Dual Xeon CPU with HT enabled

[Melmo]

Will Windows XP work with a Dual Xeon CPU setup usinf
Hyper Threading? Or will this be seen as 4 CPUs instead
of 2 ?

 

[Yves Leclerc]

XP Pro will work! XP Home will ignore the second physical processor..

The system will see them as 4 processors.

Y.

 

[Pete Baker]

Melmo

Only XP Professional supports 2 physically separate processors and
hyper-threading.

If it is working properly, with Hyper Threading enabled, then it *should*
look like there are 4 CPUs present - 2 logical (or virtual) CPUs for each
physical processor.

XP Home, on the other hand, does *not* support physically separate
processors. It does, however, support hyper-threading which creates 2
logical (or virtual) processors which share the workload. In such a case 2
identical logical processors will be seen.

hope that helps
Pete



"Melmo" wrote in message

 

[Bastet]

Will Windows XP work with a Dual Xeon CPU setup usinf
Hyper Threading? Or will this be seen as 4 CPUs instead
of 2 ?

Someone correct me if I'm wrong, but I didn't think Xeon processors (which,
to my mind, can be thought of as a 64-bit P3 (yes, I'm well aware they're
not)) supported HyperThreading - I thought this was an invention Intel
dreamt up for the later P4s?

FYI, if you wish to use a dual CPU board you must have XP Pro. Home cannot
support 2 processors (of course, this doesn't apply to HT CPUs as that's one
processor masquerading as two).

 

[Melmo]

Thanks for the input guys.

And to clear my initial question up a little bit I was
referring to the P4 Xeon with HT enabled running XP Pro.

We run quite a few FPS gameing servers and have found XP
Pro to be the best performing OS for this purpose. I
have Win 2003 Server, but I really didn't want to use the
license for a game server, and I didn't want all of the
extra overhead from the services that were not required.

Thanks again for your help!

 

[Pete Baker]

Glad to be of assistance Melmo....

and thanks for the follow-up.

Pete
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