My new P4 2.6C: HyperThreading not working correctly?...EDIT- FIXED!

Sunny129 · Nov 6, 2003

hi everyone. i just installed my new 2.6C. HT is enabled in the BIOS, however windows XP only sees one CPU (when i guess enabling HT should make windows see two CPUs?). any ideas?

blodhi74 · Nov 6, 2003

under windows task manager / view /CPU history is it showing " one graph per CPU " ?

Sunny129 · Nov 6, 2003

yes...the interesting part is that it is the only option under "view/CPU history." which means windows only see one CPU. i think i'm going to flash to the most recent BIOS and see what happens. although i do have the option to enable/disable HT in my current BIOS, which would make one think that the BIOS version isn't the issue, but you never know...

oldfart · Nov 6, 2003

Try removing the CPU from device mangler and see if if detects the new CPU(s)??

blodhi74 · Nov 6, 2003

good luck sir

Sunny129 · Nov 6, 2003

Originally posted by: oldfart
Try removing the CPU from device mangler and see if if detects the new CPU(s)??

nevermind...i guess windows does see two CPUs. should i remove one or both CPUs from the list?

*edit* by the way, i did go into the BIOS, disable HT, restart and enable it again just to see if it might start working the 2nd time around, but no such luck...

oldfart · Nov 6, 2003

So, you DO have 2 CPU's in device manager? That is a good sign!

When you go to task manager, do you have View->CPU history set to 1 graph per CPU?

Sunny129 · Nov 7, 2003

Originally posted by: oldfart
So, you DO have 2 CPU's in device manager? That is a good sign!

When you go to task manager, do you have View->CPU history set to 1 graph per CPU?

Yes, but that's the kicker...its still only showing one graph. and its my only option under view -> CPU history, when it should also have a "one graph, all CPUs" option as well. what gives?

oldfart · Nov 7, 2003

Download and install Speedfan (great program anyway). It has a CPU util display. See if it shows 2 CPu's

Sunny129 · Nov 7, 2003

Originally posted by: oldfart
Download and install Speedfan (great program anyway). It has a CPU util display. See if it shows 2 CPu's

you mean the small usage bar on the "readings" tab? its at 100%, and there's only one of them.

oldfart · Nov 7, 2003

There should be two of them

Delete both CPU's from device manager, reboot, see what happens when re detected??

What kind of PC in device manager? I have ACPI Multiprocessor PC

Sunny129 · Nov 7, 2003

Originally posted by: oldfart
There should be two of them

Delete both CPU's from device manager, reboot, see what happens when re detected??

What kind of PC in device manager? I have ACPI Multiprocessor PC

i have an ACPI PC, but not an ACPI Multiprocessor PC. also, when i uninstall a CPU from the device manager, it doesn't even disappear from the list, even though windows prompts me to restart for changes to take effect.

*edit* well i went through the motions anyways, even though the CPUs didn't disappear from the device list, and restarted. nothing changed...same old problem. wow, this is really getting annoying. if windows sees two CPUs in the device manager, then how is there not two graphs in the task manager when the view is set to "one graph per CPU"? and why is my CPU usage at 100% when it should be at 50%? are there any other BIOS settings that might tie into the hyperthreading thing other than just "enable/disable HT"?

oldfart · Nov 7, 2003

I dont know what else to suggest. Have you tried othe forums? Try ABXzone if you haven't already.

RalfHutter · Nov 7, 2003

Did you do a fresh OS install or did you reuse an old OS? If you didn't do a fresh install, try doing that.

If this doesn't work, consider this a bump and surf on over to Asusbords forums Intel Chipset forums and search. Your problem is somewhat common but is usually solved with the display settings trick, hopefully you'll be able to find your answer by searching at Asusboards.

oldfart · Nov 7, 2003

BTW, Asusboards.com had a name change to ABXzone.com

Sunny129 · Nov 7, 2003

Originally posted by: RalfHutter
Did you do a fresh OS install or did you reuse an old OS? If you didn't do a fresh install, try doing that.

If this doesn't work, consider this a bump and surf on over to Asusbords forums Intel Chipset forums and search. Your problem is somewhat common but is usually solved with the display settings trick, hopefully you'll be able to find your answer by searching at Asusboards.

by a fresh install, do you mean reformat, then install windows? or can i just reinstall over my current installation?

*edit* i couldn't find anything on that display settings trick in the other forums, but i did post something about my problem and hopefully i'll get responses soon. could you mind explaining it or linking me to a thread about it?

vailr · Nov 7, 2003

Did you run the Intel Chipset Driver install utility?
Latest version is 5.0.2.1003.

