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Windows 7: CPU's not showing 8 cores

11 Jan 2013   #1
dmdilks

Windows 8, 7, Vista x32 & x64
 
 
CPU's not showing 8 cores

Let start at the begainning that when I first built the computer it showed 8 cores. Plus I had it showing 8 cores and all the cores were unpark too in task manager. Sent the computer back to the person that I had got if from. I had upgraded it for him. He tried to install the software Utlilties to check and set stuff for the motherboard. Well it went wrong and he did a system restore. From that point on things when down hill. The computer than would not post. So he called me and we got things back up and running.

But now in task manager it is only showing 4 cores, in msconfig it is showing in the boot that he only can boot up to 4 cpu's. In the device manager it is showing 8 cores. We went into the Bios and everything is set right in there. In the Power Options/advanced settings under Processor performance core parking it is showing 100%. The thing is the computer is running fine but in some areas it does show 8 cores. The thing is he lives on the west coast and I live on the east coast. I think there is some setting that have to be change in the registry.


My System SpecsSystem Spec
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11 Jan 2013   #2
logicearth

Windows 10 Pro (x64)
 
 

...You need to leave the settings in msconfig alone. The check box labeled "Number of processors" needs to be unchecked.
My System SpecsSystem Spec
11 Jan 2013   #3
dmdilks

Windows 8, 7, Vista x32 & x64
 
 

This is a EVGA Z77 FTW with a i7-3770 Ivy Bridge 3.4GHz / bois 1.10

I understand what you are saying and the person that I'm helping does too. It should be showing 8 cpu's in msconfig and not just 4 cpu's. It should be showing 8 cpu's in task manager and it is only showing 4 cpu's. It does show 8 cpu's in device manager. All the i7 machines that I own show 8 cpu's in all those areas. It was fine till he did a system restore.
My System SpecsSystem Spec
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11 Jan 2013   #4
logicearth

Windows 10 Pro (x64)
 
 

You need to leave msconfig alone, "Number of processors" needs to be unchecked. After that restart and never use msconfig in the regard.
My System SpecsSystem Spec
11 Jan 2013   #5
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

if device manager lists 8 and msconfig lists4 it means 4 are hidden for windows.
Do this in elevated command prompt
Code:
bcdedit/deletevalue numproc
Reboot and problem is solved.
My System SpecsSystem Spec
11 Jan 2013   #6
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

What does it show in Resource Monitor > CPU tab (the graphs on the right side).
My System SpecsSystem Spec
11 Jan 2013   #7
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by dmdilks View Post
Let start at the begainning that when I first built the computer it showed 8 cores. Plus I had it showing 8 cores and all the cores were unpark too in task manager. Sent the computer back to the person that I had got if from. I had upgraded it for him. He tried to install the software Utlilties to check and set stuff for the motherboard. Well it went wrong and he did a system restore. From that point on things when down hill. The computer than would not post. So he called me and we got things back up and running.

But now in task manager it is only showing 4 cores, in msconfig it is showing in the boot that he only can boot up to 4 cpu's. In the device manager it is showing 8 cores. We went into the Bios and everything is set right in there. In the Power Options/advanced settings under Processor performance core parking it is showing 100%. The thing is the computer is running fine but in some areas it does show 8 cores. The thing is he lives on the west coast and I live on the east coast. I think there is some setting that have to be change in the registry.
I "Core I7" has 2, 4 or 6 cores! Intel Core - Wikipedia, the free encyclopedia
Most likely you have 4 cores. Through hyperthreading it looks like you have 8.
My System SpecsSystem Spec
11 Jan 2013   #8
dmdilks

Windows 8, 7, Vista x32 & x64
 
 

Quote   Quote: Originally Posted by Kaktussoft View Post
if device manager lists 8 and msconfig lists4 it means 4 are hidden for windows.
Do this in elevated command prompt
Code:
bcdedit/deletevalue numproc
Reboot and problem is solved.

I'll give the guy a call later and have him try it thanks.
My System SpecsSystem Spec
11 Jan 2013   #9
dmdilks

Windows 8, 7, Vista x32 & x64
 
 

Quote   Quote: Originally Posted by whs View Post
What does it show in Resource Monitor > CPU tab (the graphs on the right side).
It doesn't matter if you are looking at it in performance tab or the resource monitor it going to show the same thing. The only thing is that in the resource monitor it will tell if the cpu are park or unpark.
My System SpecsSystem Spec
11 Jan 2013   #10
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by dmdilks View Post
Quote   Quote: Originally Posted by Kaktussoft View Post
if device manager lists 8 and msconfig lists4 it means 4 are hidden for windows.
Do this in elevated command prompt
Code:
bcdedit/deletevalue numproc
Reboot and problem is solved.

I'll give the guy a call later and have him try it thanks.
Please post back if it is solved
My System SpecsSystem Spec
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 CPU's not showing 8 cores




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