Windows XP Home and Professional

[Alexandrino Fernandes]

I read that one of the diferrences between XP Home and
Professional, is that professional supports two
processors.
I have a Mobile Pentium 4 HT. Do I need the XP
professional in order to take advantage of the HT
technology?

Thanks,
Alex

 

[Shenan Stanley]

I read that one of the differences between XP Home and
Professional, is that professional supports two
processors.
I have a Mobile Pentium 4 HT. Do I need the XP
professional in order to take advantage of the HT
technology?

Yes.
Google search it and you will find tons of articles stating this.

Also, in case you still doubt, here is a link to the White Paper from
Microsoft concerning HyperThreading technology:
http://www.microsoft.com/whdc/hwdev/platform/proc/HT-Windows.mspx

A quote from that paper:

HT is a microprocessor simultaneous multithreading technology (SMT)
that supports the concurrent execution of multiple separate instruction
streams, referred to as threads of execution, on a single physical
processor. When HT is used with the Intel Xeon processors that
support it, there are two threads of execution per physical processor.
Support has been implemented in Windows operating systems to take
advantage of this new technology. The goal of this paper is to describe
that support and to focus on areas of interest to OEM system
manufacturers and multithreaded application developers. The
Windows operating systems that are supported for logo qualification
on HT-enabled systems include:
· All versions of Windows 2000
· All 32-bit versions of Windows XP and the Windows
Server 2003 family

XP Home Edition is most definitely included in the "All 32-bit versions of
Windows XP" line.

 

[Guest]

I've got XP Home, and HT works just fine. (Two processors listed in Device Manager) You must have a motherboard BIOS that will be able to enable it.