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General discussion

My device Manager Says 2 cpu's?BOBhelp please

by ktheaker Mar 15, 2005 2:53AM PST

My Pentium(R)4 CPU is listed twice in my device manager? I just noticed this. My profile has some of the specs of my computer.Windows xp pro etc.I Gave an independant tec $2300 dollars cash and told him to build me the best pc for video editing that he could for that money. I find the computer really fast and have not had any problems with video editing speed,Hardware,or software. I use alot of different software.I have dual sided corsair ram. 800 FSB. I have had this computer for about a year and now only put it on the internet to update software etc.Is It possible that I have 2 Processors in my motherboard Asus PE Deluxe? Or is something wrong with my device manager and if so do you know how to fix it? Where else can I look to find out? I do have mcafee antivirus on all my computers, but on the computer in question I update the virus scan when ever I go on the net.Anything you can tell me will be greatly appreciated.
Thanks Kt.

Discussion is locked

8 Posts
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That's normal with a CPU that has
by Ray Harinec Mar 15, 2005 2:58AM PST

Hyperthreading and it is enabled in the BIOS.

P4's with 800 MHz FSB starting at 2.4 GHz has hyperthreading.

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same thing in my case
by shredz Apr 14, 2005 8:44PM PDT

i have the same thing going on, but now that i know WHY... my question is... will i degrade performance by disabling "hyperthreading" in the BIOS to make processor appear as a single cpu in my device manager, and other system properties displays? Maybe i'm just OCD about this, but i recall there only being ONE listed awhile back, and now system seems a lil slower. i've replaced windows98 with windowsXP_pro_sp-2, on an Asus P4P800-VM motherboard. Maybe it's a default thang with american megatrends after the installation of XP pro. Can i disable hyperthreading to list only 1 cpu? Any comments would be appreciated. Thanks in advance

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Yes.
by r. proffitt Forum moderator Apr 14, 2005 9:27PM PDT

Since it's undoable, do try it both ways. Even the boot time in NT/2000/XP/2003/Linux/BeOS suffers.

Bob

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yeah...
by ozos Apr 16, 2005 3:29PM PDT

with HT off the P4 will perform better in gaming (noticebly) with HT on, the P4 will multi-task better

most gamers shut it off
most home users turn it on/leave it on


your choice
also
it's not a problem...or a bad thing

if it was me, i'd leave it be, as i don't game so much
but if you game most of the time, turning it off will help out your frame rate

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Tried it in America's Army.
by r. proffitt Forum moderator Apr 16, 2005 11:58PM PDT

Performace suffered with HT disabled.

Very odd advice about turning it off IMO.

Bob

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hmmm, that is odd
by ozos Apr 17, 2005 10:30AM PDT

from most benchmarks i've seen, you want HT off
i get that from Tom's Hardware, but i can't seem to find it (it's their review of the first HT CPU, the 3.06GHZ Pentium 4...it ran better w/o HT iirc)

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Farcry....suffered with HT off.
by r. proffitt Forum moderator Apr 17, 2005 10:33AM PDT

The kid only will try one at a time so the score is 2 were worse (less frames and such) so I can't say this advice is working for us.

Bob

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Thanx Ozos..
by shredz Apr 17, 2005 11:14AM PDT

Ozos,
Thanx... that's what i was after. Ciao

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