Does anyone use Windows 2000 with P4 hyperthreading?

[PeteRoy]

I used to have Windows 2000 on my Pentium 3 and I could use it on my P4 hyperthreading instead WinXP.

I want to know if anyone is using Windows 2000 with hyperthreading, if it any different than how it is in windows xp.

Thank you.

 

[kurt454]

I believe windows 2000 could make use of two physical processors, but not hyperthreading. I can't remember the reasons why atm.

 

[wpshooter]

I have three computer that are using Windows 2000 Pro which are capable of using Hyperthreading but I do not have it enabled.

 

[CalvinHobbes]

Everything I've read says that Windows 2000 doesn't use HT. There was also something from either Intel or MS that said to disable HT when using Windows 2000 but I can't find it right now. Not sure if SP4 has addressed any of these issues.

 

[rstrohkirch]

It's not supported correctly in win2k. It generally results in a small decrease in performance if you turn it on, unless MS released a patch for it.

 

[Slowlearner]

http://www.intel.com/support/processors/sb/CS-017343.htm

The following desktop operating systems are not recommended for use with Hyper-Threading Technology. If you are using one of the following desktop operating systems, it is advised that you should disable Hyper-Threading Technology in the system BIOS Setup program:

Microsoft Windows 2000 (all versions)
Microsoft Windows NT* 4.0
Microsoft Windows Me
Microsoft Windows 98
Microsoft Windows 98 SE