Okay basically, my hyperthreading was ON, and i turned it OFF to see if it would be faster, and it didn't, so now im trying to turn it back ON and it won't turn ON even though my BIOS says it's ENABLED but my CTRL-ALT-DELETE Graphs only show 1 graph when it use to show 2 graphs when i had it ON. Help please thanks.
My Motherboard:
INTEL D865PERL; 2.8 GHZ Processor

When you go back into BIOS, does it say enabled or disabled? Most of the time when you exit BIOS it'll ask you if you want to save before you exit or discard the changes then exit - be sure to select the right choice.

As for Task Manager, you can go to "View > CPU History > One Graph Per CPU" if it isn't already enabled.

It's enabled and " One graph per CPU" is enabled but i only get one graph.

Download CPU-Z and see what it says about the threads you have.

go to device manager and uninstall the cpu then let windows detect it again.

1 Thread


1st. I have 2 processors there for some reason.
2nd. So i uninstalled both, restarted computer, and nothing much happened.

you ARE supposed to have 2 processors showing up...since thats what hyperthreading does..

anyways, this is what my computer looks like. its a P4 3.2ghz. it has HT and 2 logical processors show up here/2 threads. i guess try doing what the person above suggested or "SCAN FOR HARDWARE CHANGES"


back when P4 was all that, i remember benchmarks on HT on vs HT off and although HT was slower sometimes, HT is faster on average... lol..but still, i think i need a new computer

pentium (d)ual core is two actual cores while the pentium 4 is just logical thats why windows see's it as two. they've done away with hyper threading because cpu they have now doesnt need this feature to be fast and efficient.

upgrading to any of the core 2 duo or quad from a pentium 4 and you will see GINORMOUS difference in speed and performance.

here's a link that compare a bunch of processors new and old.

http://www.cpubenchmark.net/

Here's mine:

Try going under "Computer" in the device manager and delete the item specified under there. The most likely reason your computer sees both virtual processors but it isn't being used by the system is because your HAL is set to a uniprocessor HAL. Your HAL is created dynamically when you first install the OS, so in the worst case scenario, you might not be able to go back to a multiprocessor(smp) HAL. The process of correcting this can be complex and varies depending on hardware/software (or not) so Google it for more information. Do this and any other instructions you find at your own risk. If you mess with the HAL and break it, then your operating system is done.



Hyperthreading in some form is going to come back to Intel with their next gen cpus. Supposedly with decreased silicon sizes and other "fixes", a lot of the energy innefficiencies and cache thrashing issues from the original HT implementation will be resolved. Ideally, better to use those idle wait states for something...

Basically, i'm on 2 forums and we're both going to the same direction. Okay so i went to device manager, and under computers it says "Advanced Configuration and Power Interface (ACPI) PC. It didn't give me the option to delete it, but when i did a driver update, it gave me 2 options: "Advanced Configuration and Power Interface (ACPI) PC" and "Standard PC." Now on my other forum i got a few links related to this and here they are:
http://support.microsoft.com/kb/309283/en-us
http://support.microsoft.com/kb/811366/en-us

So basically i turned off hyperthreading support in bios and turned it back on, and then i don't understand the rest haha.



The Advanced Configuration and Power Interface (ACPI) PC doesn't have a uniprocessor or a multiprocessor HAL. If i'm going to have to reinstall my OS, is there a way to reinstall my OS without losing my information? My other SATA drive broke and i don't have a external hardrive. I'm not using DVDs.

would it make a difference if you changed the #processors through the boot.ini via msconfig?