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Hyperthreading


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#1 Gothmog

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Posted 10 March 2006 - 02:27 AM

I just ran my comp through the PCMark05 Basic version and in the results I saw this field:

HyperThreading___________________ Available - Disabled

My processor is a P4 2.8 Ghz (running at 2792 MHz) and I got this processor with the system in Jan of '03. I didn't think they had HT tech back when I got it.

Is this like a false positive or is there a way to activate HT on my proc, if it will make it run better. IDK much about HT except that it is only helpful for apps written to use it, and that it can even slow down non-native HT apps.

any info would be good, thanx.

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#2 Mr Alpha

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Posted 10 March 2006 - 03:12 AM

If I remember correctly HT was introduced with the Pentium 4 3.06 GHz. But I heard some talk about all P4s supporting HT but it is only turned off, in which case there might be some dirty hack to turn it on, and which would explain your false positive. You'd still require a compatible OS, BIOS and chipset.
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#3 nosnhoj#3

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Posted 10 March 2006 - 04:05 AM

Hi there,

I am not possitive on this, but I think I may have read somewhere that a processor with HT shows up as two CPU's when you open taskmanager with certain apps. Under the processes tab Right-Click a running process, click Set Affinity... to see the number of CPU's are running.

I have a Dual-Core, otherwise I would check it out myself, and as long as one can determin which programs do not support DC processors, the non-supportive apps. can be individually set to run on only one CPU. An example of this is Open Office, at least the version before this last release anyway. It was very buggy under the DC, but after changing the affinity to 1 CPU, other than hogging my RAM, it worked great.

Just some food for thought,

nos :thumbsup:
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So I'm still right, cause I could have been wrong.

#4 CASTIGLIANO

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Posted 10 March 2006 - 01:59 PM

u can Enabled HT in BIOS settings. My MB is HT compatible but my CPU(P4) is not, so i dont have HT.

#5 Enthusiast

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Posted 10 March 2006 - 03:08 PM

Some Pent 4s starting at 2.4 GHZ have HT technology and to use it you need to have matching RAM sticks installed as directed by the MB manufacturer. The MB must also have been designed for this.

HT Technology requires a computer system with:
A processor that supports HT Technology
HT Technology enabled chipset
HT Technology enabled system BIOS
HT Technology enabled/optimized operating system




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