Hyperthreading CPU but 2nd "CPU" not shown

Hi,



On a customer's system the second "cpu"does not show although:
+ CPU supports hyperthreading,
+ BIOS has hyperthreading enabled
+ ACPI 2.0 enabled.
+ Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
+ New hardware detected, 2x reboot.

But in Device Manager still 1 processor listed.
In Task Manager still 1 Performance Window.
How to fully enable hyperthreading ?


System description
P4 3GHz with hyperthreading.
2GB DDR400
WinXP Home + SP3
Office 2007
All updates
NOD32 A/V
RocketDock desktop enhancement


TIA,
John7

Some Confusion - hyperthreading permits "one" processor to process more than
one thread concurrently (providing application is programmed to take
advantage).

Hyperthreading by itself does not indicate multiple cores or processors.


"John7" <NoSp@m.No> wrote in message
news:485033cf$0$24404$5fc3050@news.tiscali.nl...
> Hi,
>
>
>
> On a customer's system the second "cpu"does not show although:
> + CPU supports hyperthreading,
> + BIOS has hyperthreading enabled
> + ACPI 2.0 enabled.
> + Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
> + New hardware detected, 2x reboot.
>
> But in Device Manager still 1 processor listed.
> In Task Manager still 1 Performance Window.
> How to fully enable hyperthreading ?
>
>
> System description
> P4 3GHz with hyperthreading.
> 2GB DDR400
> WinXP Home + SP3
> Office 2007
> All updates
> NOD32 A/V
> RocketDock desktop enhancement
>
>
> TIA,
> John7
>

What you say is true but a hyperthreaded processor will show up as two
logical processors in the Device Manager.

John

AJR wrote:

> Some Confusion - hyperthreading permits "one" processor to process more than
> one thread concurrently (providing application is programmed to take
> advantage).
>
> Hyperthreading by itself does not indicate multiple cores or processors.
>
>
> "John7" <NoSp@m.No> wrote in message
> news:485033cf$0$24404$5fc3050@news.tiscali.nl...
>
>>Hi,
>>
>>
>>
>>On a customer's system the second "cpu"does not show although:
>>+ CPU supports hyperthreading,
>>+ BIOS has hyperthreading enabled
>>+ ACPI 2.0 enabled.
>>+ Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
>>+ New hardware detected, 2x reboot.
>>
>>But in Device Manager still 1 processor listed.
>>In Task Manager still 1 Performance Window.
>>How to fully enable hyperthreading ?
>>
>>
>>System description
>>P4 3GHz with hyperthreading.
>>2GB DDR400
>>WinXP Home + SP3
>>Office 2007
>>All updates
>>NOD32 A/V
>>RocketDock desktop enhancement
>>
>>
>>TIA,
>>John7
>>
>
>
>

Open task manager..performance tab..view button..and under cpu history be
sure 'one graph per cpu' is picked.

"John John (MVP)" <audetweld@nbnet.nb.ca> wrote in message
news:%2355LxaAzIHA.4772@TK2MSFTNGP03.phx.gbl...
> What you say is true but a hyperthreaded processor will show up as two
> logical processors in the Device Manager.
>
> John
>
> AJR wrote:
>
>> Some Confusion - hyperthreading permits "one" processor to process more
>> than one thread concurrently (providing application is programmed to
>> take advantage).
>>
>> Hyperthreading by itself does not indicate multiple cores or processors.
>>
>>
>> "John7" <NoSp@m.No> wrote in message
>> news:485033cf$0$24404$5fc3050@news.tiscali.nl...
>>
>>>Hi,
>>>
>>>
>>>
>>>On a customer's system the second "cpu"does not show although:
>>>+ CPU supports hyperthreading,
>>>+ BIOS has hyperthreading enabled
>>>+ ACPI 2.0 enabled.
>>>+ Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
>>>+ New hardware detected, 2x reboot.
>>>
>>>But in Device Manager still 1 processor listed.
>>>In Task Manager still 1 Performance Window.
>>>How to fully enable hyperthreading ?
>>>
>>>
>>>System description
>>>P4 3GHz with hyperthreading.
>>>2GB DDR400
>>>WinXP Home + SP3
>>>Office 2007
>>>All updates
>>>NOD32 A/V
>>>RocketDock desktop enhancement
>>>
>>>
>>>TIA,
>>>John7
>>>
>>
>>

Open a command prompt and type:

set NUMBER_OF_PROCESSORS

If this shows 2, then HT is working

--PA





"John7" <NoSp@m.No> wrote in message
news:485033cf$0$24404$5fc3050@news.tiscali.nl...
> Hi,
>
>
>
> On a customer's system the second "cpu"does not show although:
> + CPU supports hyperthreading,
> + BIOS has hyperthreading enabled
> + ACPI 2.0 enabled.
> + Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
> + New hardware detected, 2x reboot.
>
> But in Device Manager still 1 processor listed.
> In Task Manager still 1 Performance Window.
> How to fully enable hyperthreading ?
>
>
> System description
> P4 3GHz with hyperthreading.
> 2GB DDR400
> WinXP Home + SP3
> Office 2007
> All updates
> NOD32 A/V
> RocketDock desktop enhancement
>
>
> TIA,
> John7
>

To all,

Please stop this architecture discussion.
I am trying to get a new customer's PC fixed.