DaFinn · Nov 7, 2003

Originally posted by: Sunny129

Originally posted by: RalfHutter
Did you do a fresh OS install or did you reuse an old OS? If you didn't do a fresh install, try doing that.

If this doesn't work, consider this a bump and surf on over to Asusbords forums Intel Chipset forums and search. Your problem is somewhat common but is usually solved with the display settings trick, hopefully you'll be able to find your answer by searching at Asusboards.

Click to expand...

by a fresh install, do you mean reformat, then install windows? or can i just reinstall over my current installation?

*edit* i couldn't find anything on that display settings trick in the other forums, but i did post something about my problem and hopefully i'll get responses soon. could you mind explaining it or linking me to a thread about it?

You need to make a "fresh" install (format etc...) OR use the REPAIR option when using old installation. Just installing over the old one will not do the trick. So if you have old installation, you will not get it to work properly. You need Win to install the multiprocessor HAL (ie it should say ACPI MULTIPROCESSOR PC in device manager.)!!!

AluminumStudios · Nov 7, 2003

Do you have Windows XP home or Pro? If you have home, does it even support more than 1 CPU?

InlineFive · Nov 7, 2003

Originally posted by: AluminumStudios
Do you have Windows XP home or Pro? If you have home, does it even support more than 1 CPU?

WinXP Pro supports two physical CPUs (and Home does not) but both editions support HT.

Duvie · Nov 7, 2003

Originally posted by: DaFinn

Originally posted by: Sunny129

Originally posted by: RalfHutter
Did you do a fresh OS install or did you reuse an old OS? If you didn't do a fresh install, try doing that.

If this doesn't work, consider this a bump and surf on over to Asusbords forums Intel Chipset forums and search. Your problem is somewhat common but is usually solved with the display settings trick, hopefully you'll be able to find your answer by searching at Asusboards.

Click to expand...

by a fresh install, do you mean reformat, then install windows? or can i just reinstall over my current installation?

*edit* i couldn't find anything on that display settings trick in the other forums, but i did post something about my problem and hopefully i'll get responses soon. could you mind explaining it or linking me to a thread about it?

Click to expand...

You need to make a "fresh" install (format etc...) OR use the REPAIR option when using old installation. Just installing over the old one will not do the trick. So if you have old installation, you will not get it to work properly. You need Win to install the multiprocessor HAL (ie it should say ACPI MULTIPROCESSOR PC in device manager.)!!!

Wrong!!! I did not doa fresh install and as soon as I removed by p4b chip and installed the p4c chip...went into bios enabled HT...restarted...winxp loads and finds ACPI multiprocessor as Oldfart stated and my task manager shows 2 graphs....

I use TMPGenc program that has a switch in in for mulitthread and with it on I was around25% faster then with it off.....Yeah I would say it works....

Though the above person is wrong I would suggest in your case to do a fresh install...I would think the mobo obviously supports hyperthreading or the option would not be in the bios.

oldfart · Nov 7, 2003

I did the same when I went from a 2.4B to a 2.6C. It recognized the HT CPU and did everything automatically. No tweaks to the OS at all.

Sunny129 · Nov 7, 2003

Originally posted by: vailr
Did you run the Intel Chipset Driver install utility?
Latest version is 5.0.2.1003.

you think 5.0.2.1002 is too out of date? and can i get it at intel.com? b/c i can't find it at Abit's website.

Originally posted by: AluminumStudios
Do you have Windows XP home or Pro? If you have home, does it even support more than 1 CPU?

i have winXP pro.

Duvie · Nov 7, 2003

The drivers on the abit CD are just fine...I didn't have to update jack!!! My board came with latest Bios though. try the flashmenu program at Abit and update to latest Bios to be safe.

Sunny129 · Nov 7, 2003

Originally posted by: Duvie
The drivers on the abit CD are just fine...I didn't have to update jack!!! My board came with latest Bios though. try the flashmenu program at Abit and update to latest Bios to be safe.

actually i just updated the BIOS to the most current version last night. that didn't do the trick either, but at least i'm up to date.

*edit* look, you all know how it goes when you have a problem like this...reformatting is a last resort, and i hope i'm not nearing my last resort...

My new P4 2.6C: HyperThreading not working correctly?...*EDIT*- FIXED!

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My new P4 2.6C: HyperThreading not working correctly?...EDIT- FIXED!