Can XP Pro handle dual cpu's?

[ZILLA]

Does anyone know for sure how well, if at all, Windows XP Professional
handles operating a system with dual processors? If so does it work
better with certain cpu's, i.e. P3, P4, Xeons, AMD? Thanks a lot!
- ZILLA

 

[Jim Macklin]

Yes, XP Pro does work with dual CPUs, and with hyperthreaded
CPU you will see 4 processors. You will need to have the
CPU installed and may need to do a repair install if the
system was installed with only one CPU.

The applications you use will determine the effectiveness of
the dual CPU or hyperthreading, since not all programs will
use all the resources.


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|
| Does anyone know for sure how well, if at all, Windows XP
Professional
| handles operating a system with dual processors? If so
does it work
| better with certain cpu's, i.e. P3, P4, Xeons, AMD?
Thanks a lot!
| - ZILLA
|
|
| --
| ZILLA

 

[John R Weiss]

Does anyone know for sure how well, if at all, Windows XP Professional
handles operating a system with dual processors? If so does it work
better with certain cpu's, i.e. P3, P4, Xeons, AMD? Thanks a lot!

Works fine with any dual-capable CPUs I know of. My dual Opteron machine is XP
Pro, but my dual P3 machine is still 2000 Pro.

P4 is not dual capable. For AMD, only Opteron 2xx and 8xx and the old MPs are
dual capable.

 

[Peter Foldes]

"P4 is not dual capable"

Since when? Must be doing something wrong since my P4 is dual and works just dandy.

 

[Sunny]

"P4 is not dual capable"

Since when? Must be doing something wrong since my P4 is dual and works just dandy.

Nonsense.

"Intel® Pentium® 4 processors and Intel Pentium 4 processor Extreme
Edition do not provide dual processing support."

http://www.intel.com/support/processors/pentium4/sb/CS-001622.htm

Sunny

 

[John R Weiss]

Since when? Must be doing something wrong since my P4 is dual and works just
dandy.

I doubt it, at least in the OP's context.

"Dual CPUs" and "dual core" and hyperthreaded P4s are 3 separate concepts:

"Dual CPUs" implies 2 separate CPUs in 2 separate sockets on 1 motherboard.
The PPro, P3, Xeon, AMD MP, and Opteron are examples of "Dual CPU" capable
systems. The P4 CPU is NOT dual capable. Win NT Pro, 2000 Pro, and XP Pro
support Dual CPUs; Win 9x, NT/2000 Workstation, and XP Home do not.

"Dual core" is a newer concept where 2 CPU cores are built into a single
chip and placed in a single socket on a motherboard. The Pentium D, Core Duo,
AMD x2, and Opteron 265/270/275... series are examples. AFAIK, all Win NT-based
OS versions will support dual-core operations. I don't know about Win 9x.

"Hyperthreading" is a concept in P4s ONLY that allows some parallel
operations within a single CPU core. It is NOT the same as a dual core or dual
CPU.

 

[Jason Tsang]

You have a dual core cpu. That is not the same as having two cpu's (i.e. 2
physical cpu chips) on one motherboard. You still have one physical cpu
chip)

--
Jason Tsang - Microsoft MVP

Find out about the MS MVP Program -
http://mvp.support.microsoft.com/default.aspx

"P4 is not dual capable"

Since when? Must be doing something wrong since my P4 is dual and works just
dandy.

 

[Triffid]

Does anyone know for sure how well, if at all, Windows XP Professional
handles operating a system with dual processors? If so does it work
better with certain cpu's, i.e. P3, P4, Xeons, AMD? Thanks a lot!
- ZILLA

I'm running XP Pro SP2 on several dual P3 1.4Ghz systems - works
perfectly. I prefer a dual P3 to any P4, mostly because foreground
responsiveness is much better under load.

Triffid

 

[Peter Foldes]

Jason

We do have a Dual P4 2.2 GHz processors. 2 PHYSICAL PROCESSORS on board. Not Dual Core.It is installed in our main server which is a Dell 2650 rack-mounted server . You can check this on the Intel site. It is available along with the 3.0 GHz which came out not so long ago

 

[John R Weiss]

Not quite... From Dell
(http://www1.us.dell.com/content/products/productdetails.aspx/pedge_2650?c=us&cs=28&l=en&s=dfb):

"Up to two Intel Xeon Processors with NetBurst Micro-architecture with
Hyper-Threading support."

Your server has Xeons, not P4s.

And yes, I do understand that Intel sometimes discriminates between generations
of Xeons by calling them P3 Xeon or P4 Xeon, but the bottom line is that the
mundane P4 is NOT dual capable (whereas the mundane P3 IS dual capable).

Also interesting... Dell claims
(http://www1.us.dell.com/content/pro...50?c=us&cs=28&l=en&s=dfb&~tab=specstab#tabtop)
just about any clock speed capability form 2.0 to 3.2 GHz for the 2650 EXCEPT
2.2!



We do have a Dual P4 2.2 GHz processors. 2 PHYSICAL PROCESSORS on board. Not
Dual Core.It is installed in our main server which is a Dell 2650 rack-mounted
server . You can check this on the Intel site. It is available along with the
3.0 GHz which came out not so long ago

 

[Guest]

Now we have dual core Opteron (eg 265/270) and dual opteron motherboards,
will Windows XP pro support the 4 processors presented to it? Is Windows
XP64 the same on CPU handling?

 

[Bob I]

Dual core counts as ONE cpu. Pro handles 2 cpus.

Now we have dual core Opteron (eg 265/270) and dual opteron motherboards,
will Windows XP pro support the 4 processors presented to it? Is Windows
XP64 the same on CPU handling?


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