Technical details described in initial post.
Please read first.

Additions:
- Asus P4PE2-X bios 1004
- 2x 512MB DDR400 (checked OK)
- Maxtor 160GB HD

According CPU-Z
P4 Prescott 90nm
Fam/Model/Step : F / 4 / 1
xFam./xMod./Rev: F / 4 / E0

Core 3GHz
Mult. 15x
Bus 200MHz
FSB 800MHz


Thank you.
John7

PS: considering bios 1005 although it states no improvements on this.



"Ricky" <rsjoiner@NO_SPAMbellsouth.net> schreef in bericht
news:zWX3k.3607$LL4.2057@bignews7.bellsouth.net...
> Open task manager..performance tab..view button..and under cpu history be
> sure 'one graph per cpu' is picked.
>
> "John John (MVP)" <audetweld@nbnet.nb.ca> wrote in message
> news:%2355LxaAzIHA.4772@TK2MSFTNGP03.phx.gbl...
>> What you say is true but a hyperthreaded processor will show up as two
>> logical processors in the Device Manager.
>>
>> John
>>
>> AJR wrote:
>>
>>> Some Confusion - hyperthreading permits "one" processor to process more
>>> than one thread concurrently (providing application is programmed to
>>> take advantage).
>>>
>>> Hyperthreading by itself does not indicate multiple cores or processors.
>>>
>>>
>>> "John7" <NoSp@m.No> wrote in message
>>> news:485033cf$0$24404$5fc3050@news.tiscali.nl...
>>>
>>>>Hi,
>>>>
>>>>
>>>>
>>>>On a customer's system the second "cpu"does not show although:
>>>>+ CPU supports hyperthreading,
>>>>+ BIOS has hyperthreading enabled
>>>>+ ACPI 2.0 enabled.
>>>>+ Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
>>>>+ New hardware detected, 2x reboot.
>>>>
>>>>But in Device Manager still 1 processor listed.
>>>>In Task Manager still 1 Performance Window.
>>>>How to fully enable hyperthreading ?
>>>>
>>>>
>>>>System description
>>>>P4 3GHz with hyperthreading.
>>>>2GB DDR400
>>>>WinXP Home + SP3
>>>>Office 2007
>>>>All updates
>>>>NOD32 A/V
>>>>RocketDock desktop enhancement
>>>>
>>>>
>>>>TIA,
>>>>John7
>>>>
>>>
>>>
>

To all,

Please stop this architecture discussion.
I am trying to get a new customer's PC fixed.

Technical details described in initial post.
Please read first.

Additions:
- Asus P4PE2-X bios 1004
- 2x 512MB DDR400 (checked OK)
- Maxtor 160GB HD

According CPU-Z
P4 Prescott 90nm
Fam/Model/Step : F / 4 / 1
xFam./xMod./Rev: F / 4 / E0
!!! No selection of cores possible despite enabled HT .

Core 3GHz
Mult. 15x
Bus 200MHz
FSB 800MHz


Thank you.
John7

PS: considering bios 1005 although it states no improvements on this.
"Ricky" <rsjoiner@NO_SPAMbellsouth.net> schreef in bericht
news:zWX3k.3607$LL4.2057@bignews7.bellsouth.net...
> Open task manager..performance tab..view button..and under cpu history be
> sure 'one graph per cpu' is picked.
>
> "John John (MVP)" <audetweld@nbnet.nb.ca> wrote in message
> news:%2355LxaAzIHA.4772@TK2MSFTNGP03.phx.gbl...
>> What you say is true but a hyperthreaded processor will show up as two
>> logical processors in the Device Manager.
>>
>> John
>>
>> AJR wrote:
>>
>>> Some Confusion - hyperthreading permits "one" processor to process more
>>> than one thread concurrently (providing application is programmed to
>>> take advantage).
>>>
>>> Hyperthreading by itself does not indicate multiple cores or processors.
>>>
>>>
>>> "John7" <NoSp@m.No> wrote in message
>>> news:485033cf$0$24404$5fc3050@news.tiscali.nl...
>>>
>>>>Hi,
>>>>
>>>>
>>>>
>>>>On a customer's system the second "cpu"does not show although:
>>>>+ CPU supports hyperthreading,
>>>>+ BIOS has hyperthreading enabled
>>>>+ ACPI 2.0 enabled.
>>>>+ Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
>>>>+ New hardware detected, 2x reboot.
>>>>
>>>>But in Device Manager still 1 processor listed.
>>>>In Task Manager still 1 Performance Window.
>>>>How to fully enable hyperthreading ?
>>>>
>>>>
>>>>System description
>>>>P4 3GHz with hyperthreading.
>>>>2GB DDR400
>>>>WinXP Home + SP3
>>>>Office 2007
>>>>All updates
>>>>NOD32 A/V
>>>>RocketDock desktop enhancement
>>>>
>>>>
>>>>TIA,
>>>>John7
>>>>
>>>
>>>
>

Thanks Pavel,

As I expected:
NUMBER_OF_PROCESSORS = 1
Another proof that HT is not working.

