HyperThreading Qs

Artem

Junior Member
Aug 8, 2002
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I was messing around with WCPUID, and I noticed something that caught my eye. I went to the "Feature Flags" section, and "Supported" right next to HyperThreading. The reason this struck me as odd is because I have a P4 2.53, B0 stepping, and to my knowledge HT is not enabled on these chips. My motherboad (GA-8IHXP) is supposed to support HT with the latest BIOS, which I have, but I see no option to turn it on. So which one is reporting incorrectly here: WCPUID, Processor, or the BIOS?
 

Desslok

Diamond Member
Jun 14, 2001
3,780
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Your chip does have Hyperthreading, but it was blown at the fab. Intel is waiting till the 3 gig chip to leave it enabled.
 

Artem

Junior Member
Aug 8, 2002
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Any way to force my BIOS to enable it, just for shits and giggles? And can anyone out there with a P4 2.53 check if WCPUID reports HT enabled?
 

andrey

Diamond Member
Oct 9, 1999
3,238
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Originally posted by: Artem
Any way to force my BIOS to enable it, just for shits and giggles? And can anyone out there with a P4 2.53 check if WCPUID reports HT enabled?
LOL, if you know how to take CPU apart and connect correct wires which are the size of just a few atoms, I'm pretty sure you can than enable HyperThreading in your P4-2.53 CPU :)

 

Bloodstein

Senior member
Nov 8, 2002
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And if u manage to do that....do take the time to post the "steps required to convert a p4 2.x to support HT" here.... ;-)
 

Wingznut

Elite Member
Dec 28, 1999
16,968
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WCPUID says my 2.8ghz supports HyperThreading.... But it doesn't. (Neither does your 2.53ghz.)
 

Artem

Junior Member
Aug 8, 2002
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Hmm, I just realized something. Considering my chip doesn't support HT, but the HT bit is set in the Feature Flags, how does my BIOS know it doesn't work?
 

zephyrprime

Diamond Member
Feb 18, 2001
7,512
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Turning it on in bios wouldn't do anything. All turning on HT in bios does is tell the processor to use HT but the processor can ignore the bios.
 

Artem

Junior Member
Aug 8, 2002
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Well, I decided to mess around with my BIOS to try to force it to do HT, and all I got was my computer not starting. I had to short some pins on the main bios to get the backup one on my 8IHXP to kick in. I thought I wasn't ever going to see that MB start up again for a while there too. But at least I'm sufficiently satisfied that there's no way to get HT to work on my 2.53.
 

EKAtBzboyz

Senior member
Nov 1, 2002
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Originally posted by: Artem
Well, I decided to mess around with my BIOS to try to force it to do HT, and all I got was my computer not starting. I had to short some pins on the main bios to get the backup one on my 8IHXP to kick in. I thought I wasn't ever going to see that MB start up again for a while there too. But at least I'm sufficiently satisfied that there's no way to get HT to work on my 2.53.

lol clearing the CMOS, something everyone should learn how to do before screwing around in the bios ;)