Hyper Threading and Windows XP home edition

[Stormchasr]

I'm needing a little help, yesterday I upgraded my
computer from a Pentium III to a Intel P4 2.4ghz 800Mhz
(hyper threading support). I went to task manager hoping
to see the two processor screens indicating that XP is
using the hyper threading. I was dissapointed, it only
showed one processor. I did check in BIOS to make sure
that I had enabled hyper threading, it was. Am I missing
something? Everywhere I search on the web it says I
should see two processors in task manager. Also, another
weird thing is, if I go to device manager I don't even see
a processor at all in the hardware.
Please can anyone help me out? Spent a lot of money on
this, and of course want to use to full advantage.

Thanks in advance.

 

[StormChasr]

I'm sorry, I wasn't all that clear on my upgrades. I did
replace the Motherboard and DDR memory, this was a
complete system upgrade.

 

[AArDvarK]

Then you must get into your bios and change it.
Do you know how?

Alex

 

[stormchasr]

Ok, go into BIOS and change it to what, I enabled hyper
threading in the BIOS already. On Boot-up it shows hyper
threading enabled. Or is there something else I need to
change?

 

[Martin]

Ok, go into BIOS and change it to what, I enabled hyper
threading in the BIOS already. On Boot-up it shows hyper
threading enabled. Or is there something else I need to
change?

Is a Repair Install required after the upgrade?

Martin.

 

[Martin]

Is a Repair Install required after the upgrade?

Martin.

I've been thinking and maybe you need to do a repair install to update the
Hardware Abstarction Layer...
An upgrade to dual processors would need a repair so presumably the upgrade
to hyper-threading would need a repair install too.

I'd suggest that you have a browse through the Google Groups for any
relevant info.

Martin.

 

[Bob Knowlden]

XP Home definitely supports hyperthreaded CPUs.

Have you done a repair install (or clean install) of XP onto the new system?
That ought to do it for you, if HT is enabled in the BIOS. (The down side is
that you'll lose everything installed via Windows Update.) If you simply
transplanted the HD with XP on it, it may be unusual that Windows boots at
all.

HTH.

Bob Knowlden

Spam dodger may be in use. Replace nkbob with bobkn.

 

[Thomas Wendell]

Unless you've upgraded the HAL (repair install, with attendant WUpgrade and
hotfixes...), XP won't use the hyperhreading part, as it can't "see the
second processor"...

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[Jason Tsang]

It is really worth your while in your case to do a repair install.

It'd be a waste of your processor to avoid doing it.

 

[Christopher L. Estep]

Is a Repair Install required after the upgrade?

Martin.

A Repair Install is required after any motherboard change (especially with a
different chipset).

To save your settings, when Setup detects the old version, select F5
(Repair).

Christopher L. Estep

 

[Courtney]

XP Home does not support hyperthreading which Microsoft treats as SMP
(symetric multiprocessor). XP Pro does.

courtney....

 

[G.M.]

XP Home does not support hyperthreading which Microsoft treats as SMP
(symetric multiprocessor). XP Pro does.

courtney....

Wrong. XP Home most certainly does support hyperthreading.

<snip>