Still puzzled,
John7



"Pavel A." <pavel_a@NOwritemeNO.com> schreef in bericht
news:%23vMj1$HzIHA.3504@TK2MSFTNGP06.phx.gbl...
> Open a command prompt and type:
>
> set NUMBER_OF_PROCESSORS
>
> If this shows 2, then HT is working
>
> --PA
>
>
>
>
>
> "John7" <NoSp@m.No> wrote in message
> news:485033cf$0$24404$5fc3050@news.tiscali.nl...
>> Hi,
>>
>>
>>
>> On a customer's system the second "cpu"does not show although:
>> + CPU supports hyperthreading,
>> + BIOS has hyperthreading enabled
>> + ACPI 2.0 enabled.
>> + Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
>> + New hardware detected, 2x reboot.
>>
>> But in Device Manager still 1 processor listed.
>> In Task Manager still 1 Performance Window.
>> How to fully enable hyperthreading ?
>>
>>
>> System description
>> P4 3GHz with hyperthreading.
>> 2GB DDR400
>> WinXP Home + SP3
>> Office 2007
>> All updates
>> NOD32 A/V
>> RocketDock desktop enhancement
>>
>>
>> TIA,
>> John7
>>

Install the chipset drivers and update the processor drivers.

John

John7 wrote:

> To all,
>
> Please stop this architecture discussion.
> I am trying to get a new customer's PC fixed.
>
> Technical details described in initial post.
> Please read first.
>
> Additions:
> - Asus P4PE2-X bios 1004
> - 2x 512MB DDR400 (checked OK)
> - Maxtor 160GB HD
>
> According CPU-Z
> P4 Prescott 90nm
> Fam/Model/Step : F / 4 / 1
> xFam./xMod./Rev: F / 4 / E0
> !!! No selection of cores possible despite enabled HT .
>
> Core 3GHz
> Mult. 15x
> Bus 200MHz
> FSB 800MHz
>
>
> Thank you.
> John7
>
> PS: considering bios 1005 although it states no improvements on this.
> "Ricky" <rsjoiner@NO_SPAMbellsouth.net> schreef in bericht
> news:zWX3k.3607$LL4.2057@bignews7.bellsouth.net...
>
>>Open task manager..performance tab..view button..and under cpu history be
>>sure 'one graph per cpu' is picked.
>>
>>"John John (MVP)" <audetweld@nbnet.nb.ca> wrote in message
>>news:%2355LxaAzIHA.4772@TK2MSFTNGP03.phx.gbl.. .
>>
>>>What you say is true but a hyperthreaded processor will show up as two
>>>logical processors in the Device Manager.
>>>
>>>John
>>>
>>>AJR wrote:
>>>
>>>
>>>>Some Confusion - hyperthreading permits "one" processor to process more
>>>>than one thread concurrently (providing application is programmed to
>>>>take advantage).
>>>>
>>>>Hyperthreading by itself does not indicate multiple cores or processors.
>>>>
>>>>
>>>>"John7" <NoSp@m.No> wrote in message
>>>>news:485033cf$0$24404$5fc3050@news.tiscali.nl. ..
>>>>
>>>>
>>>>>Hi,
>>>>>
>>>>>
>>>>>
>>>>>On a customer's system the second "cpu"does not show although:
>>>>>+ CPU supports hyperthreading,
>>>>>+ BIOS has hyperthreading enabled
>>>>>+ ACPI 2.0 enabled.
>>>>>+ Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
>>>>>+ New hardware detected, 2x reboot.
>>>>>
>>>>>But in Device Manager still 1 processor listed.
>>>>>In Task Manager still 1 Performance Window.
>>>>>How to fully enable hyperthreading ?
>>>>>
>>>>>
>>>>>System description
>>>>>P4 3GHz with hyperthreading.
>>>>>2GB DDR400
>>>>>WinXP Home + SP3
>>>>>Office 2007
>>>>>All updates
>>>>>NOD32 A/V
>>>>>RocketDock desktop enhancement
>>>>>
>>>>>
>>>>>TIA,
>>>>>John7
>>>>>
>>>>
>>>>
>
>

In article <485033cf$0$24404$5fc3050@news.tiscali.nl>, NoSp@m.No says...
> On a customer's system the second "cpu"does not show although:
> + CPU supports hyperthreading,
> + BIOS has hyperthreading enabled
> + ACPI 2.0 enabled.
> + Windows "ACPI multiprocesor-pc" CPU device driver manualy selected.
> + New hardware detected, 2x reboot.
>
> But in Device Manager still 1 processor listed.
> In Task Manager still 1 Performance Window.
> How to fully enable hyperthreading ?

You manually installed a driver for "ACPI Multi".

Have you done the windows updates since, not the express ones, the
custom ones and then the optional hardware ones?

Have you also updated your BIOS to the most current version?


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drug dealer an "unlicensed pharmacist"
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