CPU's not showing 8 cores

[dmdilks]

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.

 

[logicearth]

...You need to leave the settings in msconfig alone. The check box labeled "Number of processors" needs to be unchecked.

 

[dmdilks]

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.

 

[logicearth]

You need to leave msconfig alone, "Number of processors" needs to be unchecked. After that restart and never use msconfig in the regard.

 

[Kaktussoft]

if device manager lists 8 and msconfig lists4 it means 4 are hidden for windows.
Do this in elevated command prompt

bcdedit/deletevalue numproc

Reboot and problem is solved.

 

[whs]

What does it show in Resource Monitor > CPU tab (the graphs on the right side).

 

[Kaktussoft]

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.

 

[dmdilks]

if device manager lists 8 and msconfig lists4 it means 4 are hidden for windows.
Do this in elevated command prompt

bcdedit/deletevalue numproc

Reboot and problem is solved.

I'll give the guy a call later and have him try it thanks.

 

[dmdilks]

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.

 

[Kaktussoft]

if device manager lists 8 and msconfig lists4 it means 4 are hidden for windows.
Do this in elevated command prompt

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

 

[RoasterMen]

I thought i7 didn't have a HyperThreading system because it's power enough?

 

[Kaktussoft]

I thought i7 didn't have a HyperThreading system because it's power enough?

Read wikipedia link I posted

 

[Kaktussoft]

In Intel Core i7 - Wikipedia (sorry in Ducth [my language])
Hyperthreading is weer aanwezig, de vier cores ondersteunen allen twee threads. Dit betekent dat zowel software als het besturingssysteem acht cores herkent.

In english:

Hyperthreading is present again, the four cores all support two threads. This means that both the software and the operating system recognizes eight cores.

 

[Layback Bear]

ARK | Intel® Core

 

[dmdilks]

Well we are at a stand still. I sent him a email and told him to go back into msconfig and change it back 1 cpu and uncheck the box. Well he changed it to one cpu and didn't uncheck the box and from that time he has nothing but BSOD.

So I tried it on my spare i7 and it was fine. It boot right back into windows and I able to change it back. We got back into windows under safe mode and he uncheck the box and it still BSOD. He even tried a system restore with no luck.

I told him I would do some more research on it but I told we might have to start from the begainning and reinstall windows again. So that is where we are at and thanks for the help. If I had the computer in front of me it would a different story. But when you dealing with somebody on the phone and 3000 miles away this is what you get.

 

[Kaktussoft]

#5 should solve the original problem.

The setting in msconfig you're talking about only slows down the machine. Very unlikely to cause a BSOD. I'm glad you could set it back using safe mode. Did he check if he sees 8 processors now?

No idea why it still BSOD's. You did a system restore... I think that should fix it.... strange.
As far as i know system restore doesn't restore the bcd store that I let him modify using bcdedit command. Maybe the extra enabled cores are faulty(?)

What BSOD did he get?

 

[dmdilks]

It blue screens right after the windows logo screen. That could almost be anything. SSD, Video card, MB, or Memory. Everything is brand new too.

 

[Wordsworth]

It blue screens right after the windows logo screen. That could almost be anything. SSD, Video card, MB, or Memory. Everything is brand new too.

Correct that it could be many things and I don't see the things done so far (unchecking number of CPUs, etc.) as causing a BSOD. But shipping a long distance can have consequences, even something like a video card coming loose. Suggest that the user, or someone the user knows can monkey around inside a computer, open it up and redo everything except the CPU, which I'd leave for last if its necessary.

 

[dmdilks]

He move memory around and put in a diffifernt video card. reset the cmos and still blue screens. Today he is going reinstall windows with my help. I'll get back on what happpens. Plus we did one thing at a time too and tried it.

 

[dmdilks]

Thanks guys and he is backup and running and he said this time he is not going to worry about if the cpu's are park or unpark.