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Windows 7: Quad Core- 3 Cores Disabled/Not working??


31 Dec 2008   #1

Windows 7
 
 
Quad Core- 3 Cores Disabled/Not working??

I just installed/upgraded Windows 7 7000 build today and just noticed 3 of my cores are disabled even though they are enabled in the bios.

Everything else is working fine.

Any ideas as to what might be causing this issue.

Thanks

My System SpecsSystem Spec
.

31 Dec 2008   #2

 

Hi, zforce, and welcome to the forums.

Have you checked to see if the number of processors specified in your boot options (you can use MSCONFIG) is manually set to 1?

See this tutorial over at Vistax64 for more info - most of the info applies to Windows 7 as well - Boot Advanced Options - Number of Processors - Vista Forums
My System SpecsSystem Spec
31 Dec 2008   #3

Windows 7
 
 

Thanks for the help.

Just went into MSCONFIG and it only gave me an option for 1 core.

The only place it shows four cores is in the Device Manager. From there I uninstalled the drivers for all 4 cores and restarted at which point windows 7 installed the drivers again, yet again, only 1 core is working.

I don't know..

Thanks
My System SpecsSystem Spec
.


31 Dec 2008   #4

Windows 7
 
 

I should mention, all 4 cores show in my vista 64 partition.

Thanks
My System SpecsSystem Spec
31 Dec 2008   #5
Joe

Windows 7 RC
 
 

Quote   Quote: Originally Posted by zforce View Post
Thanks for the help.

Just went into MSCONFIG and it only gave me an option for 1 core.

The only place it shows four cores is in the Device Manager. From there I uninstalled the drivers for all 4 cores and restarted at which point windows 7 installed the drivers again, yet again, only 1 core is working.

I don't know..

Thanks
Hello. In msconfig>boot>advanced options, tick the box next to number of processors, and the drop down box to allow for 4 should be available. I just checked this on my system. Let us know if that worked.
My System SpecsSystem Spec
31 Dec 2008   #6

 

Quote   Quote: Originally Posted by zforce View Post
Thanks for the help.

Just went into MSCONFIG and it only gave me an option for 1 core.

The only place it shows four cores is in the Device Manager. From there I uninstalled the drivers for all 4 cores and restarted at which point windows 7 installed the drivers again, yet again, only 1 core is working.

I don't know..

Thanks
Was it grayed out? If you tick the box (as Joe suggest below) then the drop down only shows a single core?

Have you installed any device drivers (such as for your chipset) and / or stuff that might be 'legacy drivers / drivers that may have issues with Windows 7?

Also, is this in a Virtual Machine or installed directly to your HD?

Quote   Quote: Originally Posted by Joe View Post
Hello. In msconfig>boot>advanced options, tick the box next to number of processors, and the drop down box to allow for 4 should be available. I just checked this on my system. Let us know if that worked.
I think that is what he did, but to be sure I am asking again - from what it sounds like to me, though, he did that and the drop down only shows a single core....
My System SpecsSystem Spec
31 Dec 2008   #7

Windows 7
 
 

Quote:
Was it grayed out? If you tick the box (as Joe suggest below) then the drop down only shows a single core?
Yes, it was grayed out, however I went into my Vista 64 bit MSconfig and was actually able to change the Windows 7 boot settings from 1 to 4, yet when I started windows 7, only 1 core was working.

Quote:

Have you installed any device drivers (such as for your chipset) and / or stuff that might be 'legacy drivers / drivers that may have issues with Windows 7?
No, I didn't install any drivers post windows 7, it was all transferred via upgrade from windows vista.

Do you know of any Legacy drivers in particular that might be causing the issue?

Also, it installed on my harddrive.

Thanks
My System SpecsSystem Spec
31 Dec 2008   #8

Windows 7 Ult x64(x2), HomePrem x32(x4), Server 08 (+VM), 08 R2 (VM) , SuSe 11.2 (VM), XP 32 (VM)
 
 

are you running as admin???

i dont see any other variable other than the easy transfer....

it might not be legacy *drivers* but it might be legacy configurations....

can you try to install it just vanilla???

no easy transfer (meaning before you do the easy transfer..)

and can you report back

also can Windows 7 see your cpu as the one thats installed??
My System SpecsSystem Spec
01 Jan 2009   #9

Windows 7 Ultimate Vista Ultimate x64
 
 

I had the same problem on Vista which was fixed by ticking detect HAL in the advanced options in msconfig.
My System SpecsSystem Spec
01 Jan 2009   #10

Windows 7
 
 

Quote   Quote: Originally Posted by Mr GRiM View Post
I had the same problem on Vista which was fixed by ticking detect HAL in the advanced options in msconfig.
I have been working on this issue all night and guess what...I'm done thanks to you.

Thats exactly what had needed to be done.

Funny thing is, I actually checked the "dtect hal" at one time and changed my mind thinking it wouldn't do anything. Boy was I wrong.

Again, let me thank you and everyone for their help on this issue.

Thanks!
My System SpecsSystem Spec
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 Quad Core- 3 Cores Disabled/Not working??




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