.

    Before I go that far, since a re-install would be such a pain, I've got it
    to seeing two processors, correctly identified, in Device Manager. Is there
    another approach that might work?

    Or, perhaps, something like install on another drive (I've got a pair of
    these) and copy all of C:\Windows\system32? Or the key files or
    directories? Or something similar?

    Either way, thanks.

    - Bill

    >
    > --
    > Richard G. Harper [MVP Desktop] rgharper@xxxxxx
    > * NEW! Catch my blog ... http://msmvps.com/blogs/rgharper/
    > * PLEASE post all messages and replies in the newsgroups
    > * The Website - http://rgharper.mvps.org/
    >
    >
    > "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    > news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    >> I'm running Vista Ultimate 32 bit.
    >>
    >> I've had a single-core AMD Athlon in here since I build the machine and
    >> installed Vista.
    >>
    >> I just updated to a Dual core AMD Athlon.
    >>
    >> When I first powered up, the BIOS reported an unknown model AMD with two
    >> cores. Vista, in System Information, reported an unknown AMD with a
    >> single core. So, I updated the BIOS. The BIOS now reports the correct
    >> AMD with two cores. Vista, in System Information, now reports the
    >> correct AMD, but with one core, one logical processor. Performance meter
    >> and other things which would normally show two dials or scales for a dual
    >> core still show only a single display.
    >>
    >> Someone suggested I check Processors under Device Manager. That shows
    >> "AMD Processor unknown model" twice. They suggested that Vista is
    >> "stuck" from the start up with the BIOS that didn't ID the CPU and I
    >> should delete the two entries under Processor and reboot to let it
    >> rediscover them. I've seen this work for other things, but I'm feeling a
    >> bit cautious about doing it to the CPU.
    >>
    >> Is this the right way to go? Any other ideas?
    >>
    >> - Bill
    >>
    >

      My System SpecsSystem Spec

  10. #10


    philo Guest

    Re: Dual core, only sees one


    "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    news:4B9545DB-7E8F-4B41-9900-D9C910F8DE64@xxxxxx

    > "philo" <philo@xxxxxx> wrote in message
    > newsuudnTu999sDaNfUnZ2dnUVZ_t7inZ2d@xxxxxx

    > > "Bill Leary" <Bill_Leary@xxxxxx> wrote in message
    > > news:C1F09869-C409-481E-9FD9-1D841D75976D@xxxxxx

    > >> I'm running Vista Ultimate 32 bit.
    > >>
    > >> I've had a single-core AMD Athlon in here since I build the machine and
    > >> installed Vista.
    > >>
    > >> I just updated to a Dual core AMD Athlon.
    > >>
    > >> When I first powered up, the BIOS reported an unknown model AMD with
    two

    > >> cores. Vista, in System Information, reported an unknown AMD with a
    > > single

    > >> core. So, I updated the BIOS. The BIOS now reports the correct AMD
    with

    > >> two cores. Vista, in System Information, now reports the correct AMD,
    > >> but
    > >> with one core, one logical processor. Performance meter and other
    things

    > >> which would normally show two dials or scales for a dual core still
    show

    > >> only a single display.
    > >>
    > >> Someone suggested I check Processors under Device Manager. That shows
    > > "AMD

    > >> Processor unknown model" twice. They suggested that Vista is "stuck"
    > >> from
    > >> the start up with the BIOS that didn't ID the CPU and I should delete
    the

    > >> two entries under Processor and reboot to let it rediscover them. I've
    > > seen

    > >> this work for other things, but I'm feeling a bit cautious about doing
    it

    > > to

    > >> the CPU.
    > >>
    > >> Is this the right way to go? Any other ideas?
    > >
    > > Though that may work,
    > > you can treat the cpu as any other hardware device and opt to "update
    > > drivers"
    > >
    > > then choose the appropriate one
    >
    > Didn't work. It claimed I already had the latest drivers.

    Here is what I'd do....though it's up to you:

    First I'd back everything up and assume that I was going to do a fresh
    install...
    then I'd force a driver update to a dual core or multiprocessor PC.

    just note: it might work or it might hose your entire system in the process!




      My System SpecsSystem Spec

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