2 CPU's?

[Tim]

Ok, I recently changed my CPU in my PC. I ws able to boot
up my computer fine and my new processor was detected fine
by both my motherboard and WinXP, except, WinXP thinks
that I have two of them. My motherboard doesn't even have
two slots. The processor is supported by my motherboard.
As far as I know it has no real effect on performance, but
it's just something I want to get rid of if possible. I
am not used to having two CPU monitoring graphs in the
task manager, heh. I have tried uninstalling one of the
two processors (the second one it thinks I have is labeled
identical to the first and is the correct processor I am
using) but WinXP won't let me, it just never goes off of
the list. I have the most recent motherboard drivers and
my bios settings are all correct. When I boot up my
computer it only detects one processor and it is the
correct one. My specs are as follows:

Processor: P4 2.8GHz, 800MHz FSB, HT Tech, Prescott make
Motherboard: ASRock P4S55FX+
RAM: 512 DDR SDRAM PC2100
OS: Windows XP Home SPK 1a

Don't think anything else I have would be necessary to
list.

 

[Carey Frisch [MVP]]

Your new P4 2.8GHz CPU supports hyper-threading and
is being reported correctly.

Windows XP and Hyper-Threading
http://support.microsoft.com/default.aspx?scid=kb;en-us;810231

Hyper-Threading Technology
http://www.intel.com/technology/hyperthread/


--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User

Be Smart! Protect your PC!
http://www.microsoft.com/security/protect/

---------------------------------------------------------------------------------


| Ok, I recently changed my CPU in my PC. I ws able to boot
| up my computer fine and my new processor was detected fine
| by both my motherboard and WinXP, except, WinXP thinks
| that I have two of them. My motherboard doesn't even have
| two slots. The processor is supported by my motherboard.
| As far as I know it has no real effect on performance, but
| it's just something I want to get rid of if possible. I
| am not used to having two CPU monitoring graphs in the
| task manager, heh. I have tried uninstalling one of the
| two processors (the second one it thinks I have is labeled
| identical to the first and is the correct processor I am
| using) but WinXP won't let me, it just never goes off of
| the list. I have the most recent motherboard drivers and
| my bios settings are all correct. When I boot up my
| computer it only detects one processor and it is the
| correct one. My specs are as follows:
|
| Processor: P4 2.8GHz, 800MHz FSB, HT Tech, Prescott make
| Motherboard: ASRock P4S55FX+
| RAM: 512 DDR SDRAM PC2100
| OS: Windows XP Home SPK 1a
|
| Don't think anything else I have would be necessary to
| list.

 

[R. McCarty]

Your processor is a "Hyperthreaded" CPU. It's one physical
processor, functioning in XP as two independent CPU's.
This is normal, you don't need to make any changes. However,
you can turn off Hyperthreading support in the Motherboard
BIOS settings. But if you do, you'll loose HT support for the
programs that support it.

 

[Miha Pihler]

Hi Tim,

You really have only one processor, but it is built on Hyper Threading
technology (that is what that HT Tech means in your specification). That is
why you see two processors in Task Manager. If you would have two processors
with HT you would see four.

What you can do in Task Manager under Performance Tab click on View > CPU
History > One Graph for all CPUs.

The other options is the disable hyper threading in BIOS, but I would advise
against it since it will decrease performance of your computer.

Mike

 

[Chris Forecast]

See here for more:

http://www.2cpu.com/articles/42_1.html

Chris

 

[Tom]

Hi Tim,

You really have only one processor, but it is built on Hyper Threading
technology (that is what that HT Tech means in your specification). That is
why you see two processors in Task Manager. If you would have two processors
with HT you would see four.

No, he wouldn't see four, since Home (as he stated he is using) cannot use 2 CPUs, only the Pro and Server Editions can.

 

[Alex Nichol]

Ok, I recently changed my CPU in my PC. I ws able to boot
up my computer fine and my new processor was detected fine
by both my motherboard and WinXP, except, WinXP thinks
that I have two of them. My motherboard doesn't even have
two slots. The processor is supported by my motherboard.

You have one of the new Intel Hyperthreaded CPU chips, that behave like
two separate virtual CPUs. Makes it possible to have two separate
threads running in parallel, one on each. Very few programs take
advantage of this, so you will not see extra speed in an individual 'cpu
bound' program, but they will interact less if running in parallel with
other work