Enable hyperthreading in Win2K

[bobg]

I have a dual processor system with Windows 2000 SP1
installed. I've had the system for quite a while. Although
the 'Performance' tab in the Windows Task Manager shows two
windows for the the CPU Usage History, I realized that the
BIOS had not been set to enable hyperthreading. I have
since done this in the bios and rebooted. However I still
see only two windows in the 'Performance' tab in the
Windows Task Manager. I should see four windows as in
another machine I have. I'd like to find a way to do this
without reinstalling the OS (which from a configuration
standpoint, would take days considering all of the software
and hardware on the system.

How do I enable this in Windows 2000? Is it possible? Is it
just a Registry change?

I know this works in XP Pro. I need the the power/speed for
CGI rendering.

Thanks to whomever can help.
Bob

 

[Tim Newton [MSFT]]

This depends on which version of Windows 2000 you are running. Windows 2000
Professional, like Windows XP Pro only support 2 processors. You would need
at least Windows 2000 Server to handle the 4 logical processors you would
have with two physical processors Hyperthreaded. Here is a web page that
tells how many procs each version can handle:

http://www.microsoft.com/windows2000/server/howtobuy/choosing/default.asp

--
Tim Newton [MSFT]
(e-mail address removed)

Search our Knowledge Base at http://support.microsoft.com/directory
Visit the Windows 2000 Homepage at
http://www.microsoft.com/windows2000/default.asp
See the Windows NT Homepage at http://www.microsoft.com/ntserver/

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