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

"philo" <> wrote in message
news...
>
> "Bill Leary" <> wrote in message
> news:C1F09869-C409-481E-9FD9-...
>> 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

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" <> wrote in message
news:C1F09869-C409-481E-9FD9-...
> 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
>

"philo" <> wrote in message
news...
> "Bill Leary" <> wrote in message
> news:C1F09869-C409-481E-9FD9-...
>> 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.

- Bill

"Michael Walraven" <> wrote in message
news:...
> 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

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]
* 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" <> wrote in message
news:C1F09869-C409-481E-9FD9-...
> 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
>

"Richard G. Harper [MVP]" <> wrote in message
news:...
> 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]
> * 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" <> wrote in message
> news:C1F09869-C409-481E-9FD9-...
>> 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
>>
>

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

it might help.






"Bill Leary" <> wrote in message news:667E2F56-01C7-4BF9-8C9E-...
"Richard G. Harper [MVP]" <> wrote in message
news:...
> 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]
> * 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" <> wrote in message
> news:C1F09869-C409-481E-9FD9-...
>> 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
>>
>

"i love vista" <> wrote in message
news:494b07a6$...
>
> "Bill Leary" <> wrote in message
> news:C1F09869-C409-481E-9FD9-...
>> 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?
>>
>>
> you must reinstall since the proper HIVE is not loaded
>
>
I think you mean HAL, and unless things have changed with Vista you are
right, a reinstall is required to get Windows to swtich from
uniprocessor to multiprocessor.

--
Zaphod

No matter where you go, there you are!

"Bob Campbell" <> wrote in message
news: m...
> "philo" <> wrote in message
> news:...
>> 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!
>
> There used to be a way to do this. I don't know if it still works with
> Vista.
>
> I changed a Windows 2000 Server box from single processor to dual
> processor several years ago without re-installing 2000. You need to
> change the "Computer" section of Device Manager, not the CPU section. In
> that case, I changed from "X86 uniprocessor" to "X86 multiprocessor" and
> re-booted. It worked fine.

The only thing under "Computer" on my machine is "Advanced Configuration and
Power Interface (ACPI) PC".

In the numerous items under "Properties" for that, there are none which
mention the processor type, number, or anything of that nature. HAL is
mentioned frequently, but that's all that seems in any way related.

- Bill